Rotational relaxation rate constants for CO2
- 15 April 1974
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 24 (8) , 375-377
- https://doi.org/10.1063/1.1655223
Abstract
Rotational relaxation rate constants, krot, have been measured for the CO2 00°1 level in three kinds of amplifiers: one using CO2 alone and two others using mixtures of CO2–He and CO2–N2. The experiment consists of perturbing the CO2 00°1 level with a ∼2‐nsec saturating pulse at P(20) in the 10.4‐μ band and monitoring the subsequent repopulation of the J = 19 rotational state with a probe beam set at P(20) in the 9.4‐μ band. The determined rate constants are kCO2–CO2 = 1.3±0.2, kCO2–He = 0.6±0.1, and kCO2–N2 = 1.2±0.2, all in units of 107 sec−1 Torr−1.Keywords
This publication has 6 references indexed in Scilit:
- Rotational relaxation effects in short-pulse CO2 amplifiersApplied Physics Letters, 1973
- Measurement of the 10°0–02°0 relaxation rate in CO2Applied Physics Letters, 1973
- Influence of Vibrational, Rotational, and Reorientational Relaxation on Pulse Amplification in Molecular AmplifiersPhysical Review A, 1973
- Vibration-vibration energy transfer in the v3mode of CO2IEEE Journal of Quantum Electronics, 1973
- COLLISIONAL RELAXATION OF CO2 ROTATIONAL LEVELS BY N2 AND HeApplied Physics Letters, 1969
- ROTATIONAL RELAXATION RATE OF CO2 LASER LEVELSApplied Physics Letters, 1969