Abstract

Several experiments have been reported that relate to the measurement of the collisionless intramolecular energy transfer and dephasing rates for SF₆. These measured relaxation times vary from less than 30 psec to 3 μsec. In addition, most measurements yield relaxation times that are comparable with the optical-pulse duration of the laser used in the measurement. We consider the effects of inhomogeneous and homogeneous dephasing processes in the optical interaction. The intensity and phase fluctuations in the laser and consequently the finite bandwidth of the optical source significantly affect this measurement. We present a simple model to account for the observed correlation with the optical-pulse duration.

© 1981 Optical Society of America

Self-focusing in SF₆

Jay R. Ackerhalt, Harold W. Galbraith, and John C. Goldstein
Opt. Lett. 6(8) 377-379 (1981)

Optical coherent transient measurements of velocity-changing collisions in SF₆

B. Comaskey, R. E. Scotti, and R. L. Shoemaker
Opt. Lett. 6(1) 45-47 (1981)

Self-focusing of 10-μm laser pulses in SF₆

Andrew V. Nowak and David O. Ham
Opt. Lett. 6(4) 185-187 (1981)

ν₃ vibrational ladder of SF₆

Chris W. Patterson, Burton J. Krohn, and A. S. Pine
Opt. Lett. 6(1) 39-41 (1981)

Self-focusing of CO₂ laser pulses in low-pressure SF₆

P. Bernard, P. Galarneau, and S. L. Chin
Opt. Lett. 6(3) 139-141 (1981)