QUASI-CONTINUOUS WAVE STIMULATED RAMAN TECHNIQUE FOR LOCAL METHANE CONCENTRATION MEASUREMENTS AT ATMOSPHERIC-PRESSURE

Authors
PINETTE TC YIN HQ LAURENDEAU NM
Citation
Tc. Pinette et al., QUASI-CONTINUOUS WAVE STIMULATED RAMAN TECHNIQUE FOR LOCAL METHANE CONCENTRATION MEASUREMENTS AT ATMOSPHERIC-PRESSURE, Applied spectroscopy, 49(10), 1995, pp. 1507-1512
Citations number
16
Categorie Soggetti
Instument & Instrumentation",Spectroscopy
Journal title
Applied spectroscopy → ACNP
ISSN journal
00037028
Volume
49
Issue
10
Year of publication
1995
Pages
1507 - 1512
Database
ISI
SICI code
0003-7028(1995)49:10<1507:QWSRTF>2.0.ZU;2-W
Abstract
We report the application of quasi-continuous wave (cw) inverse stimul ated Raman spectroscopy (SRS) to the quantitative measurement of metha ne concentrations in atmospheric mixtures near room temperature. The q uasi-cw SRS signal, with the use of the nu(1) fundamental of methane ( 2916 cm(-1)), is shown to be proportional to the powers of both the pu mp and probe lasers as well as to the methane concentration. The curre nt minimum detectable signal corresponds to similar to 200 ppm (v/v).