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Article

Lengden, Michael and Cunningham, Robert and Johnstone, Walter (2011) Tuneable diode laser gas analyser for methane measurements on a large scale solid oxide fuel cell. Journal of Power Sources, 196 (20). pp. 8406-8408. ISSN 0378-7753

Bain, James Roderic Peter and Johnstone, Walter and Ruxton, Keith Crawford and Stewart, George and Lengden, Michael and Duffin, Kevin (2011) Recovery of absolute gas absorption line shapes using tunable diode laser spectroscopy with wavelength modulation - Part 2 : experimental investigation. Journal of Lightwave Technology, 29 (7). pp. 987-996. ISSN 0733-8724

Ruxton, Keith C. and Chakraborty, Arup Lal and Johnstone, W. and Lengden, Michael and Stewart, G. and Duffin, K. (2010) Tunable diode laser spectroscopy with wavelength modulation : elimination of residual amplitude modulation in a phasor decomposition approach. Sensors and Actuators B: Chemical, 150 (1). pp. 367-375. ISSN 0925-4005

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

Chakraborty, Arup Lal and Ruxton, Keith C. and Johnstone, W. and Lengden, Michael and Duffin, K. (2009) Elimination of residual amplitude modulation in tunable diode laser wavelength modulation spectroscopy using an optical fiber delay line. Optics Express, 17 (12). pp. 9602-9607. ISSN 1094-4087

Conference or Workshop Item

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, Lincoln.

Bain, James and Black, John and Lengden, Michael and Johnstone, Walter (2012) Development of tunable diode laser spectroscopy sensor systems for line-of-sight measurement of water vapour in aero engine exhaust plumes. In: PHOTON12, 2011-03-31.

Lengden, Michael and Johnstone, Walter (2011) Gas composition measurements for fundamental research and process control on a 15kW solid oxide fuel cell. In: Field Laser Applications in Industry and Research, 2011-09-13 - 2011-09-17, Murnau, Germany.

Bain, James and Lengden, Michael and Black, John and Johnstone, Walter (2011) Measurement of aeroengine intake gas temperature using TDLS of atmospheric water vapour. In: Field Laser Applications in Industry and Research, 2011-09-13 - 2011-09-17, Murnau, Germany.

Bain, James Roderic Peter and Lengden, Michael and Stewart, George and Black, John and Johnstone, Walter (2011) Development of a TDLS-based ambient water vapour sensor for aeroengine intake temperature determination. In: 8th International Conference on Tunable Diode Laser Spectroscopy, 2011-07-11 - 2011-07-15, Zermatt. (Unpublished)

Lengden, Michael and Johnstone, Walter and Bain, James Roderic Peter and Milne, Laura (2011) High temperature investigations of methane for the calculation of the temperature dependence of spectral parameters. In: 8th International Conference on Tunable Diode Laser Spectroscopy, 2011-07-11 - 2011-07-15, Zermatt. (Unpublished)

Bain, James and Lengden, Michael and Stewart, George and Johnstone, Walter (2011) Tunable diode laser spectroscopy for process control and diagnostics in industrial systems. In: 2nd Annual SU2P symposium, 2011, 2011-03-28, St Andrews.

Lengden, Michael and Johnstone, W. and Cunningham, Robert (2010) In-situ, real time gas composition measurements for SOFC's using laser spectroscopy. In: European Fuel Cell Forum 2010, 2010-06-29 - 2010-07-02, Luzern, Switzerland. (Unpublished)

Bain, J.R.P. and Stewart, G. and Duffin, K. and Lengden, M. and Ruxton, K.C. and Johnstone, W. (2009) Recovery of absolute gas absorption lineshapes using TDLS at arbitrary modulation indices. In: UNSPECIFIED.

Bain, J.R.P. and Stewart, G. and Duffin, K. and Lengden, M. and Ruxton, K.C. and Johnstone, W. (2009) Recovery of gas absorption lineshapes using TDLS at arbitrary modulation indices. In: International Conference on Field Laser Applications in Industry and Research (FLAIR), 2009-09-06 - 2009-09-11, Grainau.

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 (FLAIR), 2009-09-06 - 2009-09-11, Grainau.

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, Zermatt, Switzerland.

Chakraborty, Arup Lal and Ruxton, Keith C. and Johnstone, W. and Lengden, Michael and Duffin, K. (2009) Elimination of residual amplitude modulation in TDLS-WMS. In: Conference on Lasers and Electro-Optics/ European Quantum Electronics Conference (CLEO Europe/EQEC-2009), 2009-06-14 - 2009-06-19, Munich.