Contact Dr Jane Hodgkinson
- Tel: +44 (0) 1234 758325
- Email: j.hodgkinson@cranfield.ac.uk
- ORCID
Areas of expertise
- Instrumentation, Sensors and Measurement Science
- Sensor Technologies
Background
Dr Jane Hodgkinson joined Cranfield University from the natural gas industry, where she was responsible for developing and testing new sensing technologies, particularly optical sensors for gas leaks. Jane obtained her PhD in 1998 from the Optoelectronics Research Centre at the University of Southampton, working in a collaboration with United Utilities on photoacoustic and photothermal detection of trace chemicals in water. She gained her first degree in Natural Sciences (Physics, 1st class hons) from Cambridge University in 1989.
Developing advanced tools for optical gas detection with improved levels of robustness and lower complexity, aiming to move this important technique from the laboratory and into the field.
Current activities
- Use of diffusely scattering surfaces and integrating spheres within optical gas absorption cells, to ease alignment problems and reduce optical interference fringes. This includes investigating the effects of associated interference phenomena, including laser speckle behaviour in TDLS.
- Development of next generation non-dispersive infrared gas sensors, using newly developed light sources and configurations for folded light paths.
- Novel, low volume gas cells for healthcare applications.
- Optical fibre gas sensors, exploiting synergies within the Centre and using in-house fabrication facilities.
- Technology transfer to the gas detection industry, including collaborative projects with Geotechnical Instruments Ltd, Alphasense Ltd and Cascade Technologies Ltd.
- Chair of the Gas Analysis and Sensing Group (GASG), a UK technology club bringing together users, sensor and instrument manufacturers, consultants and academics. See www.gasg.info
Clients
Funding for this work has been provided by:- Engineering and Physical Sciences Research Council (EPSRC)
- Natural Environment Research Council (NERC)
- The Royal Society
- Technology Strategy Board (TSB)
- Alphasense Ltd
- Geotechnical Instruments Ltd
- AWE Plc
- Cascade Technologies Ltd.
Publications
Articles In Journals
- Davis NM, Francis D, Hodgkinson J & Tatam RP (2023) Compact methane sensor using an integrating sphere and interband cascade laser at 3313 nm, Sensors and Actuators B: Chemical, 389 (August) Article No. 133866. Dataset/s: 10.17862/cranfield.rd.22700626
- Bremner J, Kissinger T, Hodgkinson J & Tatam RP (2021) Fibre-coupled, multiplexed methane detection using range-resolved interferometry, Journal of Physics: Photonics, 3 (2) Article No. 02LT01. Dataset/s: 10.17862/cranfield.rd.11829723.v1
- Nixon J, Hodgkinson J & Bennett C (2020) Modified immersion suits for helicopter aircrew: evidence for improved conspicuity from sea trials, Safety Science, 130 (October) Article No. 104903.
- Lourenço C, Bergin S, Hodgkinson J, Francis D, Staines SE, Saffell JR, Walton C & Tatam RP (2020) Instrumentation for quantitative analysis of volatile compounds emission at elevated temperatures. Part 1: Design and implementation, Scientific Reports, 10 (1) Article No. 8700.
- Lourenço C, Francis D, Fowler DP, Staines SE, Hodgkinson J, Walton C, Bergin S & Tatam RP (2020) Instrumentation for quantitative analysis of volatile compounds emission at elevated temperatures. Part 2: Analysis of carbon fibre reinforced epoxy composite, Scientific Reports, 10 (1) Article No. 8702.
- Bergin S, Hodgkinson J, Francis D & Tatam RP (2020) Ratiometric pathlength calibration of integrating sphere-based absorption cells, Optics Express, 28 (13) 19574-19592. Dataset/s: 10.17862/cranfield.rd.8429051.v1
- Hodgkinson J, Nixon J, Bennett C & Tatam RP (2020) Field investigation of retroreflective materials for enhanced target detection in maritime search and rescue, Proceedings of SPIE, 11354.
