Optical transmission and reflection of a plasma produced in nanosecond laser induced air breakdown

被引:0
作者
Mandieh, M. H. [1 ]
Akbari, M. J. [1 ]
Babaei, Z. [1 ]
机构
[1] Iran Univ Sci & Technol, Dept Phys, Tehran, Iran
来源
XX INTERNATIONAL SYMPOSIUM ON HIGH-POWER LASER SYSTEMS AND APPLICATIONS 2014 | 2015年 / 9255卷
关键词
Laser induced optical breakdown; Air breakdown; High power Nd:YAG laser; Plasma formation; Probe transmission and reflection; ABSORPTION;
D O I
10.1117/12.2065659
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, we investigate dynamics of optical breakdown in air induced by a pump-probe laser beam technique. The optical breakdown was generated by an Nd:YAG laser beam (operating at 10 ns pulse duration and 1064 nm wavelength). A small part of the beam was separated from the main beam by an optical splitter and was aligned to probe the breakdown plasma transversely. Monitoring the time resolved reflectivity from the breakdown plasma may give information on critical density and together with its transmittivity through the plasma provides information on plasma absorptivity. The results of this experiment can be also used to describe dynamics of breakdown plasma evolution.
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页数:9
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