J. Phys. IV France 04 (1994) C4-739-C4-742
Photoacoustic study of collisional effects on rotational relaxation processes induced by infrared multiphoton absorptionM. 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
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