Title: Cantilever-enhanced photoacoustic detection of hydrogen sulfide (H2S) using NIR telecom laser sources near 1.6 µm
Language: English
Authors: Lendl, Bernhard  
Moser, Harald 
Issue Date: 2016
Journal: Applied Physics B
Abstract: 
Sensitive detection of hydrogen sulfide (H2S) at different pressure levels using a cantilever-enhanced photoacoustic detector in combination with a telecom NIR L-band laser source is reported. Amplitude and wavelength modulation schemes for photoacoustic signal generation are compared. A detection limit (3σ) of 8 ppmv was achieved for amplitude modulation mode with a 50-s averaging time for the H2S absorption near 1.6 µm. As compared to simulated spectra, the cantilever-enhanced photoacoustic detection approach in combination with the sufficiently stable and narrow bandwidth NIR laser is able to reproduce the rotationally resolved H2S spectrum at low pressures of 300 mbar.
DOI: 10.1007/s00340-016-6355-6
Library ID: AC11360024
URN: urn:nbn:at:at-ubtuw:3-1575
ISSN: 1432-0649
Organisation: E164 - Institut für Chemische Technologien und Analytik 
License URI: https://creativecommons.org/licenses/by/4.0/
Publication Type: Article
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