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dc.contributor.authorZheng, Huadan
Lou, Minhan
Dong, Lei
Wu, Hongpeng
Ye, Weilin
Yin, Xukun
Kim, Chul Soo
Kim, Mijin
Bewley, William W.
Merritt, Charles D.
Canedy, Chadwick L.
Warren, Michael V.
Vurgaftman, Igor
Meyer, Jerry R.
Tittel, Frank K.
dc.date.accessioned 2017-08-09T17:13:26Z
dc.date.available 2017-08-09T17:13:26Z
dc.date.issued 2017
dc.identifier.citation Zheng, Huadan, Lou, Minhan, Dong, Lei, et al.. "Compact photoacoustic module for methane detection incorporating interband cascade light emitting device." Optics Express, 25, no. 14 (2017) The Optical Society: 16761-16770. https://doi.org/10.1364/OE.25.016761.
dc.identifier.urihttps://hdl.handle.net/1911/96629
dc.description.abstract A photoacoustic module (PAM) for methane detection was developed by combining a novel 3.2 μm interband cascade light emitting device (ICLED) with a compact differential photoacoustic cell. The ICLED with a 22-stage interband cascade active core emitted a collimated power of ~700 μW. A concave Al-coat reflector was positioned adjacent to the photoacoustic cell to enhance the gas absorption length. Assembly of the ICLED and reflector with the photoacoustic cell resulted in a robust and portable PAM without any moving parts. The PAM performance was evaluated in terms of operating pressure, sensitivity and linearity. A 1σ detection limit of 3.6 ppmv was achieved with a 1-s integration time.
dc.language.iso eng
dc.publisher The Optical Society
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Compact photoacoustic module for methane detection incorporating interband cascade light emitting device
dc.type Journal article
dc.citation.journalTitle Optics Express
dc.citation.volumeNumber 25
dc.citation.issueNumber 14
dc.identifier.digital Compact_photoacoustic_module
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1364/OE.25.016761
dc.type.publication publisher version
dc.citation.firstpage 16761
dc.citation.lastpage 16770


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