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Abstract : Parameters of the acoustic signals AS excited in the massive Al, Be and Cu mirrors by TEA CO2- and Nd : glass-laser pulses were investigated. Correlations between the AS parameters and an emergence of different types of laser-induced damage such as evaporation of heat insulated defects, melting and optical breakdown off irradiated surface have been found. The possibility to make a nondisturbing prediction of the metal mirror resistance to laser-induced damage has been shown.

Keywords : laser accessories laser beam effects mirrors photoacoustic effect CO sub 2 laser Nd:glass laser optoacoustic effect laser optics laser induced damage evaporation heat insulated defects melting optical breakdown surfaces Al Be Cu





Autor: N.E. Aver-Anov Yu. A. Baloshin K.F. Bukhanov I.V. Pavlishin Yu. V. Sud-Enkov V.I. Yurevich

Fuente: https://hal.archives-ouvertes.fr/



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