Prof. Elfed Lewis Profile

Prof. Elfed Lewis

Director, Optical Fibre Sensor Research Ctr at Univ of Limerick

SPIE Involvement:

Author | Editor

Publications (71)

Proceedings Article | 27 November 2023 Poster + Paper

An optical fiber x-ray sensing array for small-field radiotherapy

Bo He, Ziyin Chen, Jingjing Wang, Libin Wang, Wenjing Hao, Haojie Yang, Shengjia Wang, Tao Geng, Yushou Song, Elfed Lewis, Weimin Sun

Proceedings Volume 12770, 127703E (2023) https://doi.org/10.1117/12.2689094

KEYWORDS: Radiotherapy, X-ray optics, X-rays, Sensors, Optical sensing, Optical fibers, Surgery, Signal generators, Sensor calibration, Fiber optics sensors

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Proceedings Article | 23 May 2023 Paper

Novel side-polished balloon shaped heterocore structured plastic optical fibre ethanol sensor

Sanober Farheen Memon, Ruoning Wang, Bob Strunz, Bhawani Shankar Chowdhry, J. Tony Pembroke, Elfed Lewis

Proceedings Volume 12643, 126431B (2023) https://doi.org/10.1117/12.2679142

KEYWORDS: Bioalcohols, Sensors, Water, Optical fibers, Polishing, Refractive index, Transmittance

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Proceedings Article | 31 January 2020 Paper

Optimization of PMMA fiber optic sensor technique in gas-liquid flow measurement

Yu Ma, Xu Zhang, Yuguang Zhang, Mingyang Lv, Song Li, Weimin Sun, Elfed Lewis

Proceedings Volume 11427, 114270F (2020) https://doi.org/10.1117/12.2549471

KEYWORDS: Optical fibers, Reflectivity, Polymethylmethacrylate, Fiber optics sensors, Sensors, Water, Light, Optical fabrication, Optical simulations, MATLAB

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Proceedings Article | 28 August 2019 Paper

Highly sensitive strain sensor based on a hollow-core fibre embedded SMS fibre structure

Ke Tian, Meng Zhang, Xin Wang, Gerald Farell, Pengfei Wang, Elfed Lewis

Proceedings Volume 11199, 111993C (2019) https://doi.org/10.1117/12.2541279

KEYWORDS: Structured optical fibers, Sensors, Composites, Brain-machine interfaces, Optical fibers, Fabry–Perot interferometers, Fabry–Perot interferometry, Single mode fibers, Multimode fibers, Structural sensing

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Proceedings Article | 28 August 2019 Paper

Performance enhancement of YAG:Ce-phosphor scintillator optical fibre radiation sensors with high temporal resolution based on improvements in high sensitivity detection techniques

L. Chen, S. Chen, S. Gillespie, P. Woulfe, B. Jiang, S. O'Keeffe, E. Lewis

Proceedings Volume 11199, 111990N (2019) https://doi.org/10.1117/12.2541276

KEYWORDS: Sensors, Scintillators, Optical fibers, Radiotherapy, YAG lasers, X-rays, Temporal resolution, Oncology, Cerium, Calibration

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SPIE Journal Paper | 8 June 2019

Multiwavelength Q-switched pulse operation with gold nanoparticles as saturable absorber

Shi Li, Yu Yin, Elfed Lewis, Gerald Farrell, Masaki Tokurukawa, Ahmad Haziq Aiman Rosol, Sulaiman Harun, Pengfei Wang

OE, Vol. 58, Issue 06, 066104, (June 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.6.066104

KEYWORDS: Pulsed laser operation, Q switching, Nanoparticles, Fiber lasers, Gold, Q switched lasers, Oscilloscopes, Surgery, Saturable absorption, Laser damage threshold

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SPIE Journal Paper | 6 February 2019

Time identification method of an optical blade tip timing system based on optical interrogation of surface inscribed microstructure surface features

Ruixuan Qu, Yang Luo, Quan Chai, Yanlei Liu, Jianzhong Zhang, Elfed Lewis, Jun Yang, Libo Yuan

OE, Vol. 58, Issue 07, 072005, (February 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.7.072005

KEYWORDS: Light scattering, Electronic filtering, Sensors, Scattering, Optical filters, Light, Modulation, Fiber optics sensors, Error analysis, Light sources

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SPIE Journal Paper | 25 July 2018

Enhanced sensitivity of heterocore structure surface plasmon resonance sensors based on local microstructures

