Impulsive Optic-Acoustic Effect of CO2, SF6 and NH3 Molecules
- 1 October 1971
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 10 (10) , 1303
- https://doi.org/10.1143/jjap.10.1303
Abstract
A rapid change of pressure of gas is observed by using a condenser microphone when a CO2 laser pulse is incident on the various kinds of gases such as CO2, SF6 and NH3 in an absorption cell. By analysing a wave form of the pressure change, the relaxation times of vibration-translation interaction of the relevant levels of molecules are obtained. Acoustic waves are also generated by the laser pulse and superimposed with the above mentioned pressure wave. It is found that a polarity of the acoustic wave of CO2 is inverted from those of SF6 and NH3.Keywords
This publication has 14 references indexed in Scilit:
- Negative Magnetoresistance of Boat Grown GaAsJapanese Journal of Applied Physics, 1970
- Acoustic Waves Excited byQ-Switched CO2LaserJapanese Journal of Applied Physics, 1970
- Interpretation of Spectrophone Results for CO2The Journal of Chemical Physics, 1970
- Organic liquid CO2laser beam finderIEEE Journal of Quantum Electronics, 1970
- Sound Waves Excited by CO2 Q-switched LaserJournal of Applied Physics, 1969
- Effects of CO2, He, and N2 on the Lifetimes of the 00°1 and 10°0 CO2 Laser Levels and on Pulsed Gain at 10.6 μJournal of Applied Physics, 1967
- Vibrational Relaxation Measurements in CUsing an Induced-Fluorescence TechniquePhysical Review Letters, 1966
- Measurement of vibrational relaxation times by the spectrophone. Application to CH4, CO2, N2O, COS, NH3 and HCNTransactions of the Faraday Society, 1966
- Vibrational Relaxation in Carbon Dioxide/Water-Vapor MixturesThe Journal of the Acoustical Society of America, 1965
- III. Action of an intermittent beam of radiant heat upon gaseous matterProceedings of the Royal Society of London, 1881