Experimental confirmation of electron figure-8 motion in a strong laser field

被引：2

作者：

Pratt, Brittni ^{[1
]}

Atkinson, Nicholas ^{[1
]}

Hodge, Daniel ^{[1
]}

Romero, Mahonri ^{[1
]}

Schulzke, Christoph ^{[1
]}

Sun, Yance ^{[1
]}

Ware, Michael ^{[1
]}

Peatross, Justin ^{[1
]}

机构：

[1] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA

来源：

PHYSICAL REVIEW A | 2021年 / 103卷 / 03期

基金：

美国国家科学基金会;

关键词：

NONLINEAR THOMSON SCATTERING; HARMONIC-GENERATION; INTENSITY; RADIATION; LIGHT; BEAMS;

D O I：

10.1103/PhysRevA.103.L031102

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We measure polarization-resolved fundamental, second, and third harmonic nonlinear Thomson scattering out the side of a laser focus with 10(18) W/cm(2). The separate measured polarization components are each associated with a distinct dimension of predicted electron figure-8 motion. Taken together, the measured angular emission patterns for the two polarizations unambiguously confirm the figure-8 motion. Electrons are donated from low-density helium (10(-3) to 1 Torr) ionized early during the laser pulse. Time-resolved single-photon detection is used to distinguish signal from noise.

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页数：6

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