Wenjie Zhu, Qing Huang, Yong Wang, Elfed Lewis, Minghong Yang

OE, Vol. 57, Issue 07, 076105, (July 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.7.076105

KEYWORDS: Femtosecond phenomena, Resonance enhancement, Sensors, Single mode fibers, Cladding, Surface plasmons, Gold, Fiber optics sensors, Optical fibers, Multimode fibers

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Proceedings Article | 23 April 2017 Paper

A novel inter-fibre light coupling sensor probe using plastic optical fibre for ethanol concentration monitoring at initial production rate

Sanober F. Memon, Elfed Lewis, J. Tony Pembroke, Bhawani S. Chowdhry

Proceedings Volume 10323, 103233Y (2017) https://doi.org/10.1117/12.2265377

KEYWORDS: Sensors, Optical fibers, Bioalcohols, Optical sensors, Phase only filters, Visible radiation, Time metrology, Spectroscopy, Light, Ocean optics

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Proceedings Article | 23 April 2017 Paper

A comparison of clinic based dosimeters based on silica optical fibre and plastic optical fibre for in vivo dosimetry

Lingxia Chen, Sinead O'Keeffe, Peter Woulfe, Elfed Lewis

Proceedings Volume 10323, 103237C (2017) https://doi.org/10.1117/12.2265032

KEYWORDS: Polymer optical fibers, Capillaries, Radiotherapy, Signal attenuation, In vivo imaging, Optical fibers, Sensors, Silica, Scintillation, Optical fabrication

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Proceedings Article | 23 April 2017 Paper

Fabry-Pérot based refractive index optical fiber sensor for measurement of oxygen concentration levels in hypoxic tumors during radiotherapy treatment

Charusluk Viphavakit, DineshBabu Duraibabu, Sinead O'Keeffe, Elfed Lewis

Proceedings Volume 10323, 103233K (2017) https://doi.org/10.1117/12.2265084

KEYWORDS: Tumors, Tissues, Blood, Sensors, Refractive index, Fiber optics sensors, Radiotherapy, Phase measurement, Oxygen, Gold

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Proceedings Article | 23 April 2017 Paper

Low cost portable sensor for real-time monitoring of lower back bending

Wern Kam, Kieran O'Sullivan, Waleed Mohammed, Elfed Lewis

Proceedings Volume 10323, 1032373 (2017) https://doi.org/10.1117/12.2264787

KEYWORDS: Spine, Phase only filters, Bone, Skin, Therapeutics, Optoelectronics, Sensors, Optical fibers, Polymer optical fibers, Calibration

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Proceedings Article | 30 May 2016 Paper

Fibre optic sensors for temperature and pressure monitoring in laser ablation: experiments on ex-vivo animal model

Daniele Tosi, Paola Saccomandi, Emiliano Schena, Dinesh Duraibabu, Sven Poeggel, Abzal Adilzhan, Kamilla Aliakhmet, Sergio Silvestri, Gabriel Leen, Elfed Lewis

Proceedings Volume 9916, 991614 (2016) https://doi.org/10.1117/12.2235470

KEYWORDS: Laser ablation, Sensors, Fiber Bragg gratings, Optical fibers, Fiber optics sensors, Fabry–Perot interferometers, Interferometry, Temperature sensors, Liver, Temperature metrology, Nd:YAG lasers, Radiofrequency ablation, Pancreas, Tissues

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Proceedings Article | 30 May 2016 Paper

Novel ultrahigh resolution optical fibre temperature sensor

Sven Poeggel, Dineshbabu Duraibabu, Gerard Dooly, Elfed Lewis, Gabriel Leen

Proceedings Volume 9916, 991605 (2016) https://doi.org/10.1117/12.2236155

KEYWORDS: Temperature sensors, Optical fibers, Optical resolution, Interferometers, Fiber Bragg gratings, Patents, Mechanical sensors, Environmental sensing, Sensors, Electromagnetism, Temperature metrology, Capillaries, Optical sensors, Single mode fibers

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Proceedings Article | 30 May 2016 Paper

Optical fibre pressure and temperature sensor system designed for urodynamic applications

Dineshbabu Duraibabu, Niall Kelly, Sven Poeggel, Hugh Flood, Hongwei Yuan, Gerard Dooly, Deirdre McGrath, Daniele Tosi, Elfed Lewis, Gabriel Leen

Proceedings Volume 9916, 991617 (2016) https://doi.org/10.1117/12.2236162

KEYWORDS: Temperature metrology, Environmental sensing, Glasses, Single mode fibers

