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Zhang, Rui and Xia, Jiangnan and McCann, Hugh and Liu, Chang and Ahmed, Ihab and Pourkashanian, Mohamed and Gough, Andrew and Armstrong, Ian and Lengden, Michael and Johnstone, Walter; (2023) Miniature modular sensor for chemical species tomography with enhanced spatial resolution. In: 2023 IEEE International Conference on Imaging Systems and Techniques (IST). IEEE International Workshop on Imaging Systems and Techniques (IST) . IEEE, DNK. ISBN 9798350330830

Zhang, Rui and Xia, Jiangnan and Ahmed, Ihab and Gough, Andrew and Armstrong, Ian and Upadhyay, Abhishek and Fu, Yalei and Enemali, Godwin and Lengden, Michael and Johnstone, Walter and Wright, Paul and Ozanyan, Krikor and Pourkashanian, Mohamed and McCann, Hugh and Liu, Chang (2023) A fast sensor for non-intrusive measurement of concentration and temperature in turbine exhaust. Sensors and Actuators B: Chemical, 396. 134500. ISSN 0925-4005

Fu, Yalei and Zhang, Rui and Xia, Jiangnan and Gough, Andrew and Clark, Stuart and Upadhyay, Abhishek and Enemali, Godwin and Armstrong, Ian and Ahmed, Ihab and Pourkashanian, Mohamed and Wright, Paul and Ozanyan, Krikor and Lengden, Michael and Johnstone, Walter and Polydorides, Nick and McCann, Hugh and Liu, Chang (2023) Hybrid model-driven spectroscopic network for rapid retrieval of turbine exhaust temperature. IEEE Transactions on Instrumentation and Measurement, 72. 2531710. ISSN 1557-9662

Benoy, Thomas and Wilson, David and Lengden, Michael and Armstrong, Ian and Stewart, George and Johnstone, Walter (2017) Measurement of CO2 concentration and temperature in an aero engine exhaust plume using wavelength modulation spectroscopy. IEEE Sensors Journal, 17 (19). pp. 6409-6417. ISSN 1530-437X

Lengden, Michael and Wilson, David and Armstrong, Ian and Benoy, Thomas and Johnstone, Walter (2015) Fibre laser imaging of gas turbine exhaust species – a review of CO2 aero engine imaging. In: Advanced Photonics, 2015-06-27 - 2015-07-01.

Wright, Paul and McCormick, David and Ozanyan, Krikor and Johnson, Mark and Black, John and Fisher, Edward and Chighine, Andrea and Polydorides, Nick and McCann, Hugh and Feng, Yutong and Khan, Khouler and Bastock, Paul and Jia, Fuqiang and Hewak, Dan and Nilsson, Johan and Lengden, Michael and Wilson, David and Armstrong, Ian and Benoy, Thomas and Johnstone, Walter; (2015) Progress towards non-intrusive optical measurement of gas turbine exhaust species distributions. In: Aerospace Conference, 2015 IEEE. IEEE, USA, pp. 1-14. ISBN 9781479953790

Wilson, David and Armstrong, Ian and Lengden, Michael and Johnstone, Walter (2014) In-situ measurement of combustion produced CO2 in the 2μm region, within a jet engine exhaust plume. In: FLAIR 2014 - Field Laser Applications in Industry and Research, 2014-05-05 - 2014-05-09.

Benoy, Thomas and Lengden, Michael and Armstrong, Ian and Wilson, David and Stewart, George and Johnstone, Walter (2014) Near IR tunable diode laser spectroscopy for aero engine research. In: FLAIR 2014 - Field Laser Applications in Industry and Research, 2014-05-05 - 2014-05-09.

Bain, James and Lengden, Michael and Armstrong, Ian and Stewart, George and Johnstone, Walter (2013) Development of tunable diode laser spectroscopy instrumentation for gas species measurements in harsh environments. In: Applied Industrial Optics: Spectroscopy, Imaging, and Metrology, 2013-06-23 - 2013-06-27, Virginia.

Lengden, Michael and Armstrong, Ian and Bain, James and Johnstone, Walter (2012) Measurement of key species in gas turbine engine exhaust plumes. In: Institute of Physics - Delivering Future Combustion Technologies Meeting, 2012-10-23 - 2012-10-23.

