MEASUREMENTS AND EMPIRICAL MODELING OF PURE CO2 ABSORPTION IN THE 2.3-MU-M REGION AT ROOM-TEMPERATURE - FAR WINGS, ALLOWED AND COLLISION-INDUCED BANDS

Authors
TONKOV MV FILIPPOV NN BERTSEV VV BOUANICH JP VANTHANH N BRODBECK C HARTMANN JM BOULET C THIBAULT F LEDOUCEN R
Citation
Mv. Tonkov et al., MEASUREMENTS AND EMPIRICAL MODELING OF PURE CO2 ABSORPTION IN THE 2.3-MU-M REGION AT ROOM-TEMPERATURE - FAR WINGS, ALLOWED AND COLLISION-INDUCED BANDS, Applied optics, 35(24), 1996, pp. 4863-4870
Citations number
29
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
35
Issue
24
Year of publication
1996
Pages
4863 - 4870
Database
ISI
SICI code
0003-6935(1996)35:24<4863:MAEMOP>2.0.ZU;2-S
Abstract
Measurements of pure CO2 absorption in the 2.3-mu m region are present ed. The 3800-4700-cm(-1) range has been investigated at room temperatu re for pressures in the 10-50-atm range by using long optical paths. P henomena that contribute to absorption are listed and analyzed, includ ing the contribution of far line wings as well as those of the central region of both allowed and collision-induced absorption bands. The pr esence of simultaneous transitions is also discussed. Simple and pract ical approaches are proposed for the modeling of absorption, which inc lude a line-shape correction factor chi that extends to approximately 600 cm(-1) from line centers.