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Proceedings Article | 30 May 2016 Paper

Optical fibre multi-parameter sensing with secure cloud based signal capture and processing

Thomas Newe, Eoin O'Connell, Damien Meere, Hongwei Yuan, Gabriel Leen, Sinead O'Keeffe, Elfed Lewis

Proceedings Volume 9916, 99162V (2016) https://doi.org/10.1117/12.2236632

KEYWORDS: Optical sensing, Clouds, Optical fibers, Sensors, Environmental sensing, Chemical analysis, Optical signal processing, Signal processing, Computing systems, Computer security, Data storage, Sensing systems, Data processing

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Proceedings Article | 29 April 2016 Paper

A novel structure optical fiber radiation dosimeter for radiotherapy applications

Weimin Sun, Zhuang Qin, Yu Ma, Wenhui Zhao, Yaosheng Hu, Daxin Zhang, Ziyin Chen, Elfed Lewis

Proceedings Volume 9899, 98991D (2016) https://doi.org/10.1117/12.2227304

KEYWORDS: Polymethylmethacrylate, Scintillators, Fiber optics sensors, Ionizing radiation, Radiotherapy, Fiber optics, Sensors, X-rays, Optical fibers, Scintillation, Cancer

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Proceedings Article | 28 September 2015 Paper

An optical fibre sensor for combined point pressure measurement and spatially resolved temperature measurement

DineshBabu Duraibabu, Sven Poeggel, Kevin Lehzen, Gerard Dooly, Elfed Lewis, Gabriel Leen, Thomas Newe

Proceedings Volume 9634, 96344J (2015) https://doi.org/10.1117/12.2194572

KEYWORDS: Sensors, Fiber Bragg gratings, Optical fibers, Temperature metrology, Copper, Fabrication, Fabry–Perot interferometry, Capillaries, Head, Aerospace engineering

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Proceedings Article | 28 September 2015 Paper

Multi FBG femtosecond laser inscription in FPI based pressure sensors for temperature distribution

Sven Poeggel, Dinesbabu Duraibabu, Amedee Lacraz, Kyriacos Kalli, Daniele Tosi, Gabriel Leen, Elfed Lewis

Proceedings Volume 9634, 96342N (2015) https://doi.org/10.1117/12.2190008

KEYWORDS: Fiber Bragg gratings, Sensors, Temperature metrology, Femtosecond phenomena, Glasses, Radiofrequency ablation, Cancer, Oncology, Liver, Spatial resolution

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Proceedings Article | 28 September 2015 Paper

Plastic optical fibre sensor for in-vivo radiation monitoring during brachytherapy

P. Woulfe, F. Sullivan, E. Lewis, S. O'Keeffe

Proceedings Volume 9634, 96342I (2015) https://doi.org/10.1117/12.2195213

KEYWORDS: Sensors, Optical fibers, In vivo imaging, Radiotherapy, Cancer, Gadolinium, Photon counting, Scintillation, Scintillators, Lanthanum

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Proceedings Article | 28 September 2015 Paper

Optical fiber biocompatible sensors for monitoring selective treatment of tumors via thermal ablation

Daniele Tosi, Sven Poeggel, Duraibabu Dinesh, Edoardo Macchi, Mario Gallati, Giovanni Braschi, Gabriel Leen, Elfed Lewis

Proceedings Volume 9634, 963428 (2015) https://doi.org/10.1117/12.2192201

KEYWORDS: Radiofrequency ablation, Sensors, Tumors, Temperature metrology, Optical fibers, Tissues, Liver, Fiber Bragg gratings, Fiber optics sensors, Cancer

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Proceedings Article | 15 July 2015 Paper

Fiber-optic technologies for advanced thermo-therapy applied ex vivo to liver tumors

D. Tosi, G. Perrone, A. Vallan, A. Braglia, Y. Liu, E. Macchi, G. Braschi, M. Gallati, A. Cigada, S. Poeggel, D. Duraibabu, G. Leen, E. Lewis

Proceedings Volume 9537, 95370S (2015) https://doi.org/10.1117/12.2181200

KEYWORDS: Radiofrequency ablation, Fiber Bragg gratings, Tumors, Sensors, Liver, Laser ablation, Tissues, Fiber optics sensors, Cancer, Temperature metrology

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SPIE Journal Paper | 10 March 2015 Open Access

Differential in vivo urodynamic measurement in a single thin catheter based on two optical fiber pressure sensors

