Absolute frequency measurement of the saturated absorption lines of methane in the 1.66 mu m region

Authors
Ishibashi, C Kourogi, M Imai, K Widiyatmoko, B Onae, A Sasada, H
Citation
C. Ishibashi et al., Absolute frequency measurement of the saturated absorption lines of methane in the 1.66 mu m region, OPT COMMUN, 161(4-6), 1999, pp. 223-226
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
00304018 → ACNP
Volume
161
Issue
4-6
Year of publication
1999
Pages
223 - 226
Database
ISI
SICI code
0030-4018(19990315)161:4-6<223:AFMOTS>2.0.ZU;2-3
Abstract
We have determined the absolute frequencies of the R(0) and Q(1) transition s of the 2 nu(3) band of (CH4)-C-12 in the 1.66-mu m region to be 180.345 0 65 08(37) and 180.021 253 10(61) THz. The numbers in parentheses are the st andard deviations in units of the last digit of the quoted frequencies. We have used the 1.54-mu m saturated absorption line of (C2H2)-C-13 as a frequ ency reference and an optical frequency comb generator for bridging the fre quency difference of 14 THz between the 1.66- and 1.54-mu m radiations. (C) 1999 Elsevier Science B.V. All rights reserved.