Photoelastic Visualization of Ultrasound Generated by Pulsed Laser

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	ZHANG Shouyu
	ZHANG Pengzhi
	SHEN Jianzhong
	DENG Jingjun
	YING Chongfu

关键词 ： 62.65.+k, 78.20.Hp

Abstract： We applied the dynamic photoelastic technique to visualize the ultrasound generated in a glass sample by an Nd: YAG pulsed laser. When a laser pulse was incident on the surface of the glass sample covered by thin layer of black ink, narrow pulses of longitudinal, shear, and surface acoustic waves were seen in the sample. The photoelastic picture also showed that the directivity patterns of ultrasound generated in the present case qualitatively agree with the theoretical prediction for the case of a normal surface-acting force.

Key words： 62.65.+k 78.20.Hp

出版日期: 1993-12-01

:	62.65.+k	(Acoustical properties of solids)
	78.20.Hp

引用本文:

ZHANG Shouyu;ZHANG Pengzhi;SHEN Jianzhong;DENG Jingjun;YING Chongfu. Photoelastic Visualization of Ultrasound Generated by Pulsed Laser[J]. 中国物理快报, 1993, 10(12): 734-736.
ZHANG Shouyu, ZHANG Pengzhi, SHEN Jianzhong, DENG Jingjun, YING Chongfu. Photoelastic Visualization of Ultrasound Generated by Pulsed Laser. Chin. Phys. Lett., 1993, 10(12): 734-736.

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https://cpl.iphy.ac.cn/CN/ 或 https://cpl.iphy.ac.cn/CN/Y1993/V10/I12/734