Abstract

Self-focusing and self-defocusing of 1.6-nsec CO₂ laser pulses were observed in SF₆ gas for several selected 10-μm P-branch lines. The lines P(8), P(10), P(14), and P(16) self-focused, P(28) defocused, and either effect occurred at P(20), depending on the incident energy. The self-focusing was found to depend on incident fluence rather than on intensity and weakly on He buffer. Under the appropriate conditions beam filamentation occurred.

© 1981 Optical Society of America

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)

Self-focusing in SF₆

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

Doppler-free continuous-wave phase-conjugate spectrum of SF₆ by resonant degenerate four-wave mixing at 10.6 μm

P. Aubourg, J. P. Bettini, G. P. Agrawal, P. Cottin, D. Guérin, O. Meunier, and J. L. Boulnois
Opt. Lett. 6(8) 383-385 (1981)

Self-focusing in CS₂ at 10.6 μm

M. Mohebi, P. F. Aiello, G. Reali, M. J. Soileau, and E. W. Van Stryland
Opt. Lett. 10(8) 396-398 (1985)

Absorption of pulsed CO₂-laser radiation by SF₆ at 140 K

John L. Lyman, Robert G. Anderson, Robert A. Fisher, and B. J. Feldman
Opt. Lett. 3(6) 238-240 (1978)