Choubey, Bhaskar B. and Boyd, Euan James E.J. and Armstrong, Ian I. and Uttamchandani, Deepak G. D.G. (2012) Determination of the anisotropy of Young's modulus using a coupled microcantilever array. Journal of Microelectromechanical Systems, 21 (5). pp. 1252-1260. ISSN 1057-7157

Boyd, Euan James and Choubey, Bhaskar and Armstrong, Ian and Uttamchandani, Deepak G.; (2012) A simple technique to determine the anisotropy of Young's modulus of single crystal silicon using coupled micro-cantilevers. In: IEEE 25th International Conference on Micro Electro Mechanical Systems (MEMS), 2012. Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS) . IEEE, Piscataway, NJ, United States, pp. 389-391. ISBN 9781467303248

Veres, Istvan and Cleary, Alison and Thursby, Graham and McKee, Campbell and Armstrong, Ian and Pierce, Stephen and Culshaw, Brian (2012) Golay code modulation in low-power laser-ultrasound. Ultrasonics. ISSN 0041-624X

McKee, Campbell and Armstrong, Ian and Cleary, Alison and Thursby, Graham and Pierce, Stephen and Culshaw, Brian (2011) Probing the micro world with lasers and ultrasound - some impressions and observations. In: 1st EOS Topical Meeting on Micro- and Nano-Optoelectronic Systems, 2011-12-07 - 2011-12-09.

Pierce, Stephen and Cleary, Alison and Veres, Istvan and Culshaw, Brian and Thursby, Graham and Mckee, Campbell and Swift, C. and Armstrong, Ian (2011) Low peak-power laser ultrasonics. Nondestructive Testing and Evaluation, 26 (3-4). pp. 281-301.

Armstrong, I. and Johnstone, W. and Duffin, K. and Lengden, Michael and Chakraborty, Arup Lal and Ruxton, Keith C. (2010) Detection of CH4 in the mid-IR using difference frequency generation with tunable diode laser spectroscopy. Journal of Lightwave Technology, 28 (10). pp. 1435-1442. ISSN 0733-8724

Cleary, A. and Veres, Istvan and Thursby, G.J. and McKee, C. and Armstrong, I. and Pierce, S.G. and Culshaw, B. (2010) Low power laser generated ultrasound : signal processing for time domain data acquisition. In: Laser Ultrasonics 2010, 2010-07-05 - 2010-07-08.

Lengden, M. and Bain, J.R.P. and Armstrong, I. and Johnstone, W. (2009) Two gas spectrometers for the investigation of gas absorption parameters at elevated temperatures and pressures. In: International Conference on Field Laser Applications in Industry and Research, 2009-09-06 - 2009-09-11, Hotel am Badersee.

Lengden, M. and Johnstone, W. and Bain, J.R.P. and Stewart, G. and Armstrong, I. (2009) Preliminary gas composition investigations at elevated temperatures and pressures using calibration-free tDLS with the residual amplitude modulation technique. In: 7th International Conference on Tunable Diode Laser Spectroscopy, 2009-07-13 - 2009-07-17.

Armstrong, I. and Chakraborty, A. and Ruxton, K.C. and Johnstone, W. (2009) An investigation of TDLS modulation schemes as applied to the Mid-IR spectral region by difference frequency generation in PPLN. In: 7th International Conference on Tunable Diode Laser Spectroscopy, 2009-07-13 - 2009-07-17. (Unpublished)

Michie, C. and Kelly, A.E. and Armstrong, I. and Andonovic, I. and Tombling, C. (2007) An adjustable gain clamped semiconductor optical amplifier (AGC-SOA). Journal of Lightwave Technology, 25 (6). pp. 1466-1473. ISSN 0733-8724

Kelly, A. and Michie, W.C. and Armstrong, I. and Andonovic, I. and Tombling, C. (2006) High performance semiconductor optical amplifier modules at 1300 nm. IEEE Photonics Technology Letters, 18 (24). pp. 2674-2676. ISSN 1041-1135

Michie, W.C. and Kelly, A. and Mcgeough, J. and Armstrong, I. and Andonovic, I. and Tombling, C. (2006) Polarisation insensitive SOAs using strained bulk active regions. Journal of Lightwave Technology, 24 (11). pp. 3920-3927. ISSN 0733-8724

Armstrong, I. and Andonovic, I. and Kelly, A. and Bonthron, S. and Bebbington, J. and Michie, W.C. and Tombling, C. and Fasham, S. and Johnstone, W. (2005) Hybridisation platform assembly and demonstration of all optical wavelength conversion at 10Gbit/s. Journal of Lightwave Technology, 23 (5). pp. 1852-1859. ISSN 0733-8724

Armstrong, I. and Andonovic, I. and Kelly, A.E. (2004) Semiconductor optical amplifiers : performance and applications in optical packet switching [Invited]. Journal of Optical Networking, 3 (12). pp. 882-897. ISSN 1536-5379

Armstrong, I. and Andonovic, I. and Bebbington, J. and Michie, W.C. and Tombling, C. and Fasham, S. and Kelly, A.E. and Chai, Y. and Penty, R.V. and White, I. (2004) Hybridisation platform demonstrating all optical wavelength conversion at 10 and 20 Gbit/s. In: Optical Fiber Communication Conference, 2004. OFC 2004, 2004-02-22.