Near-infrared laser spectrometer with sub-Doppler resolution, high sensitivity, and wide tunability-a case study in the 1.65-/spl mu/m region of methyl iodine spectrum

Author

Ishibashi, C. ; Sasada, H.

Author_Institution

Dept. of Phys., Keio Univ., Yokohama, Japan

Volume

3

fYear

1999

fDate

Aug. 30 1999-Sept. 3 1999

Firstpage

993

Abstract

We demonstrate the potential capability of the cavity-enhanced spectrometer for molecular spectroscopy. We take the 1.65-/spl mu/m spectrum of methyl iodine (CH/sub 3/I) as a sample for the following reasons. First, the global spectrum with a Doppler-limited resolution has been recorded, and has not been analyzed yet. Second, there are a lot of absorption lines extending in a wide wavelength range, and the hyperfine structures and Q-branch lines are overlapped in the Doppler-limited resolution spectrum and can be resolved by the present spectrometer.

Keywords

hyperfine structure; infrared spectra; infrared spectroscopy; organic compounds; sensitivity; 1.65 mum; 1.65-/spl mu/m region; Doppler-limited resolution; Doppler-limited resolution spectrum; Q-branch lines; absorption lines; cavity-enhanced spectrometer; global spectrum; high sensitivity; hyperfine structures; methyl iodine; methyl iodine spectrum; molecular spectroscopy; near-infrared laser spectrometer; optical resolving power; sub-Doppler resolution; wide tunability; Absorption; Electronic mail; Fabry-Perot; Frequency; Gas lasers; Laser theory; Optimized production technology; Physics; Spectroscopy; Stationary state;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on

Conference_Location

Seoul, South Korea

Print_ISBN

0-7803-5661-6

Type

conf

DOI

10.1109/CLEOPR.1999.817937

Filename

817937