- Davis NM, Lynch SF, Gates JC, Hodgkinson J, Smith PGR & Tatam RP (2019) Spectroscopic gas detection using a Bragg grating - stabilized external cavity laser, custom written in planar integrated silica-on-silicon, Optics Express, 27 (20) 29034-29044. Dataset/s: 10.17862/cranfield.rd.7844132.v1
- Davenport JJ, Hodgkinson J, Saffell JR & Tatam RP (2018) Non-dispersive ultra-violet spectroscopic detection of formaldehyde gas for indoor environments, IEEE Sensors Journal, 18 (6) 2218-2228. Dataset/s: 10.17862/cranfield.rd.4766023
- Asmari A, Hodgkinson J, Chehura E, Staines SE & Tatam RP (2017) All-electronic frequency stabilization of a DFB laser diode, Optics Express, 25 (10) 11679-11691. Dataset/s: 10.17862/cranfield.rd.4004943
- Bergin S, Hodgkinson J, Francis D & Tatam RP (2016) Integrating cavity based gas cells: a multibeam compensation scheme for pathlength variation, Optics Express, 24 (12) 13647-13664. Dataset/s: 10.17862/cranfield.rd.4004910.v1
- Francis D, Hodgkinson J, Livingstone B, Black P & Tatam RP (2016) Low-volume, fast response-time hollow silica waveguide gas cells for mid-IR spectroscopy, Applied Optics, 55 (25) 6797-6806. Dataset/s: 10.17862/cranfield.rd.3492908.v1
- Chowdhury SA, Correia R, Francis D, Brooks SJ, Jones BJS, Thompson AWJ, Hodgkinson J & Tatam RP (2015) An Optical Fiber Hydrogen Sensor Using a Palladium-Coated Ball Lens, Journal of Lightwave Technology, 33 (12) 2535-2542.
- Francis D, Hodgkinson J, Livingstone B & Tatam RP (2015) Quantum cascade laser light propagation through hollow silica waveguides, Applied Physics B, 119 (1) 75-86.
- Francis D, Masiyano D, Hodgkinson J & Tatam RP (2015) A mechanically stable laser diode speckle interferometer for surface contouring and displacement measurement, Measurement Science and Technology, 26 (5- 055402) 1-7.
- Davenport JJ, Hodgkinson J, Saffell JR & Tatam RP (2015) Noise analysis for CCD-based ultraviolet and visible spectrophotometry, Applied Optics, 54 (27) 8135-8144.
- Hodgkinson J & Tatam RP (2013) Optical gas sensing: a review, Measurement Science and Technology, 24 (1).
- Hodgkinson J, Smith R, Ho WO, Saffell JR & Tatam RP (2013) Non-dispersive infra-red (NDIR) measurement of carbon dioxide at 4.2μm in a compact and optically efficient sensor, Sensors and Actuators B: Chemical, 186 580-588.
- Chowdhury S. A., Chehura E., Correia R., Francis D., Hodgkinson J. & Tatam R. P. (2013) Stability comparison between two optical refractometer techniques, Journal of Physics: Conference Series, 450 (1).
- Hodgkinson J, Masiyano D & Tatam R (2013) Using integrating spheres with wavelength modulation spectroscopy: effect of pathlength distribution on 2nd harmonic signals, Applied Physics B, 110 (2) 223-231.
- Hodgkinson J & Pride RD (2010) Methane-specific gas detectors: the effect of natural gas composition, Measurement Science and Technology, 21 (10) Article No. 105103.
- Hodgkinson J, Masiyano D & Tatam RP (2010) Gas cells for tunable diode laser absorption spectroscopy employing optical diffusers. Part 1: single and dual pass cells, Applied Physics B, 100 (2) 291-302.
- Masiyano D, Hodgkinson J & Tatam RP (2010) Gas cells for tunable diode laser absorption spectroscopy employing optical diffusers. Part 2: Integrating spheres, Applied Physics B, 100 (2) 303-312.
