Nonlinear reflection of laser radiation in Xe-containing dense gas mixtures and cryogenic solutions

Andrei P. Burtsev; V. V. Bertsev; V. N. Bocharov

doi:10.1117/12.417708

1 March 2001 Nonlinear reflection of laser radiation in Xe-containing dense gas mixtures and cryogenic solutions

Andrei P. Burtsev, V. V. Bertsev, V. N. Bocharov

Proceedings Volume 4351, Laser Optics 2000: High-Power Gas Lasers; (2001) https://doi.org/10.1117/12.417708
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

Nonlinear reflection of focused laser radiation (222-413 nm, H₂-SRS-converted depolarized XeCl-excimer laser output) in Xe-containing binary gas mixtures and cryogenic solutions was studied. The effect of strong enhancement of unsaturated reflectivity, especially pronounced and frequency selective for admixture of Cl, Br-substituted hydro-carbons (CF₂Cl₂, CF₃Cl, CF₃Br) was observed, whereas no effect was found when fluorides (CF₃H, NF₃) or oxygen were added. For linearly polarized (lambda) equals 308 nm radiation reflectivities increased twofold up to approximately 0.8 at the intensity approximately 5 (DOT) 10¹⁰ wt(DOT)cm^-2. Nonlinear reflection at (lambda) equals 308 nm in low-temperature solutions of Xe (20% mol) in LAr (at 140 K) and LKr (at 170 K) was observed and analyzed. Close to second order pump intensity dependences of reflection, photo-acoustic signals and secondary emission were found.

Citation Download Citation

Andrei P. Burtsev, V. V. Bertsev, and V. N. Bocharov "Nonlinear reflection of laser radiation in Xe-containing dense gas mixtures and cryogenic solutions", Proc. SPIE 4351, Laser Optics 2000: High-Power Gas Lasers, (1 March 2001); https://doi.org/10.1117/12.417708

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