Photonics & Instrumentation
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Photonics & Instrumentation

Research Centre for Photonics & Instrumentation

The centre has an established international reputation in the areas of measurement and instrumentation, sensor development, optical systems and photonics.

The centre's work builds on advanced experimental and theoretical developments to meet increasing industrial needs for advanced sensing and measurement and new developments in photonic devices and systems.

About the centre

Our vision

Being an internationally-leading ‘flagship’ research centre, recognised for its contribution and impact to these fields and ranging in its scope from basic scientific research to applied research, with an ultimate goal of addressing challenges in science and engineering and environmental processes through innovation in sensing technologies and in photonics systems and devices.

Expertise and capabilities

The centre is engaged in a breadth of research activity, covering the areas of sensing, photonics and telecommunications and drawing strength from synergies across these areas. It has particular expertise in novel optical fibre-based sensor design, fabrication and implementation, system measurement and control, waveguide and novel optical device modelling, design and modelling of solar cells with nanostructures, instrumentation and signal processing.

Portrait of Tong Sun

Professor Tong Sun

Membership

Academic staff (Core members)

Research staff

  • Dr M. Fabian     (Post-doctoral Fellow in Sensors)
  • Dr Q. Wu    (Post-doctoral Fellow in Sensors)
  • Dr S. Wren    (Post-doctoral Fellow in Sensors)
  • Dr C. McCague    (Post-doctoral Fellow in Sensors)
  • Dr Y. Chen    (Post-doctoral Fellow in Sensors)
  • Dr N. Kejalakshmy   (Post-doctoral Fellow in Photonics)
  • Dr B. Hooda   (Post-doctoral Fellow in Photonics)
  • Dr S. Raghuwanshi  (Post-doctoral Fellow in Photonics)

Visiting staff

  • Professor Richard Scott   (Consultant, Structural Engineer)
  • Professor Richard Brook FREng  (Director of E-synergy Ltd)
  • Professor Greg Baxter   (Pro-Vice Chancellor, Victoria University, Melbourne, Australia)
  • Professor David Monk   (Consultant, Optical and Telecommunications Engineer)
  • Professor David Johnson   (Consultant, Railway Engineer)
  • Dr Len Rogers     (Consultant, Assent Engineering Ltd)
  • Dr C. Themistos    (Senior Visiting Fellow)

Research activities

The research activity of the centre builds upon the foundation of research applied to practical and industrial problems in measurement and instrumentation in 1970 by Professor Ludwik Finkelstein FREng and since then the centre has fostered close links with industry, the professional bodies and groups internationally to support its mission.

In the sensors area, important contributions are being made in the development of a range of novel optical fibre sensors for various applications such as:

  • operation under very high temperatures and under extreme conditions;
  • condition monitoring of various structures, ranging from concrete, composite, limestone, through pantograph, electrical motors to marine propellers;
  • early fire and gas detection using novel tuneable fibre lasers;
  • drug/explosive detection using molecular recognition techniques;
  • agri-food and environmental monitoring using both molecular recognition and surface-plasmon-resonance based sensing methods.

In the photonics area, a wide spectrum of research is being undertaken to create new time-domain electro-magnetic and acoustic models for the characterisation of light-matter interactions design and optimise novel guided-wave structures in both optical and THz regimes using finite element methods.

Design optimisation of photonic crystal fibres, silicon photonics, biosensors, plasmonics, nonlinear photonics, and polarisation diversity PIC.


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Portrait of Sanowar Khan

Professor Sanowar Khan

Funded research projects

Principal investigator Co-investigators Project title Funder Amount awarded to City (exc. partners) Start date End date (inc. no-cost extension)
Professor Aziz Rahman Professor Ken Grattan, Professor Tong Sun Novel optical fibre sensors for structural stabilisation Newton Fund £150,000 1 April 2015 31 March 2016
Professor Tong Sun Professor Ken Grattan Brecknell Willis Pan Head Sensor Integration for Electrical Trains Brecknell Willis / RSSB £132,083 1 June 2014 31 May 2016
Professor Tong Sun Professor Ken Grattan

Optical fibre based self-monitoring motor devices

EU CleanSky €598,963 1 June 2014 31 May 2016
Professor Tong Sun Professor Ken Grattan Multi-parameter optical fibre chemical sensors for use in water sensing networks The Royal Society £12,000 1 April 2014 31 March 2016
Professor Ken Grattan   George Daniels Educational Trust George Daniels Educational Trust £520,000 2014 2019
Professor Ken Grattan   Royal Academy of Engineering Research Chair Royal Academy of Engineering £330,000 2014 2019
Professor Tong Sun Professor Ken Grattan POLINS: Pollution Inspections Scanning System for Soil using a robotic vehicle The European Commission FP7 £390,000 1 September 2013 31 August 2016
Professor Ken Grattan Professor Tong Sun Continuous Solid-state Smart Microwave-based System for Manufacturing Low-carbon Concretes Technology Strategy Board £207,746 1 April 2013 31 March 2016
Professor Tong Sun   Radiation-hard/soft optical fibre sensors for nuclear and medical applications British Council £31,923 1 April 2013 31 March 2014
Professor Tong Sun Professor Ken Grattan Novel drug sensor platform - bringing new technology closer to market Engineering and Physical Sciences Research Council £140,298 26 September 2012 28 February 2014
Professor Ken Grattan Professor Tong Sun Follow-on Fund: Instrumented Railway Current Collecting Pantograph Engineering and Physical Sciences Research Council £94,628 31 May 2012 30 May 2013
Professor Ken Grattan Professor Tong Sun Limestone follow on Engineering and Physical Sciences Research Council £88,042 1 April 2011 31 May 2012
Professor Tong Sun Professor Ken Grattan Advanced corrosion monitoring for marine and civil infrastructure - bringin new technology closer to market Engineering and Physical Sciences Research Council £110,125 6 January 2011 5 January 2014
Professor Ken Grattan Professor Tong Sun Smart repair: strategies using advanced metrology for enhanced structural health monitoring Engineering and Physical Sciences Research Council £320,725 1 July 2010 20 June 2013
Professor Tong Sun Professor Ken Grattan, Professor Peter Ayton, Dr Gavin Smith The smell of fear: feasibility study on the correlation of human smell and abnormal behaviour Engineering and Physical Sciences Research Council £94,924 1 November 2009 30 October 2011
Professor Aziz Rahman   FETD code for 2-D metamaterials   £30,000 1 October 2009 31 March 2010
Professor Tong Sun   Development of a novel optical fibre sensor platform for potential industrial applications Royal Academy of Engineering £54,367 1 October 2009 30 September 2010
Professor Aziz Rahman Professor Ken Grattan Nanophotonics and plasmonics British Council £39,980 1 April 2009 31 December 2011
Professor Aziz Rahman Professor Ken Grattan High-speed modulators British Council £39,980 1 April 2009 31 December 2011
Professor Tong Sun   Cargo Screening Ferret Engineering and Physical Sciences Research Council £192,986 1 October 2008 30 March 2012

Portrait of Azizur Rahman

Professor Azizur Rahman

Potential research student projects

Fibre Optic Sensors for Structural Health Monitoring

Professors K T V Grattan and Tong Sun

Structural Health Monitoring (SHM), whether in buildings, bridges or in other types of structure has become increasingly important as a means to monitor the ‘health’ of the structure, to become aware of internal damage or decay before surface effects show or to schedule maintenance.  Conventional methods of monitoring are often inadequate due to the difficulties in either sourcing or incorporating sensors in the structure.  This project seeks to develop new types of SHM systems using fibre optic sensors which can be integrated into the structure itself, either when it is made or retrofitted.  The project is highly interdisciplinary and bridge between civil and structural engineering, materials science, photonics and optics.  The aim is to create, evaluate and optimize sensors and to undertake field testing in association with partners in the UK and internationally.  The work is supported by funding from UKIERI through the British Council.

