@article{ea7874a2fcb840c5951bbbb7d5248479,
title = "Quantum cascade laser-based analyzer for hydrogen sulfide detection at sub-parts-per-million levels",
abstract = "Due to its high toxicity, monitoring of hydrogen sulfide (H2S) concentration is essential in many industrial sites (such as natural gas extraction sites, petroleum refineries, geothermal power plants, or waste water treatment facilities), which require sub-parts-per-million sensitivities. We report on a quantum cascade laserbased spectroscopic system for detection of H2S in the midinfrared at ~7.2 μm. We present a sensor design utilizing Herriott multipass cell and a wavelength modulation spectroscopy to achieve a detection limit of 140 parts per billion for 1-s integration time.",
keywords = "Hydrogen sulfide, Laser spectroscopy, Molecular spectroscopy, Quantum cascade laser, Wavelength modulation spectroscopy",
author = "Michal Nikodem and Karol Krzempek and Dorota Stachowiak and Gerard Wysocki",
note = "Funding Information: This work was supported by the National Centre for Research and Development (NCBiR) award LIDER/023/ 379/L-5/13/NCBR/2014. M.N. acknowledges a scholarship for young scientists from the Polish Ministry of Science and Higher Education. G.W. acknowledges partial funding of his research effort by the Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department of Energy, under Award Number DE-AR0000540. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Publisher Copyright: {\textcopyright} The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.",
year = "2018",
doi = "10.1117/1.OE.57.1.011019",
language = "English (US)",
volume = "57",
journal = "Optical Engineering",
issn = "0091-3286",
publisher = "SPIE",
number = "1",
}