1.
Appl Opt
; 36(15): 3212-6, 1997 May 20.
Article
in English
| MEDLINE
| ID: mdl-18253328
ABSTRACT
Photoacoustic spectroscopic studies on a mixture of six CO(2) isotopes ((12) C(16) O(2), (12) C(18) O(2), (13) C (16) O(2), (13) C(18) O(2), (16) O(12) C(18) O, and (16) O(13) C(18) O) in the wavelength range of 9-11 mum by use of a home-built high-pressure continuously tunable CO(2) laser with a bandwidth of 0.017 cm(-1) are discussed. The concentrations of all CO(2) isotopes present in the mixture could be determined with good accuracy. Furthermore, the previously unknown absorption cross sections of some important lines of the(12) C(18) O(2), (13) C(18) O(2), and (16)O (13) C(18) O isotopes in the 9-11-mum range are reported.