Sensitive detection of methane at 3.3 μm using an integrating sphere and interband cascade laser

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dc.contributor.author Davis, Nicholas M.
dc.contributor.author Hodgkinson, Jane
dc.contributor.author Francis, Daniel
dc.contributor.author Tatam, Ralph P.
dc.date.accessioned 2016-06-23T17:00:03Z
dc.date.available 2016-06-23T17:00:03Z
dc.date.issued 2016-04-29
dc.identifier.citation N. M. Davis, J. Hodgkinson, D. Francis and R. P. Tatam. Sensitive detection of methane at 3.3 μm using an integrating sphere and interband cascade laser. Proc. SPIE 9899, Optical Sensing and Detection IV, 98990M (April 29, 2016) en_UK
dc.identifier.uri http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2520200
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/10019
dc.description.abstract Detection of methane at 3.3μm using a DFB Interband Cascade Laser and gold coated integrating sphere is performed. A 10cm diameter sphere with effective path length of 54.5cm was adapted for use as a gas cell. A comparison between this system and one using a 25cm path length single-pass gas cell is made using direct TDLS and methane concentrations between 0 and 1000 ppm. Initial investigations suggest a limit of detection of 1.0ppm for the integrating sphere and 2.2ppm for the single pass gas cell. The system has potential applications in challenging or industrial environments subject to high levels of vibration. en_UK
dc.language.iso en en_UK
dc.publisher Society of Photo-optical Instrumentation Engineers en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.title Sensitive detection of methane at 3.3 μm using an integrating sphere and interband cascade laser en_UK
dc.type Conference paper en_UK


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