Photoacoustic Method for Obtaining Strength Characteristics of Thin Films

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621 Mat. Res. Soc. Symp. Proc. Vol. 356 ©1995 Materials Research Society

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Fig. 1. Typical oscillogramms of acoustic signals for different intensities of laser pulses: (a) irradiation energy below level that causes inelastic strains; (b) irradiation energy over this critical value (for NaCI). Graduations of the horisontal scale are 2 ms apart, the vertical scale is arbitrary.

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