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Proceedings Paper

Nonlinear reflection of laser radiation in Xe-containing dense gas mixtures and cryogenic solutions
Author(s): Andrei P. Burtsev; V. V. Bertsev; V. N. Bocharov
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Paper 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.

Paper Details

Date Published: 1 March 2001
PDF: 5 pages
Proc. SPIE 4351, Laser Optics 2000: High-Power Gas Lasers, (1 March 2001); doi: 10.1117/12.417708
Show Author Affiliations
Andrei P. Burtsev, St. Petersburg State Univ. (Russia)
V. V. Bertsev, St. Petersburg State Univ. (Russia)
V. N. Bocharov, St. Petersburg State Univ. (Russia)

Published in SPIE Proceedings Vol. 4351:
Laser Optics 2000: High-Power Gas Lasers
Oleg B. Danilov, Editor(s)

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