High temperature fibre optic sensors

Professors K T V Grattan and Tong Sun

Conventional sensors are often limited in the extent to which they can be used at elevated temperatures due to damage and failure of the device.  The temperatures at which many processes in industry operate has been increasing and in certain sectors, such as aerospace, temperatures well over 1000°C are common.  Operation in this region calls for a new class of sensors and optical fibre-based techniques can be developed to deal with the measurement of key parameters such as temperature itself, pressure, strain and chemical parameters.  This is done through the use of either exotic glass fibres or fibres based on sapphire, for example.  The project seeks to design and develop a number of such sensors, to evaluate their characteristics for operation at such high temperatures and to compare performance with conventional devices.  The project is supported by the EU Clean Skies funding scheme, linking to several partners in Europe and the UK.

Fibre Optic based chemical sensors for heavy metals monitoring

Professors Tong Sun and K T V Grattan

Sensors for a variety of chemical measurements are increasingly needed in industry today and greater reliability and accuracy as well as reduced sensitivity to other measurands, be they physical or chemical is important.  Many conventional chemical sensors, such as for toxic gases or environmental pollutants are inadequate to deal with the demands of meeting legislative requirements or long term, in situ operation – many current techniques use sampling techniques which are inherently prone to error.  This project seeks to use synthetic chemical techniques to create new coatings which can be bound to optical fibre, to create sensors which can detect a number of toxic heavy metals, such as mercury and cadmium, especially in soil samples.  The aim is for a fibre sensor system that can be distributed over several kilometres in length and monitor these toxic substances whether they are underground or on the surface.  The project is supported by the EU through the POLLINS project and is undertaken with partners across Europe who are involved.

Fibre optic based sensors for security and safety applications

Professors Tong Sun and K T V Grattan

Enhanced security, both personal and societal, is an area of increasing focus and an area where it is clear that new techniques are needed for better monitoring.  This project focuses on one aspect of such security through the development of sensors for the detection of illicit drugs in society.  The work seeks to develop a fibre optic sensor that is reliable and accurate, that can be used in the field and that is capable of providing selective measurement of cocaine, in the presence of a number of ‘cutting agents’ that are widely used.  The sensor development will focus on the synthesis or suitable coating using molecular imprinted polymer techniques to provide that selectivity and yet allow for a light weight, rapid response and secure device.  The work is supported by the Home Office in the UK.

Silicon Photonics

Professor B M A Rahman and Dr Arti Agrawal

With the rapid development of silicon CMOS technology for semiconductor industries, there is significant research interests to develop silicon photonics. The large index contrast allows sub-micron size waveguides and very compact bends, and these properties can be exploited to increase functionality, reliability of a photonics chip and also reduce the cost. However, designs of silicon photonic devices are also challenging as modes are fully hybrid and require very fine spatial resolution for their simulations. The Photonics Modelling Group has developed fully-vectorial rigorous numerical methods for photonic devices using computationally efficient finite element method and has already reported designs of silicon-based polarization splitters, polarization rotators, slots waveguides, and bio-sensors. New PhD students are sought to continue work on the development of slot waveguides, high-speed modulators, polarization diversity designs, more efficient solar cells and improved coupler designs in silicon.

Nonlinear Photonics

Professors B M A Rahman and K T V Grattan

The minute nonlinear properties of optical materials are exploited to design exotic photonic devices. The Photonics Modelling Group has developed fully-vectorial rigorous numerical methods for photonic devices using computationally efficient finite element method and has already reported designs of second harmonic generations, high-speed modulators, supercontinuum generations and stimulated Brillion scattering in optical waveguides. New PhD students are sought to extend these works for the development signal generation in mid-infrared and THz frequency regions and development of better distributed SBS sensors.

Photonic Crystal Fibres

Dr Arti Agrawal and Professor B M A Rahman

The development of low-loss optical fibres has contributed towards the revolution of Photonics. Following that earlier invention another major improvement in optical waveguiding has been the concept of photonic crystal fibres (PCF). We have developed accurate computer codes to analyse such complex microstructures and already reported on the designs of PCFs for both optical and THz wave guidance. We have also reported on the enhancement of modal birefringence by introducing asymemtry, reduction of THz modal loss by introducing porous core, introducing defect-core for sensing applications and a novel concept of quasi-crystal for better control of their spot-size and dispersion properties. We would like to have new PhD students to work on the development of new signal sources by tailoring its dispersion properties and novel sensors.

Non-Invasive Measurement of Cholesterol in Human Blood by Electrical Impedance Technique

Professor S H Khan

The prime topic of the research is to develop theoretical basis, establish proof of principle and build a technology product demonstrator of a novel instrument sensor for non-invasive measurement of total blood cholesterol based on electrical impedance technique. Using detail numerical FE modelling results, an experimental prototype is to be designed and built to validate and refine the FE models and obtain realistic bio-impedance data by experimental studies. This will then act as a prototype sensor sub-system for a novel instrument for non-invasive measurement of blood cholesterol.

Development of High-Speed, Long-Lifetime and Large-Force Electromagnetic Actuators Based on Smart Alloys

Professor S H Khan

This project involves the development of novel electromagnetic (EM) actuator valves based on magnetic shape memory (MSM) smart alloys. The current state-of-the-art, based on EM solenoid technology is ultimately restricted to less than desired lifetime due to inherent mechanical limitations. For further extension of lifetime (10-15 billion cycles), a novel and a step change in the technological solution is needed. To address this issue, the research focuses on the development of conceptually novel actuator valve based on MSM alloys. This would be a major development in an area of smart materials technology that has enormous potential to be used in a wide technology area where high-speed multibillion-cycle lifetime is needed (e.g. bulk food sorting, aerospace, automobile fuel injection, anaesthetic fluid delivery, etc.).

Mathematical Modelling and Design of Current and Voltage Sensors in Non-Conventional Instrument Transformers (NCIT) Using Smart Materials

Professor S H Khan

Instrument transformers are an integral part of power networks for highly accurate and reliable measurement of primary (line) current and voltages. Conventional instrument transformers with traditional current and voltage sensing are finding it increasingly difficult to cope with the demands and requirements of modern ‘digital’ power grids, especially smart grids. To address these issues non-conventional instrument transformers (NCIT) have been developed in recent years. This research proposes a novel approach for current measurement in NCIT using a sensor concept based on magnetic shape memory (MSM) smart alloys, which change shape under magnetic field.

The ‘Internet of things’

Dr F Surre

The aim of this project is to explore the research potential around the ‘internet of things’, looking at the fusion of research, enterprise and learning in this environment.

Publications

Zhang, Z., Wu, Y., Sun, Z., Song, H., Jia, M., Zong, H. & Li, Y. (2017). Experimental research on multichannel discharge circuit and multi-electrode plasma synthetic jet actuator. Journal of Physics D: Applied Physics, 50(16), 165205.. doi: 10.1088/1361-6463/aa6372

Shi, S., Li, H., Fabian, M., Sun, T., Grattan, K. T. V., Xu, D., Basheer, P.A.M. & Bai, Y. (2017). Alkali-activated Fly Ash Manufactured with Multi-stage Microwave Curing. In: Proceedings of the Fourth International Conference on Sustainable Construction Materials and Technologies. . CreateSpace Independent Publishing Platform. ISBN 978-1543111583

Sun, Z. & Bruecker, C. (2017). Investigation of the Vortex Ring Transition using Scanning Tomo-PIV. Experiments in Fluids, 58, 36.. doi: 10.1007/s00348-017-2322-1

Wu, F., Qian, J., Wu, W., Ye, Y., Sun, Z., Xu, B., Yang, X., Xu, Y., Zhang, J. & Chen, R. (2017). Boron-doped microporous nano carbon as cathode material for high-performance Li-S batteries. Nano Research, 10(2), pp. 426-436. doi: 10.1007/s12274-016-1303-7

