Intense laser beam guiding in self-induced electron cavitation channel in underdense plasmas

被引：0

作者：

Cang, Yu ^{[1
]}

Yu, Wei ^{[1
]}

Wu, Hui-Chun ^{[2
]}

Xu, Han ^{[1
]}

Tian, You-Wei ^{[1
]}

机构：

[1] State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

[2] Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences

来源：

| 2007年 / Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom卷 / 16期

关键词：

Ponderomotive self-channelling; Relativistic self-focusing; Self-guiding; Self-induced electron cavitation;

D O I：

10.1088/1009-1963/16/2/028

中图分类号：

学科分类号：

摘要：

In underdense plasmas, the transverse ponderomotive force of an intense laser beam with Gaussian transverse profile expels electrons radially, and it can lead to an electron cavitation. An improved cavitation model with charge conservation constraint is applied to the determination of the width of the electron cavity. The envelope equation for laser spot size derived by using source-dependent expansion method is extended to including the electron cavity. The condition for self-guiding is given and illuminated by an effective potential for the laser spot size. The effects of the laser power, plasma density and energy dissipation on the self-guiding condition are discussed. © 2007 Chin. Phys. Soc. and IOP Publishing Ltd.

引用

页码：456 / 462

页数：6

共 4 条

[1] Intense laser beam guiding in self-induced electron cavitation channel in underdense plasmas
Cang Yu
Yu Wei
Wu Hui-Chun
Xu Han
Tian You-Wei
CHINESE PHYSICS, 2007, 16 (02): : 456 - 462
[2] Relativistic self-focusing in interaction of intense laser beam and exponential decay underdense inhomogeneous plasma
Zhang Geng
Xia Xiongping
14TH NATIONAL CONFERENCE ON LASER TECHNOLOGY AND OPTOELECTRONICS (LTO 2019), 2019, 11170
[3] Characteristics of intense laser self-focusing in a plasma channel
Tang, H
Guo, H
Liu, MW
Qiu, YL
Deng, DM
Kong, HJ
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2002, 41 (05) : 710 - 713
[4] Self-Guiding of Ultrashort Relativistically intense Laser Pulses to the Limit of Nonlinear Pump Depletion
Ralph, J. E.
Marsh, K. A.
Pak, A. E.
Lu, W.
Clayton, C. E.
Fang, F.
Tsung, F. S.
Mori, W. B.
Joshi, C.
ADVANCED ACCELERATOR CONCEPTS, 2009, 1086 : 196 - +

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