Influences of plasma shielding and rarefaction wave on impulse coupling coefficient

zhang yu-zhu; wang guang-an; shen zhong-hua; ni xiao-wu; lu jian

Volume 19 Issue 04

Apr. 2007

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Article Navigation > High Power Laser and Particle Beams > 2007 > 19(04): 0-

jiao chunye, wang feng, liu shenye, et al. Full aperture backscatter signal analysis of laser with hohlraum on Shenguang Ⅱ laser facility[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

zhang yu-zhu, wang guang-an, shen zhong-hua, et al. Influences of plasma shielding and rarefaction wave on impulse coupling coefficient[J]. High Power Laser and Particle Beams, 2007, 19.

jiao chunye, wang feng, liu shenye, et al. Full aperture backscatter signal analysis of laser with hohlraum on Shenguang Ⅱ laser facility[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

zhang yu-zhu, wang guang-an, shen zhong-hua, et al. Influences of plasma shielding and rarefaction wave on impulse coupling coefficient[J]. High Power Laser and Particle Beams, 2007, 19.

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Influences of plasma shielding and rarefaction wave on impulse coupling coefficient

1.
Department of Applied Physics,Nanjing University of Science and Technology,Nanjing 210094,China

Publish Date: 2007-04-15

Abstract

Abstract

The relationship between the impulse coupling coefficient and the distance of the target from focus at different incident laser energy, and the relationship between impulse coupling coefficient and laser spot diameter at different incident laser intensity were studied by applying Nd:YAG laser pulse on the Al(Cu) target. The experiments show that the target position corresponding to the peak impulse coupling coefficient moves towards to the lens with the increase of the laser energy, and the increase of the optimum intensity is small. These prove that the plasma shielding induces decreases impulse coupling coefficient to decrease after the peak value. On the other hand impulse coupling coefficient increases with the increase of the laser spot diameter in a linear way at the same incident la
- plasma shielding,
- rarefaction wave,
- impulse coupling coefficient,
- mechanical effect

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