@inproceedings{b81d66e33d34455e8baa50d690e693b1,
title = "Mid-infrared semiconductor laser based trace gas sensor technologies for environmental monitoring and industrial process control",
abstract = "Recent advances in the development of compact sensors based on mid-infrared continuous wave (CW), thermoelectrically cooled (TEC) and room temperature operated quantum cascade lasers (QCLs) for the detection, quantification and monitoring of trace gas species and their applications in environmental and industrial process analysis will be reported. These sensors employ a 2f wavelength modulation (WM) technique based on quartz enhanced photoacoustic spectroscopy (QEPAS) that achieves detection sensitivity at the ppb and sub ppb concentration levels. The merits of QEPAS include an ultra-compact, rugged sensing module, with wide dynamic range and immunity to environmental acoustic noise. QCLs are convenient QEPAS excitation sources that permit the targeting of strong fundamental rotational-vibrational transitions which are one to two orders of magnitude more intense in the mid-infrared than overtone transitions in the near infrared spectral region.",
keywords = "carbon monoxide, laser spectroscopy, nitric oxide, quantum cascade lasers, quartz enhanced photoacoustic spectroscopy, trace gas detection, wavelength modulation spectroscopy",
author = "Rafa{\l} Lewicki and Mohammad Jahjah and Yufei Ma and Tittel, \{Frank K.\} and Przemyslaw Stefanski and Jan Tarka",
year = "2013",
doi = "10.1117/12.2008701",
language = "英语",
isbn = "9780819494009",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Quantum Sensing and Nanophotonic Devices X",
note = "Quantum Sensing and Nanophotonic Devices X ; Conference date: 03-02-2013 Through 07-02-2013",
}