Sven Poeggel, Dineshbabu Duraibabu, Daniele Tosi, Gabriel Leen, Elfed Lewis, Deirdre McGrath, Ferdinando Fusco, Simone Sannino, Laura Lupoli, Juliet Ippolito, Vincenzo Mirone

JBO, Vol. 20, Issue 03, 037005, (March 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.3.037005

KEYWORDS: Sensors, Bladder, In vivo imaging, Optical fibers, Fiber Bragg gratings, Fiber optics sensors, Optical sensors, Temperature sensors, Rectum, Single mode fibers

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SPIE Journal Paper | 11 November 2014 Open Access

Optical fiber sensors-based temperature distribution measurement in ex vivo radiofrequency ablation with submillimeter resolution

Edoardo Macchi, Daniele Tosi, Giovanni Braschi, Mario Gallati, Alfredo Cigada, Giorgio Busca, Elfed Lewis

JBO, Vol. 19, Issue 11, 117004, (November 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.11.117004

KEYWORDS: Temperature metrology, Tissues, Sensors, Spatial resolution, Liver, Tumors, Optical fibers, Radiofrequency ablation, Fiber Bragg gratings, In vivo imaging

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Proceedings Article | 18 June 2014 Paper

Novel diaphragm microfabrication techniques for high-sensitivity biomedical fiber optic Fabry-Perot interferometric sensors

Sven Poeggel, Daniele Tosi, Dineshbabu Duraibabu, James Kelly, Maria Munroe, Gabriel Leen, Elfed Lewis

Proceedings Volume 9098, 909813 (2014) https://doi.org/10.1117/12.2050500

KEYWORDS: Sensors, Etching, Polishing, Algorithm development, Capillaries, HF etching, Ion beams, Single mode fibers, Biomedical optics, Fabrication

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Proceedings Article | 2 June 2014 Paper

A temperature compensated optical fibre bending sensor for physiological measurement

M. Zawawi, S. O'Keeffe, E. Lewis

Proceedings Volume 9157, 91574H (2014) https://doi.org/10.1117/12.2058933

KEYWORDS: Sensors, Optical fibers, Fiber optics sensors, Modulation, Temperature metrology, Light, Light emitting diodes, Signal attenuation, Spine, Reflectivity

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Proceedings Article | 2 June 2014 Paper

Fiber optic dual EFPI/FBG for radiofrequency ablation monitoring in liver: ex-vivo experiments

Daniele Tosi, Edoardo Gino Macchi, Giovanni Braschi, Mario Gallati, Alfredo Cigada, Sandro Rossi, Sven Poeggel, Gabriel Leen, Elfed Lewis

Proceedings Volume 9157, 915740 (2014) https://doi.org/10.1117/12.2058066

KEYWORDS: Radiofrequency ablation, Liver, Fiber Bragg gratings, Tumors, Fiber optics, Fiber optics sensors, Sensors, Sensing systems, Fabry–Perot interferometers, Electrodes

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Proceedings Article | 2 June 2014 Paper

Fiber optic extrinsic Fabry-Perot interferometry pressure sensors for in-vivo urodynamic analysis

Sven Poeggel, Daniele Tosi, Ferdinando Fusco, Vincenzo Mirone, Simone Sannino, Laura Lupoli, Juliet Ippolito, Gabriel Leen, Elfed Lewis

Proceedings Volume 9157, 915741 (2014) https://doi.org/10.1117/12.2058292

KEYWORDS: Bladder, Fiber optics sensors, Fiber optics, Sensors, In vivo imaging, Fabry–Perot interferometers, Interferometry, Sensing systems, Rectum, Diagnostics

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Proceedings Article | 2 June 2014 Paper

Characterisation of radioluminesence based optical fibre dosimeter in radiotherapy beam applications

P. Woulfe, S. O'Keeffe, D. McCarthy, M. Grattan, A. Hounsell, J. Cronin, E. Lewis

Proceedings Volume 9157, 915799 (2014) https://doi.org/10.1117/12.2059389

KEYWORDS: Sensors, Optical fibers, Radiotherapy, Polymethylmethacrylate, Ionizing radiation, Scintillators, Spectroscopy, Diodes, Scintillation, Field effect transistors

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Proceedings Article | 23 May 2014 Paper

Underwater pressure measurement using fibre optic extrinsic Fabry-Perot interferometric (EFPI) sensors