Alwis, L., Bustamante, H., Bremer, K., Roth, B., Sun, T. & Grattan, K. T. V. (2017). A pilot study: Evaluation of sensor system design for optical fibre humidity sensors subjected to aggressive air sewer environment. In: 2016 IEEE SENSORS. . IEEE. ISBN 9781479982875

Nguyen, T.H., Wren, S., Sun, T. & Grattan, K. T. V. (2017). Development of a fiber-optic chemical sensor for the detection of cadmium. Proceedings of IEEE Sensors, doi: 10.1109/ICSENS.2016.7808852

Zhang, Z., Wu, Y., Jia, M., Song, H., Sun, Z., Zong, H. & Li, Y. (2017). The multichannel discharge plasma synthetic jet actuator. Sensors and Actuators A: Physical, 253, pp. 112-117. doi: 10.1016/j.sna.2016.11.011

Aming, A., Uthman, M., Chitaree, R., Mohammed, W. S. & Rahman, B. M. (2016). Design and Characterization of Porous Core Polarization Maintaining Photonic Crystal Fiber for THz Guidance. Journal of Lightwave Technology, 34(23), pp. 5583-5590. doi: 10.1109/JLT.2016.2623657

Eskin, M., Kujan, O., Voracek, M., Shaheen, A., Carta, M. G., Sun, J-M., Flood, C., Poyrazli, S., Janghorbani, M., Yoshimasu, K., Mechri, A., Khader, Y., Aidoudi, K., Bakhshi, S., Harlak, H., Ahmead, M., Moro, M. F., Nawafleh, H., Phillips, L., Abuderman, A., Tran, U. S. & Tsuno, K. (2016). Cross - national comparisons of attitudes towards suicide and suicidal persons in university students from 12 countries. Scandinavian Journal of Psychology, 57(6), pp. 554-563. doi: 10.1111/sjop.12318

Ghosh, S. & Rahman, B. M. (2016). An Innovative Straight Resonator Incorporating a Vertical Slot as an Efficient Bio-Chemical Sensor. IEEE Journal on Selected Topics in Quantum Electronics, 23(2), doi: 10.1109/JSTQE.2016.2630299

Bernal, O.D., Seat, H.C., Zabit, U., Surre, F. & Bosch, T. (2016). Robust Detection of Non-Regular Interferometric Fringes From a Self-Mixing Displacement Sensor Using Bi-Wavelet Transform. IEEE Sensors Journal, 16(22), pp. 7903-7910. doi: 10.1109/JSEN.2016.2599702

Wang, J., Zhao, L., Liu, T., Li, Z., Sun, T. & Grattan, K. T. V. (2016). Novel Negative Pressure Wave-based Pipeline Leak Detection System Using Fiber Bragg Grating-based Pressure Sensors. Journal of Lightwave Technology, doi: 10.1109/JLT.2016.2615468

Soudi, S. & Rahman, B. M. (2016). Design of a Compact Polarization Splitter by Using Identical Coupled Silicon Nanowires. Journal of Lightwave Technology, 34(17), pp. 4169-4178. doi: 10.1109/JLT.2016.2577341

Pan, C. & Rahman, B. M. (2016). High-Sensitivity Polarization-Independent Biochemical Sensor Based on Silicon-on-Insulator Cross-Slot Waveguide. IEEE Journal of Selected Topics in Quantum Electronics, 23(2), doi: 10.1109/JSTQE.2016.2594094

Vidakovic, M., Armakolas, I., Sun, T., Carlton, J. & Grattan, K. T. V. (2016). Fibre Bragg Grating-based Acoustic Sensor Array for Improved Condition Monitoring of Marine Lifting Surfaces. Journal of Lightwave Technology, 34(18), pp. 4336-4342. doi: 10.1109/JLT.2016.2601122

McBain, H. B., Begum, S., Rahman, S. & Mulligan, K. (2016). Barriers and enablers to self-titration of insulin in adults with type 2 diabetes: a qualitative study. Diabetic Medicine, doi: 10.1111/dme.13196

Barh, A., Varshney, R. K., Pal, B. P., Agrawal, G. P. & Rahman, B. M. (2016). Design of a Polymer-Based Hollow-Core Bandgap Fiber for Low-Loss Terahertz Transmission. IEEE Photonics Technology Letters, 28(15), pp. 1703-1706. doi: 10.1109/LPT.2016.2544198

Soltanian, M. R. K., Sharbirin, A. S., Ariannejad, M. M., Amiri, I. S., De La Rue, R. M., Brambilla, G., Rahman, B. M., Grattan, K. T. V. & Ahmad, H. (2016). Variable Waist-Diameter Mach-Zehnder Tapered-Fiber Interferometer as Humidity and Temperature Sensor. IEEE Sensors Journal, 16(15), pp. 5987-5992. doi: 10.1109/JSEN.2016.2573961

Mishra, J. K., Rahman, B. M. & Priye, V. (2016). Rectangular Array Multicore Fiber Realizing Low Crosstalk Suitable for Next-Generation Short-Reach Optical Interconnects With Low Misalignment Loss. IEEE Photonics Journal, 8(4), doi: 10.1109/JPHOT.2016.2591002

Corlho, L., Placidi, M., Atkin, C.J. & Sun, Z. (2016). Experimental Investigation of a Handley Page Triple Slotted Aerofoil. Paper presented at the 2016 Applied Aerodynamics Conference: Evolution & Innovation Continues - The Next 150 Years of Concepts, Design and Operations, 19-21 July 2016, Bristol, UK.

Sun, Z. & Bruecker, C. (2016). PIV Study of Flow Separations at a Forward-Facing Step using Long-Range Microscope. Paper presented at the 2016 Applied Aerodynamics Conference: Evolution & Innovation Continues - The Next 150 Years of Concepts, Design and Operations, 19-21 Jul 2016, Bristol, UK.

Vidakovic, M., McCague, C., Armakolas, I., Sun, T., Carlton, J. & Grattan, K. T. V. (2016). Fibre Bragg Grating-based Cascaded Acoustic Sensors for Potential Marine Structural Condition Monitoring. Journal of Lightwave Technology, doi: 10.1109/JLT.2016.2587161

Alwis, L., Bustamante, H., Bremer, K., Roth, B., Sun, T. & Grattan, K. T. V. (2016). Evaluation of the durability and performance of FBG-based sensors for monitoring moisture in an aggressive gaseous waste sewer environment. Journal of Lightwave Technology, doi: 10.1109/JLT.2016.2593260

Mishra, J. K., Priye, V. & Rahman, B. M. (2016). Augmenting data rate performance for higher order modulation in triangular index profile multicore fiber interconnect. Optics Communications, 371, pp. 40-46. doi: 10.1016/j.optcom.2016.03.038

Sun, Z., Bruecker, C. & Pointz, B. (2016). Transition of A Vortex Ring Visualized by 3D Scanning TomoPIV. Paper presented at the 18th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 4-7 Jul 2016, Lisbon, Portugal.

