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WANG Yan-bin, ZHOU Jian-hua, YU Xue-cai. Laser-Based Ultrasonic Generation in Metal Film With Nanometer Thickness Used in ICF Experiment[J]. Atomic Energy Science and Technology, 2012, 46(8): 978-981. DOI: 10.7538/yzk.2012.46.08.0978
Citation: WANG Yan-bin, ZHOU Jian-hua, YU Xue-cai. Laser-Based Ultrasonic Generation in Metal Film With Nanometer Thickness Used in ICF Experiment[J]. Atomic Energy Science and Technology, 2012, 46(8): 978-981. DOI: 10.7538/yzk.2012.46.08.0978
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Laser-Based Ultrasonic Generation in Metal Film With Nanometer Thickness Used in ICF Experiment

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  • The generation and detection of laser-based ultrasound were introduced. The experiment was performed. A beam of laser with pulse width of 7 ns produced by Q switch Nd:YAG was used to irradiate Al/Au/Ag metal films with thickness of 200 nm. The signal was detected by Michael interference method and transferred by Fourier method. The ultrasonic vibration frequencies excited in the sample are 32.36, 26.17 and 29.39 MHz, respectively. The work is valuable to detect nano- and micro-meter films used to ICF experiment for the future.
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