Multiphoton Photoconductivity and Laser Induced Damage in Alkali-Halide Crystals Under Picosecond Pulses from YAG:Nd Laser and its Harmonics

SV Garnov; AS Epifanov; SM Klimentov; AA Manenkov; AM Prokhorov

doi:10.1520/STP24404S

SYMPOSIA PAPER Published: 01 January 1988

STP24404S

Multiphoton Photoconductivity and Laser Induced Damage in Alkali-Halide Crystals Under Picosecond Pulses from YAG:Nd Laser and its Harmonics

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The results are presented of studying photoconductivity induced by picosecond pulses of the second, third, and fourth harmonics of YAG:Nd-laser in KCl, NaCl, KBr, KI crystals. The processes of multiphoton photoexcitation of nonequilibrium carriers are revealed up to the 4-th order and the corresponding multiphoton absorption coefficients are measured. Drift mobility of thermalized nonequilibrium electrons is measured. The role of multiphoton absorption in laser-induced damage in crystals is discussed. With a view to elucidating the role of impurities (inclusions) in the laser induced damage in alkali-halide crystals in the picosecond region, impurity photoconductivity is studies depending on thermal treatment of crystals.

Author Information

Garnov, SV

Epifanov, AS

Klimentov, SM

Manenkov, AA

Prokhorov, AM

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Details

Developed by Committee: F01

Pages: 68–78

DOI: 10.1520/STP24404S

ISBN-EB: 978-0-8031-5033-1

ISBN-13: 978-0-8031-4481-1

Multiphoton Photoconductivity and Laser Induced Damage in Alkali-Halide Crystals Under Picosecond Pulses from YAG:Nd Laser and its Harmonics

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