Agrawal, A. & Cabrera-Espana, F. (2016). Hut-like pillar array Si Solar Cells. Solar Energy, 132, pp. 357-362. doi: 10.1016/j.solener.2016.03.026

Raghuwanshi, S.K. & Rahman, B. M. (2016). Modeling of single mode optical fiber having a complicated refractive index profile by using modified scalar finite element method. Optical and Quantum Electronics, 48, 360.. doi: 10.1007/s11082-016-0632-9

Biffis, E., Blake, D., Pitotti, L. & Sun, A. (2016). The Cost of Counterparty Risk and Collateralization in Longevity Swaps. Journal Of Risk And Insurance, 83(2), pp. 387-419. doi: 10.1111/jori.12055

Siaudinyte, L., Kilikevicius, A., Sabaitis, D. & Grattan, K. T. V. (2016). Modal analysis and experimental research into improved centering-leveling devices. Measurement, 88, pp. 9-17. doi: 10.1016/j.measurement.2016.01.044

Jiang, W., Kohli, N., Sun, X. & Rahman, B. M. (2016). Multi-Poly-Silicon-Layer-Based Spot-Size Converter for Efficient Coupling Between Silicon Waveguide and Standard Single-Mode Fiber. IEEE Photonics Journal, 8(3), doi: 10.1109/JPHOT.2016.2577594

Pan, C. & Rahman, B. M. (2016). Compact Polarization-Independent MMI-Based 1 x 2 Power Splitter Using Metal-Cap Silicon-on-Insulator Waveguide. IEEE Photonics Journal, 8(3), doi: 10.1109/JPHOT.2016.2564926

Fabian, M., Jia, Y., Shi, S., McCague, C., Bai, Y., Sun, T. & Grattan, K. T. V. (2016). Optimization of the accelerated curing process of concrete using a fibre Bragg grating-based control system and microwave technology. Proceedings of SPIE, 9916, 99160P. doi: 10.1117/12.2236856

Nguyen, T.H., Sun, T. & Grattan, K. T. V. (2016). Surface plasmon resonance based fibre-optic chemical sensor for the detection of cocaine. Proceedings of SPIE, 9916, 991612.. doi: 10.1117/12.2236938

Pan, C. & Rahman, B. M. (2016). Accurate Analysis of the Mode (de)multiplexer Using Asymmetric Directional Coupler. Journal of Lightwave Technology, 34(9), pp. 2288-2296. doi: 10.1109/JLT.2016.2530852

Rahman, B. M. & Rahman, M. M. (2016). Characterization of acousto-optical interaction in planar silica optical waveguide by the finite element method. Journal of the Optical Society of America B, 33(5), pp. 810-818. doi: 10.1364/JOSAB.33.000810

Siaudinyte, L. & Grattan, K. T. V. (2016). Uncertainty evaluation of trigonometric method for vertical angle calibration of the total station instrument. Measurement, 86, pp. 276-282. doi: 10.1016/j.measurement.2015.10.037

Viphavakit, C., Boonruang, S., Themistos, C., Komodromos, M., Mohammed, W. S & Rahman, B. M. (2016). Surface plasmon resonance-enhanced light interaction in an integrated ormocomp nanowire. Optical and Quantum Electronics, 48(5), doi: 10.1007/s11082-016-0499-9

Alwis, L., Sun, T. & Grattan, K. T. V. (2016). Developments in optical fibre sensors for industrial applications. Optics and Laser Technology, 78(A), pp. 62-66. doi: 10.1016/j.optlastec.2015.09.004

Barh, A., Pal, B. P., Agrawal, G. P., Varshney, R. K. & Rahman, B. M. (2016). Specialty Fibers for Terahertz Generation and Transmission: A Review. IEEE Journal of Selected Topics in Quantum Electronics, 22(2), 8500215-.. doi: 10.1109/JSTQE.2015.2494537

Javdani, S., Fabian, M., Carlton, J., Sun, T. & Grattan, K. T. V. (2016). Underwater free-vibration analysis of full-scale marine propeller using a Fibre Bragg Grating-based sensor system. IEEE Sensors Journal, 16(4), pp. 946-953. doi: 10.1109/JSEN.2015.2490478

Karim, M. R. & Rahman, B. M. (2016). Ultra-broadband mid-infrared supercontinuum generation using chalcogenide rib waveguide. Optical and Quantum Electronics, 48(3), doi: 10.1007/s11082-016-0458-5

Thu, H. N., Venugopalan, T., Sun, T. & Grattan, K. T. V. (2016). Intrinsic Fiber Optic pH Sensor for Measurement of pH Values in the Range of 0.5-6. IEEE Sensors Journal, 16(4), pp. 881-887. doi: 10.1109/JSEN.2015.2490583

Eskin, M., Voracek, M., Tran, T., Sun, J., Janghorbani, M., Giovanni Carta, M., Francesca Moro, M., Yoshimasu, K., Tsuno, K., Khader, Y., Idhail, J., Nawafleh, H., Hamdan, M., Shaheen, A., Kujan, O., Mechri, A., Flood, C., Phillips, L., Poyrazi, S. & Harlak, H. (2016). Suicidal Behavior and Psychological Distress in University Students: A 12-Nation Study. Archives of Suicide Research. Archives of Suicide Research, 20(3), pp. 369-388. doi: 10.1080/13811118.2015.1054055

Rahman, Mohammed Moseeur (2016). Full-vectorial study of light and sound interactions in low and high index contrast silica waveguides. (Unpublished Doctoral thesis, City University London)

Wang, Y., Sun, T., Fabian, M., Grattan, K. T. V., Forman, T. & Mutschler, R. (2016). Development of Optical Fibre Humidity Sensors for Assessing the Quality of Housing Insulation Materials. Paper presented at the 2016 15th International Conference on Optical Communications and Networks (ICOCN), 24-27 Sep 2016, Hangzhou, China.

Karim, M. R., Rahman, B. M., Azabi, Y. O., Agrawal, A. & Agrawal, G. P. (2015). Ultra-broadband mid-infrared supercontinuum generation through dispersion engineering of chalcogenide microstructured fibers. Journal of the Optical Society of America B, 32(11), pp. 2343-2351. doi: 10.1364/JOSAB.32.002343

Mishra, J. K., Priye, V. & Rahman, B. M. (2015). Error probability performance of a short-reach multicore fiber optical interconnect transmission system. Optics Letters, 40(19), pp. 4556-4559. doi: 10.1364/OL.40.004556

Wren, S., Sun, T. & Grattan, K. T. V. (2015). A Fluorescent Optical Fibre Chemosensor for Mercury Detection. 24th International Conference on Optical Fibre Sensors, 9634, 96346C. doi: 10.1117/12.2194588

Sun, T., Wren, S., Nguyen, H. & Grattan, K. T. V. (2015). A suite of optical fibre-based chemical sensors for environmental monitoring. Paper presented at the 2015 14th International Conference on Optical Communications and Networks (ICOCN), 3-5 Jul 2015, Nanjing, China.

Leandro, D., Ams, M., Lopez-Amo, M., Sun, T. & Grattan, K. T. V. (2015). Simultaneous Measurement of Strain and Temperature Using a Single Emission Line. Journal of Lightwave Technology, 33(12), pp. 2426-2431. doi: 10.1109/JLT.2014.2374531

Wren, S. P., Piletsky, S. A., Karim, K., Gascoine, P., Lacey, R., Sun, T. & Grattan, K. T. V. (2015). Computational Design and Fabrication of Optical Fibre Fluorescent Chemical Probes for the Detection of Cocaine. Journal of Lightwave Technology, 33(12), pp. 2572-2579. doi: 10.1109/JLT.2015.2389036

Zhou, B., Yang, S., Sun, T. & Grattan, K. T. V. (2015). A Novel Wireless Mobile Platform to Locate and Gather Data From Optical Fiber Sensors Integrated Into a WSN. IEEE Sensors Journal, 15(6), pp. 3615-3621. doi: 10.1109/JSEN.2015.2396040

Sun, Z. (2015). Micro Vortex Generators for Boundary Layer Control: Principles and Applications. International Journal of Flow Control, 7(1-2), doi: 10.1260/1756-8250.7.1-2.67

Viphavakit, C., Komodromos, M., Themistos, C., Mohammed, W. S., Kalli, K. & Rahman, B. M. (2015). Optimization of a horizontal slot waveguide biosensor to detect DNA hybridization. Applied Optics, 54(15), pp. 4881-4888. doi: 10.1364/AO.54.004881

Barh, A., Varshney, R. K., Agrawal, G. P., Rahman, B. M. & Pal, B. P. (2015). Plastic fiber design for THz generation through wavelength translation. Optics Letters, 40(9), pp. 2107-2110. doi: 10.1364/OL.40.002107

