Abstract
When the molecules in a gas are photolyzed by a short exitation pulse, the resulting initial velocity distribution can be broader and have a different mean velocity than the velocity distribution the gas has in thermal equilibrium. The velocity distribution then relaxes into thermal equilibrium, the mechanism for this relaxation being collisional. Using time-resolved Doppler spectroscopy, the corresponding relaxation time for C3F7I at 0.1 Torr has been measured to be approximately 5 μs [1], for example.
© 1995 Optical Society of America
PDF ArticleMore Like This
J. Nicholson, W. Rudolph, J. McIver, R. Tate, and G. Hager
CWF25 Conference on Lasers and Electro-Optics (CLEO:S&I) 1995
M. V. Zagidullin, V. I. Igoshin, V. A. Katulin, and N. L. Kuprianov
TUB12 Conference on Lasers and Electro-Optics (CLEO:S&I) 1984
J. W. Nicholson, W. Rudolph, and G. Hager
CThS5 Conference on Lasers and Electro-Optics (CLEO:S&I) 1996