Preliminary results of heterodyne detection with quantum-cascade lasers in the 9 μm region

In this paper, we describe recent results in mid-infrared heterodyne detection using quantum-cascade (QC) lasers as local oscillator (LO). In the 9 μm range, the heterodyne detection technique was first developed with CO 2 lasers and then with Pb-salt diode lasers. Quantum-cascade lasers are promisi...

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Published inSpectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 60; no. 14; pp. 3285 - 3290
Main Authors Parvitte, B., Joly, L., Zéninari, V., Courtois, D.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2004
Subjects
Diode laser
Gas laser
Heterodyne
Infrared
Gas laser
Infrared
Diode laser
Heterodyne
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Summary:In this paper, we describe recent results in mid-infrared heterodyne detection using quantum-cascade (QC) lasers as local oscillator (LO). In the 9 μm range, the heterodyne detection technique was first developed with CO 2 lasers and then with Pb-salt diode lasers. Quantum-cascade lasers are promising high quality tunable mid-infrared sources. We developed a quantum-cascade laser based heterodyne spectrometer. Atmospheric absorption spectra of ozone are presented.
ISSN:1386-1425
DOI:10.1016/j.saa.2003.12.053