期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 58, 期 11, 页码 2361-2372出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S1386-1425(02)00051-3
关键词
semiconductor laser; IR-spectroscopy; gas analysis; carbon dioxide; methane; formaldehyde
类别
Currently available semiconductor lasers for spectroscopy in the near- and mid-infrared region based on direct band-to-band transitions as gallium-arsenide, indium-phosphide, antimonides and lead-salt containing compounds will be discussed together with the main features of different tunable diode-laser absorption spectrometers for trace gas analysis. Measurements of atmospheric carbon dioxide with a room-temperature 2 mum indium-phosphide laser, applications of antimonide lasers for methane and formaldehyde sensing in the 3-4 mum range and a fast chemical sensor for methane flux measurements based on lead-salt diode-lasers operating near 7.8 mum will be presented. Published by Elsevier Science B.V.
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