外文题目: Crater-like structures induced by intense laser
作者: Zhang, H.; Shen, B. F.; Wang, W. P.; Wang, N. W.; Zhang, H.; Li, S. S.; Zhai, S. H.; Li, J. F.; Wang, X. L.; Xu, R. J.; Leng, Y. X.; Liang, X. Y.; Li, R. X.; Xu, Z. Z.
刊名: Appl. Phys. Lett.
年: 2017 卷: 111 期: 18 文章编号：184104
英文关键词:

IMPACT CRATER; DAMAGE; COMPRESSION; MECHANISMS; ABLATION; ORIGIN; SILICA
英文摘要:
Crater-like structures are experimentally studied with an ultrashort, ultraintense laser pulse with an intensity of 1.5 x 10(18) W/cm(2), irradiating borosilicate glass targets, which extends laser-induced craters to the region of relativistic intensities. The morphology of the crater-like structures is measured accurately using a three-dimensional laser scanning confocal microscope and a scanning electron microscope. The experimental results indicate that a circular bowl shape is formed with a depth-to-diameter ratio of about 1/5, which is similar to that of meteorite impact craters. A plasma fireball model is applied to analyze the experimental results. Studies show that catastrophic asteroid strikes may be investigated by irradiating foils with intense laser pulses. (C) 2017 Author(s).


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1063/1.5010050


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