Boron Nitride plasma micro lens for high intensity laser pre-pulse suppression

被引：5
|
作者：
Katzir, Y. [1 ]
Ferber, Y. [1 ]
Penano, R. [2 ]
Hubbard, R. F. [2 ]
Sprangle, P. [2 ]
Zigler, A. [1 ]
机构：
[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[2] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 04期
关键词：
TEMPORAL CONTRAST; FEMTOSECOND; PROPAGATION;
D O I：
10.1364/OE.21.005077
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate that amplified spontaneous emission (ASE) and pre-pulses for high power lasers can be suppressed by propagating the pulse through a boron nitride plasma microlens. The microlens is created by ablating a boron-nitride (BN) disk with a central hole using an Nd:YAG laser. The plasma lens produced in the ablation process exhibits different focal lengths for the high intensity main pulse and low intensity pre-pulse that increases the main pulse/pre-pulse contrast ratio by one order of magnitude while maintaining high transmittance of the pulse energy. (C) 2013 Optical Society of America
引用
收藏
页码：5077 / 5085
页数：9
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