Influence of laser contrast on high-order harmonic generation from solid-density plasma surfaces

Jian Gao; Feng Liu; Xulei Ge; Yanqing Deng; Guobo Zhang; Yuan Fang; Wenqing Wei; Su Yang; Xiaohui Yuan; Min Chen; Zhengming Sheng; Jie Zhang

doi:10.3788/COL201715.081902

Influence of laser contrast on high-order harmonic generation from solid-density plasma surfaces

Jian Gao, Feng Liu, Xulei Ge, Yanqing Deng, Guobo Zhang, Yuan Fang, Wenqing Wei, Su Yang, Xiaohui Yuan, Min Chen, Zhengming Sheng, Jie Zhang

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Abstract

The influence of laser temporal contrast on high-order harmonic generation from intense laser interactions with solid-density plasma surfaces is experimentally studied. A switchable plasma mirror system is set up to improve the contrast by two orders of magnitude at 10 ps prior to the main peak. By using the plasma mirror and tuning the prepulse, the dependence of high-order harmonic generation on laser contrast is investigated. Harmonics up to the 21st order via the mechanism of coherent wake emission are observed only when the targets are irradiated by high contrast laser pulses by applying the plasma mirror.

Original language	English
Article number	081902
Number of pages	4
Journal	Chinese Optics Letters
Volume	15
Issue number	8
Early online date	15 May 2017
DOIs	https://doi.org/10.3788/COL201715.081902
Publication status	Published - 10 Aug 2017

Keywords

high-order harmonic generation
solid-density plasma
plasma mirror system
laser contrast

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10.3788/COL201715.081902

Gao-etal-COL-2017-Influence-of-laser-contrast-on-high-order-harmonic-generationAccepted author manuscript, 579 KB

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title = "Influence of laser contrast on high-order harmonic generation from solid-density plasma surfaces",

abstract = "The influence of laser temporal contrast on high-order harmonic generation from intense laser interactions with solid-density plasma surfaces is experimentally studied. A switchable plasma mirror system is set up to improve the contrast by two orders of magnitude at 10 ps prior to the main peak. By using the plasma mirror and tuning the prepulse, the dependence of high-order harmonic generation on laser contrast is investigated. Harmonics up to the 21st order via the mechanism of coherent wake emission are observed only when the targets are irradiated by high contrast laser pulses by applying the plasma mirror.",

keywords = "high-order harmonic generation, solid-density plasma, plasma mirror system, laser contrast",

author = "Jian Gao and Feng Liu and Xulei Ge and Yanqing Deng and Guobo Zhang and Yuan Fang and Wenqing Wei and Su Yang and Xiaohui Yuan and Min Chen and Zhengming Sheng and Jie Zhang",

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T1 - Influence of laser contrast on high-order harmonic generation from solid-density plasma surfaces

AU - Gao, Jian

AU - Liu, Feng

AU - Ge, Xulei

AU - Deng, Yanqing

AU - Zhang, Guobo

AU - Fang, Yuan

AU - Wei, Wenqing

AU - Yang, Su

AU - Yuan, Xiaohui

AU - Chen, Min

AU - Sheng, Zhengming

AU - Zhang, Jie

PY - 2017/8/10

Y1 - 2017/8/10

N2 - The influence of laser temporal contrast on high-order harmonic generation from intense laser interactions with solid-density plasma surfaces is experimentally studied. A switchable plasma mirror system is set up to improve the contrast by two orders of magnitude at 10 ps prior to the main peak. By using the plasma mirror and tuning the prepulse, the dependence of high-order harmonic generation on laser contrast is investigated. Harmonics up to the 21st order via the mechanism of coherent wake emission are observed only when the targets are irradiated by high contrast laser pulses by applying the plasma mirror.

AB - The influence of laser temporal contrast on high-order harmonic generation from intense laser interactions with solid-density plasma surfaces is experimentally studied. A switchable plasma mirror system is set up to improve the contrast by two orders of magnitude at 10 ps prior to the main peak. By using the plasma mirror and tuning the prepulse, the dependence of high-order harmonic generation on laser contrast is investigated. Harmonics up to the 21st order via the mechanism of coherent wake emission are observed only when the targets are irradiated by high contrast laser pulses by applying the plasma mirror.

KW - high-order harmonic generation

KW - solid-density plasma

KW - plasma mirror system

KW - laser contrast

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