Scientific Results

Spectroscopic gas analyzers based on indium-phosphide, antimonide and lead-salt diode-lasers

Year: 2002

Authors: Werle P., Maurer K., Kormann R., Mucke R., D’Amato F., Lancia T., Popov A.

Autors Affiliation: Forschungszentrum Karlsruhe IMK, 82467 Garmisch-Partenkirchen, Germany; Max-Planck Institut für Chemie, 55128 Mainz, Germany; Infineon Technologies, 93049 Regensburg, Germany; Scienza Industria Technologia (SIT), 56127 Pisa, Italy; TLC Tecnosistemi S.A., 6928 Manno (TI), Switzerland; Ioffe Physico Technical Institute, 194021 St. Petersburg, Russian Federation

Abstract: 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.

Journal/Review: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

Volume: 58 (11)      Pages from: 2361  to: 2372

KeyWords: Indium phosphide; Phosphine derivative, article; Chemistry; Infrared spectrophotometry; Instrumentation, Antimony; Indium; Lead; Phosphines; Spectrophotometry, Infrared, Carbon dioxide; Formaldehyde; Gas fuel analysis; Laser tuning; Methane; Semiconducting antimony compounds; Semiconducting indium phosphide; Semiconductor lasers; Spectroscopic analysis, Gas analyzers, Infrared spectroscopy
DOI: 10.1016/S1386-1425(02)00051-3

Citations: 33
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