- Hodgkinson J, Masiyano D & Tatam RP (2009) Using integrating spheres as absorption cells: path-length distribution and application of Beer's law, Applied Optics, 48 (30) 5748-5758.
- Masiyano D, Hodgkinson J, Schilt S & Tatam RP (2009) Self-mixing interference effects in tunable diode laser absorption spectroscopy, Applied Physics B, 96 (4) 863-874.
- Hodgkinson J, Saffell J, Luff J, Shaw J, Ramsden JJ, Huggins C, Bogue R & Carline R (2009) Gas sensors 1. The basic technologies and applications, Nanotechnology Perceptions, 5 (1) 71-82.
- Hodgkinson J, Safell J, Luff J, Shaw J, Ramsden JJ, Huggins C, Bogue R & Carline R (2009) Gas Sensors 2. The markets and challenges, Nanotechnology Perceptions, 5 (1) 83-107.
- Masiyano D, Hodgkinson J & Tatam RP (2008) Use of diffuse reflections in tunable diode laser absorption spectroscopy: implications of laser speckle for gas absorption measurements, Applied Physics B, 90 (2) 279-288.
- Masiyano D, Hodgkinson J & Tatam RP (2007) Methodology for investigation of diffuse reflections in tunable diode laser absorption spectroscopy, Journal of Physics: Conference Series, 76 (1) 012052-1-012052-6.
- Hodgkinson Jane, van Well Ben, Padgett Miles & Pride Russ D (2006) Modelling and interpretation of gas detection using remote laser pointers., Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 63 (5) 929-939.
- Gibson Graham, van Well Ben, Hodgkinson Jane, Pride Russ D, Strzoda Rainer, Murray Stuart, Bishton Steve & Padgett Miles (2006) Imaging of methane gas using a scanning, open-path laser system, 8.
- Hodgkinson J, Shan Q & Pride R (2006) Detection of a simulated gas leak in a wind tunnel, Measurement Science and Technology, 17 (6) 1586-1593.
- Hodgkinson Jane, Johnson Mark & Dakin John P (2005) Quantitative analysis of a closed photoacoustic cell that uses a high compliance piezoelectric transducer, Journal of Applied Physics, 98 (8).
- van Well Ben, Murray Stuart, Hodgkinson Jane, Pride Russ D, Strzoda Rainer, Gibson Graham & Padgett Miles (2005) An open-path, hand-held laser system for the detection of methane gas., Journal of Optics A: Pure and Applied Optics, 7 (6).
- Hodgkinson Jane, Johnson Mark & Dakin John P (2005) Performance of a photothermal detector with turbid liquids, Applied Optics, 44 (20) 4360-4367.
- Hodgkinson Jane, Johnson Mark & Dakin John P (2000) Comparison of self-referencing techniques for photothermal detection of trace compounds in water, Sensors and Actuators B: Chemical, 67 (3).
- Hodgkinson Jane, Johnson Mark & Dakin John P (1998) Photothermal Detection of Trace Optical Absorption in Water by Use of Visible-Light-Emitting Diodes, Applied Optics, 37 (31).
- Hodgkinson Jane, Johnson Mark & Dakin John P (1998) Photothermal detection of trace compounds in water, using the deflection of a water meniscus, Measurement Science and Technology, 9 (8).
Conference Papers
- Bremner JA, Kissinger T, Hodgkinson J & Tatam R (2020) A comparison of topologies used in an interferometric gas detection technique. In: Optical Sensing and Detection VI, France - Online event, 6-10 April 2020.
- Mullaney K, Hodgkinson J, Staines SE & Tatam RPO (2019) Wavelength-locking of a semiconductor laser using an electronic technique. In: SPIE OPTO: The Optoelectronics, Photonic Materials and Devices Conference, 2019, San Francisco, CA, 2-7 February 2019.