Yao, S., Chen, S., Pal, A., Bremer, K., Guan, B. O., Sun, T. & Grattan, K. T. V. (2015). Compact Tm-doped fibre laser pumped by a 1600 nm Er-doped fibre laser designed for environmental gas sensing. Sensors and Actuators A Physical, 226(May), pp. 11-20. doi: 10.1016/j.sna.2015.02.019

Karim, M. R., Rahman, B. M. & Agrawal, G. P. (2015). Mid-infrared supercontinuum generation using dispersion-engineered Ge11.5As24Se64.5 chalcogenide channel waveguide. Optics Express, 23(5), pp. 6903-6914. doi: 10.1364/OE.23.006903

Kejalakshmy, N., Grattan, K. T. V. & Rahman, B. M. (2015). Investigation of the Optical Modal Properties of Al+3 Doped ZnO-Coated Au Waveguide for Gas Sensing Applications Using the Finite Element Method. IEEE Sensors Journal, 16(5), pp. 1176-1181. doi: 10.1109/JSEN.2015.2498943

Rahman, B. M., Uthman, M., Quadir, A., Grattan, K. T. V., Markides, C. & Themistos, C. (2015). Emergence of THz technologies and design and optimisation low-loss waveguides and devices. In: Electrical and Computer Engineering (ICECE), 2014 International Conference on. (pp. 389-393). IEEE. ISBN 9781479941667

Grattan, K. T. V., Jia, Y., Gutfreund, E., Savvides, S., Shi, S., Bai, Y., Fabian, M., Sun, T. & McCague, C. (2015). Densification of Fresh Concrete by Microwave. Paper presented at the 35th Cement and Concrete Science Conference, 26-28 Aug 2015, Aberdeen, Scotland.

Rahman, M. E. (2015). Integrated full vectorial FEM, FDTD and diffraction integrals in characterising visible light propagation through lossy biological media. (Unpublished Doctoral thesis, City, University of London)

Rahman, Md. Moktadir (2015). Development of an intelligent decision supporting home energy management system. (Unpublished Masters thesis, City University London)

Thotath, B., Nguyen, T.H., Zhang, W. H., Baxter, G., Sun, T., Collins, S. & Grattan, K. T. V. (2015). Intrinsic determination of pH using a barycentre algorithm to characterise fluorescence from an optical fibre sensor. Paper presented at the Australian and New Zealand Conference on Optics and Photonics 2015 (ANZCOP 2015), 29 Nov - 3 Dec 2015, Adelaide, Australia.

Karim, M.R, Rahman, B. M. & Agrawal, G. P. (2014). Dispersion engineered Ge11.5As24Se64.5 nanowire for supercontinuum generation: A parametric study. Optics Express, 22(25), pp. 31029-31040. doi: 10.1364/OE.22.031029

Bremer, K., Meinhardt-Wollweber, M., Thiel, T., Werner, G., Sun, T., Grattan, K. T. V. & Roth, B. (2014). Sewerage tunnel leakage detection using a fibre optic moisture-detecting sensor system. Sensors and Actuators A: Physical, 220, pp. 62-68. doi: 10.1016/j.sna.2014.09.018

Soudi, S. & Rahman, B. M. (2014). Design of compact polarization rotator using simple silicon nanowires. Applied Optics, 53(34), pp. 8071-8077. doi: 10.1364/AO.53.008071

Sriratanavaree, S., Rahman, B. M., Leung, D. M. H., Kejalakshmy, N. & Grattan, K. T. V. (2014). Full-Vectorial Finite-Element Analysis of Acoustic Modes in Silica Waveguides. IEEE Journal of Quantum Electronics, 50(12), pp. 1006-1013. doi: 10.1109/JQE.2014.2364199

Javdani, S., Fabian, M., Ams, M., Carlton, J., Sun, T. & Grattan, K. T. V. (2014). Fiber bragg grating-based system for 2-D analysis of vibrational modes of a steel propeller blade. Journal of Lightwave Technology, 32(23), pp. 3991-3997. doi: 10.1109/JLT.2014.2361631

Viphavakit, C., Atthi, N., Boonruang, S., Themistos, C., Komodromos, M., Mohammed, W. S. & Rahman, B. M. (2014). Realization of a polymer nanowire optical transducer by using the nanoimprint technique. Applied Optics, 53(31), pp. 7487-7497. doi: 10.1364/AO.53.007487

Rahman, B. M., Rahman, M. M., Sriratanavaree, S., Kejalakshmy, N. & Grattan, K. T. V. (2014). Rigorous analysis of the transverse acoustic modes in optical waveguides by exploiting their structural symmetry. Applied Optics, 53(29), pp. 6797-6803. doi: 10.1364/AO.53.006797

Cao, J., Sun, T. & Grattan, K. T. V. (2014). Gold nanorod-based localized surface plasmon resonance biosensors: A review. Sensors and Actuators, B: Chemical, 195(May), pp. 332-351. doi: 10.1016/j.snb.2014.01.056

Raoufi, N., Surre, F., Rajarajan, M., Sun, T. & Grattan, K. T. V. (2014). Optical sensor for pH monitoring using a layer-by-layer deposition technique emphasizing enhanced stability and re-usability. Sensors and Actuators B Chemical, 195, pp. 692-701. doi: 10.1016/j.snb.2014.01.080

Wang, X., Yan, Y., Sun, Z. & Liu, C. (2014). The Vortical Structures in the Rear Separation and Wake Produced by a Supersonic Micro-Ramp. Flow, Turbulence and Combustion, 93(1), pp. 25-36. doi: 10.1007/s10494-014-9531-y

Sun, K., Baronchelli, A. & Perra, N. (2014). Contrasting Effects of Strong Ties on SIR and SIS Processes in Temporal Networks. The European Physical Journal B, 88, p. 326. doi: 10.1140/epjb/e2015-60568-4

Sriratanavaree, S., Rahman, B. M., Leung, D. M. H., Kejalakshmy, N. & Grattan, K. T. V. (2014). Rigorous characterization of acoustic-optical interactions in silicon slot waveguides by full-vectorial finite element method. Optics Express, 22(8), pp. 9528-9537. doi: 10.1364/OE.22.009528

Wang, X., Yan, Y., Sun, Z. & Liu, C. (2014). LES investigation into the generation of momentum deficits in the supersonic wake of a micro-ramp. Journal of Mechanical Science and Technology, 28(4), pp. 1327-1337. doi: 10.1007/s12206-013-1164-x

Wren, S., Nguyen, T.H., Gascoine, P., Lacey, R., Sun, T. & Grattan, K. T. V. (2014). Preparation of novel optical fibre-based Cocaine sensors using a molecular imprinted polymer approach. Sensors and Actuators, B: Chemical, 193, pp. 35-41. doi: 10.1016/j.snb.2013.11.071

Rahman, B. M., Markides, C., Uthman, M., Quadir, A., Kejalakshmy, N. & Themistos, C. (2014). Characterization of low-loss waveguides and devices for terahertz radiation. Optical Engineering (OE), 53(3), 031210. doi: 10.1117/1.OE.53.3.031210

McCague, C., Fabian, M., Karimi, M., Bravo, M., Jaroszewicz, L. R., Mergo, P., Sun, T. & Grattan, K. T. V. (2014). Novel Sensor Design Using Photonic Crystal Fibres for Monitoring the Onset of Corrosion in Reinforced Concrete Structures. Journal of Lightwave Technology, 32(5), pp. 891-896. doi: 10.1109/JLT.2013.2293120

Asad, H., Jones, K. & Surre, F. (2014). Verifying Robust Frequency Domain Properties of Non Linear Oscillators using SMT. In: W. Pleskacz, M. Renovell, D. Kasprowicz, L. Sekanina & S. Bernard (Eds.), 17th International Symposium on Design and Diagnostics of Electronic Circuits & Systems. (pp. 306-309). IEEE. ISBN 978-1-4799-4560-3

