Relativistic plasma shutter for ultraintense laser pulses

被引：33

作者：

Reed, Stephen A. ^{[1
,2
]}

Matsuoka, Takeshi ^{[1
,2
]}

Bulanov, Stepan ^{[1
,2
]}

Tampo, Motonobu ^{[3
]}

Chvykov, Vladimir ^{[1
,2
]}

Kalintchenko, Galina ^{[1
,2
]}

Rousseau, Pascal ^{[1
,2
]}

Yanovsky, Victor ^{[1
,2
]}

Kodama, Ryousuke ^{[3
]}

Litzenberg, Dale W. ^{[4
]}

Krushelnick, Karl ^{[1
,2
]}

Maksimchuk, Anatoly ^{[1
,2
]}

机构：

[1] Univ Michigan, FOCUS Ctr, Ann Arbor, MI 48109 USA

[2] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

[3] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[4] Univ Michigan, Dept Radiat Oncol, Ann Arbor, MI 48109 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 20期

关键词：

foils; laser beam effects; optical elements; SUPPRESSION; GENERATION;

D O I：

10.1063/1.3139860

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A relativistic plasma shutter technique is proposed and tested to remove the sub-100 ps pedestal of a high-intensity laser pulse. The shutter is an ultrathin foil placed before the target of interest. As the leading edge of the laser ionizes the shutter material it will expand into a relativistically underdense plasma allowing for the peak pulse to propagate through while rejecting the low intensity pedestal. An increase in the laser temporal contrast is demonstrated by measuring characteristic signatures in the accelerated proton spectra and directionality from the interaction of 30 TW pulses with ultrathin foils along with supporting hydrodynamic and particle-in-cell simulations.

引用

页数：3

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