14 December 2016 Laser generation of ultrasound and ultrasound velocity measurements in glasses
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Proceedings Volume 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics; 101760S (2016) https://doi.org/10.1117/12.2268232
Event: Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 2016, Khabarovsk, Russia
Abstract
Laser generation of longitudinal ultrasonic waves in the quartz glass without of the sputtered absorbing metal layer is experimentally studied. For exaltation of ultrasound, the Q-switched solid-state laser having of laser-pulse duration 25 nanoseconds is used. Registration of ultrasound performed by non-contact broadband receiver – the laser interferometer that have of frequency range 0.5 – 80 MHz. Installation for precision measurements of ultrasonic waves velocity in solids on the basis of non-contact optical methods of excitation and reception of ultrasound is presented. Results of measurements of velocity of longitudinal ultrasonic waves in samples made of quartz glass with the thickness 1.5 – 100 mm are given. The expanded uncertainty of measurements makes 0.01 – 0.5 %.
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P. V. Bazylev, P. V. Bazylev, I. Ya. Krumgolts, I. Ya. Krumgolts, V. A. Lugovoy, V. A. Lugovoy, } "Laser generation of ultrasound and ultrasound velocity measurements in glasses", Proc. SPIE 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 101760S (14 December 2016); doi: 10.1117/12.2268232; https://doi.org/10.1117/12.2268232
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