Bremer, K., Wollweber, M., Guenther, S., Werner, G., Sun, T., Grattan, K. T. V. & Roth, B. (2014). Fibre optic humidity sensor designed for highly alkaline environments. Proceedings of SPIE - The International Society for Optical Engineering, 9157, A4. doi: 10.1117/12.2059637

Viphavakit, C., Atthi, N., Boonruang, S., Themistos, C., Mohammed, W. S., Kalli, K., Rahman, B. M. & Komodromos, M. (2014). Characterization of polymer nanowires fabricated using the nanoimprint method. Proceedings of SPIE, 9126, doi: 10.1117/12.2052276

Agrawal, A., Oates, A. & Cabrera-Espana, F. (2014). Fabrication and characterisation of Si micropillar PV structures. Materials Research Innovations, 18(7), pp. 500-504. doi: 10.1179/1433075X14Y.0000000244

Ams, M., Pal, A., Williams, R.J., Sen, R., Withford, M.J., Sun, T. & Grattan, K. T. V. (2014). Fibre Bragg Grating Sensors for Radiation Insensitive Measurements. Paper presented at the OECC/ACOFT 2014, 06-07-2014 - 10-07-2014, Melbourne, Australia.

Bai, Y., Shi, S., Fabian, M., Arms, M, Sun, T, Grattan, K.T.V., Li, H., Xu, D.L. & Basheer, P.A.M. (2014). Microwave Curing Techniques for Manufacturing Alkali-activated Fly Ash. Paper presented at the 34th Annual Cement and Concrete Science Conference, 14-16 Sep 2014, Sheffield, UK.

He, Y., Lee, S-J., Lukas, A. & Sun, C. (2014). Heterotic Model Building: 16 Special Manifolds. Journal of High Energy Physics, 2014(6), p. 77. doi: 10.1007/JHEP06(2014)077

He, Y., Matti, C. & Sun, C. (2014). The Scattering Variety. Journal of High Energy Physics, 2014(10), p. 135. doi: 10.1007/JHEP10(2014)135

Nguyen, T.H., Venugopala, T., Chen, S., Sun, T., Grattan, K. T. V., Taylor, S.E., Basheer, P.A.M. & Long, A.E. (2014). Fluorescence based fibre optic pH sensor for the pH 10-13 range suitable for corrosion monitoring in concrete structures. Sensors and Actuators, B: Chemical, 191, pp. 498-507. doi: 10.1016/j.snb.2013.09.072

Oates, A., Cabrera-Espana, F., Agrawal, A. & Reehal, H. S. (2014). Fabrication and characterisation of Si micropillar PV structures. Energy Materials, 9(4), pp. 500-504.

Sun, Z., Longmire, E. K. & Krizan, D. (2014). Interactions of copepods with fractal-grid generated turbulence based on Tomo-PIV and 3D-PTV. Paper presented at the 67th Annual Meeting of the APS Division of Fluid Dynamics, 23-11-2014 - 25-11-2014, San Francisco, USA.

Sun, Z., Scarano, F., van Oudheusden, B. W., Schrijer, F. F. J., Yan, Y. & Liu, C. (2014). Numerical and experimental investigations of the supersonic microramp wake. AIAA Journal, 52(7), pp. 1518-1527. doi: 10.2514/1.J052649

Sun, Z., Schrijer, F. F. J., Scarano, F. & van Oudheusden, B. W. (2014). Decay of the supersonic turbulent wakes from micro-ramps. Physics of Fluids, 26(2), 025115. doi: 10.1063/1.4866012

Themistos, C., Rahman, B. M., Markides, C., Uthman, M., Quadir, A. & Kejalakshmy, N. (2014). Characterization of graphene-based devices for THz Systems. In: Terahertz Physics, Devices, and Systems VIII: Advanced Applications in Industry and Defense. . SPIE. ISBN 9781628410396

Ul Asad, Hafiz, Jones, K. & Surre, F. (2014). Verifying robust frequency domain properties of non linear oscillators using SMT. Paper presented at the 17th Symposium on Design & Diagnostics of Electronic Circuits & Systems, 23rd - 25th April 2014, Warsaw, Poland.

Wren, S., Piletsky, S, Karim, K., Gascoine, P., Lacey, R., Sun, T. & Grattan, K. T. V. (2014). Design and synthesis of a fluorescent molecular imprinted polymer for use in an optical fibre-based cocaine sensor. Proceedings of SPIE - The International Society for Optical Engineering, 9157, 91574W. doi: 10.1117/12.2059278

Zhou, B., Yang, S., Sun, T. & Grattan, K. T. V. (2014). A novel wireless mobile platform integrated with optical fibre sensors. Proceedings of SPIE - The International Society for Optical Engineering, 9157, doi: 10.1117/12.2059307

Barh, A., Rahman, B. M., Varshney, R. K. & Pal, B. P. (2013). Design and Performance Study of a Compact SOI Polarization Rotator at 1.55 mu m. Journal of Lightwave Technology, 31(23), pp. 3687-3693. doi: 10.1109/JLT.2013.2286859

Barh, A., Rahman, B. M., Varshney, R. K. & Pal, B. P. (2013). An efficient polarization converter for Mid-IR wavelength. Advanced Photonics 2013, JT3A.20. doi: 10.1364/IPRSN.2013.JT3A.20

Pal, A., Dhar, A., Sen, R., Ams, M., Sun, T. & Grattan, K. T. V. (2013). Radiation resistant optical fiber for FBG based sensing. Paper presented at the 2013 Workshop on recent Advances in Photonics (WRAP), 17-12-2013 - 18-12-2013, New Delhi, India.

Raoufi, N., Surre, F., Rajarajan, M., Sun, T. & Grattan, K. T. V. (2013). Fibre Optic pH Sensor Using Optimized Layer-by-Layer Coating Approach. IEEE Sensors Journal, 14(1), pp. 47-54. doi: 10.1109/JSEN.2013.2280283

Rahman, B. M. & Agrawal, A. (2013). Introduction. In: B. M. Rahman & A. Agrawal (Eds.), Finite Element Modeling Methods for Photonics. (pp. 1-19). London, UK: Artech House. ISBN 9781608075317

Grattan, K. T. V., Sun, T. & Khan, S. (2013). Ludwik Finkelstein and measurement - A challenge for the future. Measurement, 46(8), pp. 2990-2992. doi: 10.1016/j.measurement.2013.04.053

Wijeratne, I., Kejalakshmy, N., Rahman, B. M. & Grattan, K. T. V. (2013). Rigorous Full-Vectorial Beam Propagation Analysis of Second-Harmonic Generation in Zinc Oxide Waveguides. IEEE Photonics Journal, 5(2), .6100112. doi: 10.1109/JPHOT.2013.2256115

Surre, F., Sun, T. & Grattan, K. T. V. (2013). Fiber Optic Strain Monitoring for Long-Term Evaluation of a Concrete Footbridge Under Extended Test Conditions. IEEE Sensors Journal, 13(3), pp. 1036-1043. doi: 10.1109/JSEN.2012.2234736

Kabir, S., Rahman, B. M., Agrawal, A. & Grattan, K. T. V. (2013). Elimination of numerical dispersion from electromagnetic time domain analysis by using resource efficient finite element technique. Progress in Electromagnetics Research, 137, pp. 487-512. doi: 10.2528/PIER13012305

Markides, C., Themistos, C., Tanvir, H. M., Rahman, B. M. & Grattan, K. T. V. (2013). Multimode Interference 3 dB Splitters in Hollow Core Metallic Waveguides for Low-Loss THz Wave Transmission. IEEE Journal of Selected Topics in Quantum Electronics, 19(1), doi: 10.1109/JSTQE.2012.2215018

