Numéro
J. Phys. IV France
Volume 04, Numéro C4, Avril 1994
3rd International Conference Laser M2P
Page(s) C4-739 - C4-742
DOI http://dx.doi.org/10.1051/jp4:19944203
3rd International Conference Laser M2P

J. Phys. IV France 04 (1994) C4-739-C4-742

DOI: 10.1051/jp4:19944203

Photoacoustic study of collisional effects on rotational relaxation processes induced by infrared multiphoton absorption

M. TERZIC1, D.D. MARKUSEV2 and J. JOVANOVIC-KUREPA2

1  University of Novi Sad, P.O. Box 224, 21001 Novi Sad, Serbia, Yugoslavia
2  Institute of Physics, P.O. Box 57, 11001 Belgrade, Serbia, Yugoslavia


Abstract
The novel experimental approach is applied to investigate the cross sections for rotational relaxation [MATH] in the SF6-Ar mixtures irradiated by pulsed CO2 laser line. The applied method is the pulsed photoacoustic technique, and it is based on proposal for [MATH] determination by transmission spectroscopy technique. The collisional effects have been investigated for the 0,l-0,8 J/cm2 laser fluence range. Also, the collisional effects on rotational and translational temperature (TR) for SF6-Ar mixtures have been calculated.



© EDP Sciences 1994