Title :
Influence of number density and transition cross-section on rapid passage effects in pulsed quantum-cascade laser based spectrometers
Author :
McCulloch, M.T. ; Duxbury, G. ; Langford, N.
Author_Institution :
Dept. of Phys., Strathclyde Univ., Glasgow, UK
Abstract :
We show how rapid passage effects in molecular gases are influenced by the number density, transition cross-section and reorientation lifetime. Data will be presented that compares rapid passage in ammonia and isotopologues of methyl chloride.
Keywords :
gas sensors; high-speed optical techniques; measurement by laser beam; optical self-focusing; quantum cascade lasers; spectrometers; ammonia; chirped pulse; isotopologues; methyl chloride; molecular gases; number density; pulsed laser; quantum-cascade laser; rapid passage effects; reorientation lifetime; self-focusing; spectrometers; transition cross-section;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