Rahman, B. M., Themistos, C., Tanvir, H. M., Uthman, M., Quadir, A. & Markides, C. (2013). Low-loss Waveguides for THz Guidance and Devices. Proceedings of SPIE, 8624, doi: 10.1117/12.2008201

Rahman, B. M., Uthman, M., Quadir, A., Kejalakshmy, N., Markides, C. & Themistos, C. (2013). Low-loss Waveguides and Devices for Compact THz Systems. Proceedings of SPIE, 8716, doi: 10.1117/12.2017622

Agrawal, A., Azabi, Y. O. & Rahman, B. M. (2013). Stacking the Equiangular Spiral. IEEE Photonics Technology Letters, 25(3), pp. 291-294. doi: 10.1109/LPT.2012.2236309

Agrawal, A., Tiwari, M., Azabi, Y. O., Janyani, V., Rahman, B. M. & Grattan, K. T. V. (2013). Ultrabroad supercontinuum generation in tellurite equiangular spiral photonic crystal fiber. Journal of Modern Optics, 60(12), pp. 956-962. doi: 10.1080/09500340.2013.825334

Alwis, L., Bremer, K., Sun, T. & Grattan, K. T. V. (2013). Analysis of the Characteristics of PVA-Coated LPG-Based Sensors to Coating Thickness and Changes in the External Refractive Index. IEEE Sensors Journal, 13(3), pp. 1117-1124. doi: 10.1109/JSEN.2012.2230534

Gonschior, C. P., Klein, K.-F., Heyse, D., Baumann, S., Sun, T. & Grattan, K. T. V. (2013). High power 405 nm diode laser fiber-coupled single-mode system with high long-term stability. Proceedings of SPIE - The International Society for Optical Engineering, 8605, doi: 10.1117/12.2003888

Gonschior, C. P., Klein, K.-F., Sun, T. & Grattan, K. T. V. (2013). Generation of periodic surface structures on silica fibre surfaces using 405 nm CW diode lasers. Journal of Non-Crystalline Solids, 361(1), pp. 106-110. doi: 10.1016/j.jnoncrysol.2012.11.004

Hanany, A., He, Y., Sun, C. & Sypsas, S. (2013). Superconformal Block Quivers, Duality Trees and Diophantine Equations. Journal of High Energy Physics, 2013(11), p. 17. doi: 10.1007/JHEP11(2013)017

Scott, R.H., Banerji, P., Chikermane, S., Srinivasan, S., Basheer, P.A.M., Surre, F., Sun, T. & Grattan, K. T. V. (2013). Commissioning and Evaluation of a Fiber-Optic Sensor System for Bridge Monitoring. IEEE Sensors Journal, 13(7), pp. 2555-2562. doi: 10.1109/JSEN.2013.2256599

Sun, H., Xu, H., Meskarian, R. & Wang, Y. (2013). Exact penalization, level function method, and modified cutting-plane method for stochastic programs with second order stochastic dominance constraints. SIAM Journal on Optimization (SIOPT), 23(1), pp. 602-631. doi: 10.1137/110850815

Viphavakit, C., Themistos, C., Komodromos, M., Kalli, K., Quadir, A. & Rahman, B. M. (2013). Dispersion characteristics of plasmonic waveguides for THz waves. Proceedings of SPIE, 8775, doi: 10.1117/12.2021785

Wren, S., Nguyen, T.H., Gascoine, P., Lacey, D., Sun, T. & Grattan, K. T. V. (2013). Preparation of a novel drug sensor using a molecular imprinted polymer approach. Proceedings of SPIE - The International Society for Optical Engineering, 8794, doi: 10.1117/12.2025839

Barh, A., Pal, B. P., Varshney, R. K. & Rahman, B. M. (2012). Design of a compact SOI polarization rotator for mid-IR application. CODEC 2012 - 5th International Conference on Computers and Devices for Communication, pp. 1-4. doi: 10.1109/CODEC.2012.6509320

Uthman, M., Rahman, B. M., Kejalakshmy, N., Agrawal, A. & Grattan, K. T. V. (2012). Design and Characterization of Low-Loss Porous-Core Photonic Crystal Fiber. IEEE Photonics Journal, 4(6), pp. 2315-2325. doi: 10.1109/JPHOT.2012.2231939

Pal, A., Sen, R., Bremer, K., Yao, S., Lewis, E., Sun, T. & Grattan, K. T. V. (2012). "All-fiber" tunable laser in the 2 mu m region, designed for CO2 detection. Applied Optics, 51(29), pp. 7011-7015. doi: 10.1364/AO.51.007011

Raoufi, N., Surre, F., Sun, T., Rajarajan, M. & Grattan, K. T. V. (2012). Wavelength dependent pH optical sensor using the layer-by-layer technique. Sensors and Actuators B Chemical, 169, pp. 374-381. doi: 10.1016/j.snb.2012.05.024

Themistos, C., Kalli, K., Komodromos, M., Markides, C., Quadir, A., Rahman, B. M. & Grattan, K. T. V. (2012). Low-loss multimode interference couplers for terahertz waves. Proceedings of SPIE, 8426, doi: 10.1117/12.925655

Sun, T., Grattan, K. T. V., Srinivasan, S., Basheer, P.A.M., Smith, B. J. & Viles, H. A. (2012). Building Stone Condition Monitoring Using Specially Designed Compensated Optical Fiber Humidity Sensors. IEEE Sensors Journal, 12(5), pp. 1011-1017. doi: 10.1109/JSEN.2011.2163504

Kumar, A., Rastogi, V., Agrawal, A. & Rahman, B. M. (2012). Birefringence analysis of segmented cladding fiber. Applied Optics, 51(15), pp. 3104-3108. doi: 10.1364/AO.51.003104

Torrisi, F., Hasan, T., Wu, W., Sun, Z., Lombardo, A., Kulmala, T. S., Hsieh, G-W., Jung, S., Bonaccorso, F., Paul, P. J., Chu, D. & Ferrari, A. C. (2012). Inkjet-Printed Graphene Electronics. ACS Nano, 6(4), pp. 2992-3006. doi: 10.1021/nn2044609

Karimi, M., Surre, F., Sun, T., Grattan, K. T. V., Margulis, W. & Fonjallaz, P. (2012). Theoretical Analysis of a Non-Symmetric Polarization-Maintaining Single-Mode Fiber for Sensor Applications. Journal of Lightwave Technology, 30(3), pp. 362-367. doi: 10.1109/JLT.2011.2178589

Degirmenci, E., Surre, F., Philippe, S., Maldonado-Basilio, R. & Landais, P. (2012). Improved Bend Waveguide Design for Terahertz Transmission. IEEE Transactions on Terahertz Science and Technology, 2(1), pp. 137-143. doi: 10.1109/TTHZ.2011.2177170

Nguyen, T.H., Hardwick, S., Sun, T. & Grattan, K. T. V. (2012). Intrinsic Fluorescence-Based Optical Fiber Sensor for Cocaine Using a Molecularly Imprinted Polymer as the Recognition Element. IEEE Sensors Journal, 12(1), pp. 255-260. doi: 10.1109/JSEN.2011.2158537

Agrawal, A., Kejalakshmy, N., Uthman, M., Rahman, B. M., Kumar, A. & Grattan, K. T. V. (2012). Ultra low bending loss equiangular spiral photonic crystal fibers in the terahertz regime. AIP Advances, 2, doi: 10.1063/1.4726055

Sun, Z., Schrijer, F. F. J., Scarano, F. & van Oudheusden, B. W. (2012). PIV investigation of the 3D instantaneous flow organization behind a micro-ramp in a supersonic boundary layer. Paper presented at the 28th International Symposium on Shock Waves, 17-07-2011 - 22-07-2011, Manchester, UK.

