Title :
Kinetics of the nonlinear-optical crystal equivalent temperature during the interaction with single-mode high-power laser radiation
Author :
Doronkin, A.V. ; Konyashkin, A.V. ; Tyrtyshnyy, V.A. ; Myasnikov, D.V. ; Ryabushkin, O.A.
Author_Institution :
OOO NTO, IRE-Polus, Fryazino, Russia
Abstract :
Influence of the high-power laser radiation on the piezoelectric resonance in the nonlinear-optical KTiOPO4 crystal was observed. Equivalent crystal temperature can be directly determined from the piezoelectric resonance frequency during interaction of the laser radiation with crystals. Frequency kinetics of the different piezoelectric resonances of the KTiOPO4 crystal were observed for the different pump laser powers up to 14 W. The KTiOPO4 optical absorption coefficient was obtained from the kinetics data.
Keywords :
absorption coefficients; laser beam effects; nonlinear optics; optical pumping; piezoelectricity; potassium compounds; titanium compounds; KTiOPO4; equivalent crystal temperature; frequency kinetics; nonlinear optical crystal; optical absorption coefficient; piezoelectric resonance frequency; pump laser powers; single-mode high-power laser radiation; Absorption; Crystals; Kinetic theory; Laser excitation; Optical pumping; Power lasers; Pump lasers; Resonance; Resonant frequency; Temperature; KTiOPO4; equivalent temperature; high-power laser radiation; nonlinear-optical crystals; piezoelectric resonance;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441733