Dinesh Babu Duraibabu, Sven Poeggel, Elfed Lewis, Thomas Newe

Proceedings Volume 9111, 911111 (2014) https://doi.org/10.1117/12.2050162

KEYWORDS: Sensors, Capillaries, Polishing, Fiber optics, Interferometry, Glasses, Interfaces, Optical testing, Optical fibers, Silica

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Proceedings Article | 22 May 2014 Paper

Low drift and high resolution miniature optical fiber combined pressure- and temperature sensor for cardio-vascular and urodynamic applications

Sven Poeggel, Daniele Tosi, Dineshbabu Duraibabu, Simone Sannino, Laura Lupoli, Juliet Ippolito, Fernando Fusco, Vincenzo Mirone, Gabriel Leen, Elfed Lewis

Proceedings Volume 9107, 910704 (2014) https://doi.org/10.1117/12.2050156

KEYWORDS: Sensors, Fiber Bragg gratings, Temperature metrology, In vivo imaging, Temperature sensors, Optical fibers, Biomedical optics, Bladder, Interferometers, Heart

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Proceedings Article | 15 May 2014 Paper

Terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) scintillation-based polymer optical fibre sensor for real time monitoring of radiation dose in oncology

E. Lewis, S. O'Keeffe, M. Grattan, A. Hounsell, D. McCarthy, P. Woulfe, J. Cronin, L. Mihai, D. Sporea, A. Santhanam, N. Agazaryan

Proceedings Volume 9141, 914113 (2014) https://doi.org/10.1117/12.2058572

KEYWORDS: Sensors, Optical fibers, Radiotherapy, Polymethylmethacrylate, Ionizing radiation, Gadolinium, Radiation oncology, X-rays, Oncology, Fiber optics sensors

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Proceedings Article | 17 June 2013 Paper

Low-cost miniature fiber-optic extrinsic Fabry-Perot interferometric pressure sensor for biomedical applications

Sven Poeggel, Daniele Tosi, Gabriel Leen, Elfed Lewis

Proceedings Volume 8797, 87970B (2013) https://doi.org/10.1117/12.2031372

KEYWORDS: Sensors, Fiber Bragg gratings, Fiber optics sensors, Fiber optics, Fabry–Perot interferometers, Surgery, Biomedical optics, Interferometry, Multimode fibers, Fabry–Perot interferometry

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Proceedings Article | 20 May 2013 Paper

Fiber optic extrinsic FPI/FBG sensor for temperature-compensated pressure measurement in medical applications

S. Poeggel, D. Tosi, G. Leen, E. Lewis

Proceedings Volume 8794, 87940J (2013) https://doi.org/10.1117/12.2025483

KEYWORDS: Fiber Bragg gratings, Sensors, Fiber optics sensors, Fiber optics, Sensing systems, Fiber optics tests, Algorithm development, Optical fibers, Biomedical optics, Etching

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Proceedings Article | 20 May 2013 Paper

Radiotherapy dosimetry based on plastic optical fibre sensors

S. O'Keeffe, M. Grattan, A. Hounsell, D. McCarthy, P. Woulfe, J. Cronin, E. Lewis

Proceedings Volume 8794, 879418 (2013) https://doi.org/10.1117/12.2025864

KEYWORDS: Sensors, Optical fibers, Radiotherapy, Polymethylmethacrylate, Ionizing radiation, Fiber optics sensors, Spectroscopy, Cancer, Scintillation, Gadolinium

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Proceedings Article | 13 May 2013 Paper

Miniature low-cost extrinsic Fabry-Perot interferometer for low-pressure detection

Sven Poeggel, Daniele Tosi, Gabriel Leen, Elfed Lewis

Proceedings Volume 8788, 878811 (2013) https://doi.org/10.1117/12.2019799

KEYWORDS: Sensors, Fiber Bragg gratings, Fiber optics sensors, Optical fibers, Algorithm development, Fiber optics, Fabry–Perot interferometry, Fabry–Perot interferometers, Detection and tracking algorithms, Spectroscopy

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Proceedings Article | 17 October 2012 Paper

Scintillating optical fibre sensor for radiotherapy dosimetry

D. McCarthy, S. O'Keeffe, P. Woulfe, J. Cronin, E. Lewis

Proceedings Volume 8421, 8421BK (2012) https://doi.org/10.1117/12.975240

KEYWORDS: Sensors, Radiotherapy, Optical fibers, X-rays, Coating, Scintillation, Ionizing radiation, Spectroscopy, Fiber optics sensors, Visible radiation

