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dc.contributor.authorPatimisco, Pietro
Sampaolo, Angelo
Bidaux, Yves
Bismuto, Alfredo
Scott, Marshall
Jiang, James
Tittel, Frank K.
Spagnolo, Vincenzo
dc.date.accessioned 2017-02-08T16:34:32Z
dc.date.available 2017-02-08T16:34:32Z
dc.date.issued 2017
dc.identifier.citation Patimisco, Pietro, Sampaolo, Angelo, Bidaux, Yves, et al.. "Pure amplitude and wavelength modulation spectroscopy for detection of N2O using a three-sections quantum cascade laser." Proceedings of SPIE, 10111, (2017) SPIE: http://dx.doi.org/10.1117/12.2252352.
dc.identifier.urihttps://hdl.handle.net/1911/93858
dc.description.abstract We report on a novel quantum cascade laser (QCL) capable of operating in pure amplitude or wavelength modulation configuration thereby allowing the acquisition of background-free gas absorption-line profiles using quartz-enhanced photoacoustic spectroscopy (QEPAS). The QCL is composed of three electrically independent sections: Gain, Phase (PS) and Master Oscillator (MO). The non-uniform pumping of these three QCL sections allows laser wavelength tuning with constant optical power and vice-versa. Pure QEPAS amplitude modulation operating conditions were obtained by modulating the PS current, while pure wavelength modulation was obtained by modulating the MO section and slowly scanning the PS current.
dc.language.iso eng
dc.publisher SPIE
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 Pure amplitude and wavelength modulation spectroscopy for detection of N2O using a three-sections quantum cascade laser
dc.type Journal article
dc.citation.journalTitle Proceedings of SPIE
dc.subject.keywordquartz tuning fork
photoacoustic spectroscopy
quantum cascade laser
gas sensing
dc.citation.volumeNumber 10111
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1117/12.2252352
dc.type.publication publisher version
dc.citation.articleNumber 1011109


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