High-pressure absorption spectrum of CO$sub 2$ laser bands at 10 $mu$m

Journal Article · Mon Dec 15 04:00:00 EST 1975 · Appl. Phys. Lett., v. 27, no. 12, pp. 665-667

OSTI ID:4135089

Miller, J L; George, E V

The absorption coefficient at the center of several lines of the 961- and 1064-cm$sup -1$ bands of CO$sub 2$ has been measured for CO$sub 2$ and mixtures of CO$sub 2$ and N$sub 2$ and He at absolute pressures to 18 atm. The data are in good agreement with the theory of pressure-broadened non-Lorentzian overlapping lines, which predicts greater peak absorption than theories that calculate the spectrum as a sum of Lorentzian-shaped lines. (AIP)

• Research Organization: Department of Electrical Engineering and Computer Science, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• NSA Number: NSA-33-009163
• OSTI ID: 4135089
• Journal Information: Appl. Phys. Lett., v. 27, no. 12, pp. 665-667, Journal Name: Appl. Phys. Lett., v. 27, no. 12, pp. 665-667; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

*CARBON DIOXIDE LASERS-- ABSORPTION SPECTRA
420300* --Engineering--Lasers
ABSORPTION
COLLISIONS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
HIGH PRESSURE
INFRARED SPECTRA
LINE BROADENING
LINE WIDTHS
N42210* --Engineering--Facilities & Equipment--Lasers
PRESSURE DEPENDENCE
ROTATIONAL STATES
VIBRATIONAL STATES