Sun, Z., Schrijer, F. F. J., Scarano, F. & van Oudheusden, B. W. (2012). The three-dimensional flow organization past a micro-ramp in a supersonic boundary layer. Physics of Fluids, 24(5), 055105. doi: 10.1063/1.4711372

Themistos, C., Kalli, K., Komodromos, M., Rahman, B. M. & Grattan, K. T. V. (2012). Low-loss multimode interference couplers for terahertz waves. Paper presented at the Conference on Microstructured and Specialty Optical Fibres, 17-04-2012 - 19-04-2012, Brussels, Belgium.

Uthman, M., Rahman, B. M., Kejalakshmy, N., Agrawal, A., Abana, H. & Grattan, K. T. V. (2012). Stabilized large mode area in tapered photonic crystal fiber for stable coupling. IEEE Photonics Journal, 4(2), pp. 340-349. doi: 10.1109/JPHOT.2012.2188788

Wijeratne, I. N. M., Kejalakshmy, N., Agrawal, A., Rahman, B. M. & Grattan, K. T. V. (2012). Numerical analysis of second harmonic generation in soft glass equiangular spiral photonic crystal fibers. IEEE Photonics Journal, 4(2), pp. 357-368. doi: 10.1109/JPHOT.2012.2186795

Karimi, M., Surre, F., Sun, T., Grattan, K. T. V., Margulis, W. & Fonjallaz, P. (2011). Directional Force Measurement Using Specialized Single-Mode Polarization-Maintaining Fibers. Journal of Lightwave Technology, 29(24), pp. 3611-3615. doi: 10.1109/JLT.2011.2167011

Azabi, Y. O., Agrawal, A., Kejalakshmy, N., Rahman, B. M. & Grattan, K. T. (2011). Equiangular spiral tellurite photonic crystal fiber for supercontinuum generation in mid-infrared. In: CLEO:2011 - Laser Applications to Photonic Applications. (JThB72). Optical Society of America. ISBN 978-1-55752-910-7

Rahman, B. M., Uthman, M., Kejalakshmy, N., Agrawal, A. & Grattan, K. T. V. (2011). Design of bent photonic crystal fiber supporting a single polarization. Applied Optics, 50(35), pp. 6505-6511. doi: 10.1364/AO.50.006505

Salim, S. G. R., Fox, N. P., Hartree, W. S., Woolliams, E. R., Sun, T. & Grattan, K. T. V. (2011). Stray light correction for diode-array-based spectrometers using a monochromator. Applied Optics, 50(26), pp. 5130-5138. doi: 10.1364/AO.50.005130

Tanvir, H. M., Rahman, B. M. & Grattan, K. T. V. (2011). Higher Order Lateral Mode Suppression Schemes for Edge Emitting Terahertz Quantum Cascade Laser Waveguides. IEEE Journal of Selected Topics in Quantum Electronics, 19(1), .8501106. doi: 10.1109/JSTQE.2012.2210149

Kejalakshmy, N., Agrawal, A., Aden, Y., Leung, D. M., Rahman, B. M. & Grattan, K. T. V. (2010). Characterization of silicon nanowire by use of full-vectorial finite element method.. Applied Optics, 49(16), pp. 3173-3181. doi: 10.1364/AO.49.003173

Pal, A., Dhar, A., Das, S., Chen, S. Y., Sun, T., Sen, R. & Grattan, K. T. V. (2010). Ytterbium-sensitized Thulium-doped fiber laser in the near-IR with 980 nm pumping. Optics Express, 18(5), pp. 5068-5074. doi: 10.1364/OE.18.005068

Nguyen, T.H., Sun, T., Grattan, K. T. V. & Hardwick, S. (2010). A fibre-optic chemical sensor for the detection of cocaine. Proceedings of SPIE, 76531V, doi: 10.1117/12.866496

Agrawal, A., Kejalakshmy, N., Rahman, B. M. & Grattan, K. T. V. (2010). Polarization and dispersion properties of elliptical hole golden spiral photonic crystal fiber. Applied Physics B: Lasers and Optics, 99(4), pp. 717-726. doi: 10.1007/s00340-010-4023-9

Themistos, C., Rajarajan, M., Rahman, B. M. & Grattan, K. T. V. (2009). Characterization of Silica Nanowires for Optical Sensing. Journal of Lightwave Technology, 27(24), pp. 5537-5542.

Kerrouche, A., Boyle, W. J. O., Sun, T., Grattan, K. T. V., Schmidt, J. W. & Taljsten, B. (2009). Strain Measurement Using Embedded Fiber Bragg Grating Sensors Inside an Anchored Carbon Fiber Polymer Reinforcement Prestressing Rod for Structural Monitoring. IEEE Sensors Journal, 9(11), pp. 1456-1461. doi: 10.1109/JSEN.2009.2018355

Grattan, K. T. V., Agrawal, A., Kejalakshmy, N. & Rahman, B. M. (2009). Soft Glass Equiangular Spiral Photonic Crystal Fiber for Supercontinuum Generation. IEEE Photonics Technology Letters, 21(22), pp. 1722-1724. doi: 10.1109/LPT.2009.2032523

Rahman, B. M., Kejalakshmy, N., Uthman, M., Agrawal, A., Wongcharoen, T. & Grattan, K. T. V. (2009). Mode degeneration in bent photonic crystal fiber study by using the finite element method. Applied Optics, 48(31), G131 - G138. doi: 10.1364/AO.48.00G131

Nguyen, T.H., Lin, Y. C., Chen, C. T., Surre, F., Venugopalan, T., Sun, T. & Grattan, K. T. V. (2009). Fibre optic chloride sensor based on fluorescence quenching of an acridinium dye. Proceedings of SPIE, 7503, doi: 10.1117/12.835607

Kejalakshmy, N., Rahman, B. M., Agrawal, A., Tanvir, H. M. & Grattan, K. T. V. (2009). Metal-Coated Defect-Core Photonic Crystal Fiber for THz Propagation. IEEE/OSA Journal of Lightwave Technology, 27(11), pp. 1631-1637. doi: 10.1109/JLT.2009.2020919

Kerrouche, A., Boyle, W. J. O., Gebremichael, Y., Sun, T., Grattan, K. T. V., Taljsten, B. & Bennitz, A. (2008). Field tests of fibre Bragg grating sensors incorporated into CFRP for railway bridge strengthening condition monitoring. Sensors and Actuators A: Physical, 148(1), pp. 68-74. doi: 10.1016/j.sna.2008.07.014

Agrawal, A., Kejalakshmy, N., Chen, J. & Grattan, K. T. V. (2008). Golden spiral photonic crystal fiber: polarization and dispersion properties. Optics Letters, 33(22), pp. 2716-2718. doi: 10.1364/OL.33.002716

Yeo, T. L., Sun, T. & Grattan, K. T. V. (2008). Fibre-optic sensor technologies for humidity and moisture measurement. Sensors and Actuators A: Physical, 144(2), pp. 280-295. doi: 10.1016/j.sna.2008.01.017

Sharma, A. & Agrawal, A. (2006). Non-paraxial Split-step Finite-difference Method for Beam Propagation. Optical and Quantum Electronics, 38(1-3), pp. 19-34. doi: 10.1007/s11082-006-0019-4

Sharma, A. & Agrawal, A. (2006). A new finite-difference-based method for wide-angle beam propagation. IEEE Photonics Technology Letters, 18(8), pp. 944-946. doi: 10.1109/LPT.2006.872314

Agrawal, A. & Sharma, A. (2004). Perfectly Matched Layer in Numerical Wave Propagation: Factors that Affect its Performance. Applied Optics, 43(21), pp. 4225-4231. doi: 10.1364/AO.43.004225

Sharma, A. & Agrawal, A. (2004). New method for nonparaxial beam propagation. Journal of the Optical Society of America A: Optics, Image Science & Vision (JOSA A), 21(6), pp. 1082-1087. doi: 10.1364/JOSAA.21.001082

Portrait of Arti Agrawal

Dr Arti Agrawal

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