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Proceedings Article | 17 October 2012 Paper

Development of a discriminating fibre optic sensing array for wireless real time analysis of the maritime environment

Eoin O'Connell, Michael Healy, Sinead O'Keeffe, Thomas Newe, Elfed Lewis

Proceedings Volume 8421, 84212E (2012) https://doi.org/10.1117/12.975162

KEYWORDS: Sensors, Liquids, Fiber optics, Environmental sensing, Sensing systems, Optical sensing, Ocean optics, Optical fibers, Sensor networks, Absorption

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Proceedings Article | 17 May 2011 Paper

Fibre optic pressure sensor system for high temperature exhaust gas flows

K. Bremer, E. Lewis, G. Leen, B. Moss, J. Leen, S. Lochmann, I. Mueller

Proceedings Volume 7753, 77535K (2011) https://doi.org/10.1117/12.885137

KEYWORDS: Sensors, Fiber Bragg gratings, Feedback control, Signal to noise ratio, Temperature metrology, Fiber optics, Combustion, Glasses, Sensing systems, Interferometers

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Proceedings Article | 17 May 2011 Paper

In-situ monitoring of carbon dioxide emissions from a diesel engine using a mid-infrared optical fibre sensor

Elfed Lewis, John Clifford, Colin Fitzpatrick, Gerard Dooly, Weizhong Zhao, Tong Sun, Ken Grattan, James Lucas, Martin Degner, Hartmut Ewald, Steffan Lochmann, Gero Bramann, Edoardo Merlone-Borla, Flavio Gili

Proceedings Volume 7753, 77534P (2011) https://doi.org/10.1117/12.885186

KEYWORDS: Sensors, Optical fibers, Carbon dioxide, Mid-IR, Gas sensors, Carbon monoxide, Oxides, Infrared radiation, Infrared sensors, Roads

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Proceedings Article | 9 September 2010 Paper

Feedback controlled single wavelength interrogation technique for miniature all-silica EFPI fibre optic pressure sensors

K. Bremer, E. Lewis, G. Leen, B. Moss, S. Lochmann, I. Mueller

Proceedings Volume 7653, 76532D (2010) https://doi.org/10.1117/12.866451

KEYWORDS: Sensors, Fiber optics, Fiber Bragg gratings, Feedback control, Temperature metrology, Tunable lasers, Optical fibers, Environmental sensing, Silica, Glasses

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Proceedings Article | 5 October 2009 Paper

Novel passive fibre-cavity design for ring-down experiments using a multimode optical waveguide

M. Fabian, E. Lewis, T. Newe, S. Lochmann

Proceedings Volume 7503, 75034D (2009) https://doi.org/10.1117/12.835130

KEYWORDS: Reflectivity, Sensors, Waveguides, Refractive index, Optical fibers, Gold, Laser sources, Photodiodes, Mirrors, Receivers

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Proceedings Article | 5 October 2009 Paper

Conception and preliminary evaluation of an optical fibre sensor for simultaneous measurement of pressure and temperature

K. Bremer, E. Lewis, B. Moss, G. Leen, S. Lochmann, I. Mueller

Proceedings Volume 7503, 75030I (2009) https://doi.org/10.1117/12.837612

KEYWORDS: Sensors, Fiber Bragg gratings, Temperature metrology, Optical fibers, Silica, Glasses, Fabry–Perot interferometers, Interferometry, Standards development, Telecommunications

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Proceedings Article | 27 September 2008 Paper

Optical fibre sensors for the monitoring of a microwave plasma UV lamp and ozone generation system

S. O'Keeffe, M. Ortoneda, J. Cullen, A. Shaw, C. Fitzpatrick, E. Lewis, D. Phipps, A. Al-Shamma'a

Proceedings Volume 7100, 71001K (2008) https://doi.org/10.1117/12.797189

KEYWORDS: Ultraviolet radiation, Ozone, Lamps, Sensors, Microwave radiation, Optical fibers, Plasma, Bacteria, Control systems, Microorganisms

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Proceedings Article | 16 May 2008 Paper

Comparison of palladium thin films used in a transmission based optical fibre hydrogen sensor

K. Gleeson, E. Lewis

Proceedings Volume 7004, 700433 (2008) https://doi.org/10.1117/12.786081

KEYWORDS: Hydrogen, Palladium, Sensors, Nitrogen, Thin films, Optical fibers, Glasses, Spectroscopy, Transmittance, Optical components

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