Abstract
A time-resolved infrared-ultraviolet double-resonance technique is used to characterize specific rovibrational states pumped by a pulsed CO2 laser within the ν4 vibrational ladder of D2CO. The roles of rotational and quasi-resonant rovibrational relaxation, requiring, respectively, ≤1 and ~3 gas-kinetic collisions, are studied. The rotational specificity of the latter suggests that a collision-assisted sequence of infrared absorption steps is able to account for the selective initial stages of multiple-photon excitation in formaldehyde.
© 1981 Optical Society of America
Full Article | PDF ArticleMore Like This
Brian J. Orr and Gary F. Nutt
Opt. Lett. 5(1) 12-14 (1980)
Jay R. Ackerhalt, Harold W. Galbraith, and John C. Goldstein
Opt. Lett. 6(8) 377-379 (1981)
V. N. Bagratashvili, Yu. G. Vainer, V. S. Doljikov, V. S. Letokhov, A. A. Makarov, L. P. Malyavkin, E. A. Ryabov, and E. G. Silkis
Opt. Lett. 6(3) 148-150 (1981)