- Francis D, Hodgkinson J, Walton C, Sizer J, Black P, Livingstone B, Fowler DP, Patel MK & Tatam RP (2017) Mid-IR spectroscopic instrumentation for point-of-care diagnosis using a hollow silica waveguide gas cell. In: Photonics West, San Francisco, CA, 27 January - 1 February 2017.
- Davis NM, Hodgkinson J, Francis D & Tatam RP (2016) Sensitive detection of methane at 3.3 μm using an integrating sphere and interband cascade laser. In: Optical Sensing and Detection IV, Brussels, 3-7 April 2016.
- Lynch SG, Chen F, Gates JC, Holmes C, Staines SE, James SW, Hodgkinson J, Smith PGR & Tatam RP (2014) Bragg-grating-stabilized external cavity lasers for gas sensing using tunable diode laser spectroscopy. In: SPIE OPTO: The Optoelectronics, Photonic Materials and Devices Conference, 2014, San Francisco, CA, 1 February 2014.
- Asmari A, Hodgkinson J, Chehura E, Staines SE & Tatam RP (2014) Wavelength stabilisation of a DFB laser diode using measurement of junction voltage. In: Laser Sources and Applications II, Brussels, 14-17 April 2014.
- Chowdhury SA, Correia R, Francis D, Brooks SJ, Jones BJS, Thompson AWJ, Hodgkinson J & Tatam RP (2014) Palladium coated ball lens for optical fibre refractometry based hydrogen sensing. In: 23rd international conference on optical fibre sensors (OFS-23), 2014, Santander, 2-6 June 2014.
- Davenport JJ, Hodgkinson J, Saffell JR & Tatam RP (2014) Formaldehyde sensor using non-dispersive UV spectroscopy at 340nm. In: Optical Sensing and Detection III, Brussels, 14 April 2014.
- Chen F, Hodgkinson J, Staines S, James S & Tatam R (2012)
A 1.65 µm region external cavity laser diode using an InP gain chip and a fibre Bragg grating
. In: 22nd International Conference on Optical Fiber Sensors, 2012 (OFS 2012), Beijing, 15-19 October 2012. - Hodgkinson J, Smith R, Ho W, Saffell JR & Tatam RP (2012) A low cost, optically efficient carbon dioxide sensor based on non-dispersive infra-red (NDIR) measurement at 4.2 mu m. In: Optical Sensing and Detection II, Brussels, 16-19 April 2012.
- Davenport JJ, Hodgkinson J, Saffell JR & Tatam RP (2012) Noise analysis of a CCD based ultra-violet spectrometry system. In: Optical Sensing and Detection II, Brussels, 16-19 April 2012.
- Chen F, Hodgkinson J, Staines SE, James SW & Tatam RP (2012) A 1.65 mu m region external cavity laser diode using an InP gain chip and a fibre Bragg grating. In: 22nd International Conference on Optical Fiber Sensors, 2012 (OFS 2012), Beijing, 15-19 October 2012.
- Kannath A, Hodgkinson J, Gillard RG, Riley RJ & Tatam RP (2011) A VCSEL based system for on-site monitoring of low level methane emission. In: Vertical-Cavity Surface-Emitting Lasers XV, San Francisco, 22-23 January 2011.
- Pride R, Hodgkinson J, Padget M, Van Well B, Strzoda R, Murray S & Ljungberg S-A (2004) Implementation of optical technologies for portable gas leak detection. In: 9th International Gas Research Conference, (IGRC 2004), Vancouver, BC, 1 November 2004.
- Hodgkinson Jane, Pride Russ, Tandy Chris, Moodie Dave & Stewart George (2000) Field evaluation of a multi-point fibre optic sensor array for methane detection (“OMEGA”).
- MacKenzie S, Hodgkinson J, Johnson M & Dakin J (1997) Very efficient sampling technique for fiber-remote optical emission spectroscopy of aqueous solutions. In: Remote Sensing of Vegetation and Water, and Standardization of Remote Sensing Methods, Munich, 16 June 1997.
