Compact photoacoustic module for methane detection incorporating interband cascade light emitting device

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dc.citation.firstpage16761
dc.citation.issueNumber14
dc.citation.journalTitleOptics Express
dc.citation.lastpage16770
dc.citation.volumeNumber25
dc.contributor.authorZheng, Huadan
dc.contributor.authorLou, Minhan
dc.contributor.authorDong, Lei
dc.contributor.authorWu, Hongpeng
dc.contributor.authorYe, Weilin
dc.contributor.authorYin, Xukun
dc.contributor.authorKim, Chul Soo
dc.contributor.authorKim, Mijin
dc.contributor.authorBewley, William W.
dc.contributor.authorMerritt, Charles D.
dc.contributor.authorCanedy, Chadwick L.
dc.contributor.authorWarren, Michael V.
dc.contributor.authorVurgaftman, Igor
dc.contributor.authorMeyer, Jerry R.
dc.contributor.authorTittel, Frank K.
dc.date.accessioned2017-08-09T17:13:26Z
dc.date.available2017-08-09T17:13:26Z
dc.date.issued2017
dc.description.abstractA 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.identifier.citationZheng, Huadan, Lou, Minhan, Dong, Lei, et al.. "Compact photoacoustic module for methane detection incorporating interband cascade light emitting device." <i>Optics Express,</i> 25, no. 14 (2017) The Optical Society: 16761-16770. https://doi.org/10.1364/OE.25.016761.
dc.identifier.digitalCompact_photoacoustic_module
dc.identifier.doihttps://doi.org/10.1364/OE.25.016761
dc.identifier.urihttps://hdl.handle.net/1911/96629
dc.language.isoeng
dc.publisherThe Optical Society
dc.rightsArticle 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.titleCompact photoacoustic module for methane detection incorporating interband cascade light emitting device
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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