Preliminary results of heterodyne detection with quantum-cascade lasers in the 9 microm 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 microm 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.
Parvitte
B
B
Groupe de Spectrométrie Moléculaire et Atmosphérique, UMR CNRS 6089, UFR Sciences Exactes et Naturelles-Moulin de la Housse, BP 1039, 51687 Reims Cedex 2, France. bertrand.parvitte@univ-reims.fr
Joly
L
L
Zéninari
V
V
Courtois
D
D
D000388:Air / Q000032:analysis; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation / Q000379:methods*; D007834:Lasers; D010126:Ozone / Q000737:chemistry; D013057:Spectrum Analysis / Q000295:instrumentation / Q000379:methods
D010126:Ozone