Coherent combs in ionization by intense and short laser pulses

被引：9
|
作者：
Krajewska, K. [1 ,2 ]
Kaminski, J. Z. [1 ]
机构：
[1] Univ Warsaw, Inst Theoret Phys, Fac Phys, Pasteura 5, PL-02093 Warsaw, Poland
[2] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA
来源：
PHYSICS LETTERS A | 2016年 / 380卷 / 13期
关键词：
Ionization; Short laser pulse; Strong-field approximation; Coherent combs; Radiation pressure; POLARIZED-LIGHT; NOBEL LECTURE; FIELD; PHOTOIONIZATION; ELECTRONS; PHYSICS;
D O I：
10.1016/j.physleta.2015.11.038
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Photoionization of positive ions by a train of intense, short laser pulses is investigated within the relativistic strong field approximation, using the velocity gauge. The formation of broad peak structures in the high-energy domain of photoelectrons is observed and interpreted. The emergence of coherent photoelectron energy combs within these structures is demonstrated, and it is interpreted as the consequence of the Fraunhofer-type interference/diffraction of probability amplitudes of ionization from individual pulses comprising the train. Extensions to the coherent angular combs are also studied, and effects related to the radiation pressure are presented. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：1247 / 1252
页数：6
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