Enhanced Raman Scattering of Elliptical Laser Beam in a Collisional Plasma

被引：15

作者：

Singh, A. ^{[1
]}

Walia, K. ^{[1
]}

机构：

[1] Natl Inst Technol Jalandhar, Dept Phys, Jalandhar, India

来源：

CONTRIBUTIONS TO PLASMA PHYSICS | 2011年 / 51卷 / 09期

关键词：

Elliptical gaussian beam; self-focusing; electron plasma wave; collisional plasma; Raman scattering; PARAMETRIC-INSTABILITIES; STIMULATED BRILLOUIN; GENERATION; WAVES; PULSE; ELECTRONS; LIGHT;

D O I：

10.1002/ctpp.201000042

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

This paper presents the Enhanced Raman scattering of a elliptical laser beam in a collisional plasma. We have considered the mechanism of non-uniform heating of carriers along the wave-front, which is important in collisional plasma. The nonlinearity arising through non-uniform heating leads to redistribution of carriers, which modifies the background plasma density profile in a direction transverse to pump beam axis. This modification in density effects the incident laser beam, plasma wave and back-scattered beam. Non-linear differential equations for the beam width parameters of pump laser beam, plasma wave and back-scattered beam are set up and solved numerically. Numerical results predict the effect of self-focusing of waves on the back-scattered beam. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：788 / 797

页数：10

共 25 条

[1] SELF-FOCUSING AND DIFFRACTION OF LIGHT IN A NONLINEAR MEDIUM
AKHMANOV, SA
SUKHORUKOV, AP
KHOKHLOV, RV
[J]. SOVIET PHYSICS USPEKHI-USSR, 1968, 10 (05): : 609 - +
[2] 2-DIMENSIONAL STUDIES OF STIMULATED BRILLOUIN-SCATTERING, FILAMENTATION, AND SELF-FOCUSING INSTABILITIES OF LASER-LIGHT IN PLASMAS
AMIN, MR
CAPJACK, CE
FRYCZ, P
ROZMUS, W
TIKHONCHUK, VT
[J]. PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1993, 5 (10): : 3748 - 3764
[3] 2-DIMENSIONAL REGIMES OF SELF-FOCUSING, WAKE-FIELD GENERATION, AND INDUCED FOCUSING OF A SHORT INTENSE LASER-PULSE IN AN UNDERDENSE PLASMA
BULANOV, SV
PEGORARO, F
PUKHOV, AM
[J]. PHYSICAL REVIEW LETTERS, 1995, 74 (05) : 710 - 713
[4] DONALDSON TP, 1976, PHYS REV LETT, V36, P476
[5] PARAMETRIC-INSTABILITIES OF ELECTROMAGNETIC-WAVES IN PLASMAS
DRAKE, JF
KAW, PK
LEE, YC
SCHMIDT, G
LIU, CS
ROSENBLU.MN
[J]. PHYSICS OF FLUIDS, 1974, 17 (04) : 778 - 785
[6] Overview of plasma-based accelerator concepts
Esarey, E
Sprangle, P
Krall, J
Ting, A
[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 1996, 24 (02) : 252 - 288
[7] X-ray spectroscopy observation of fast ions generation in plasma produced by short low-contrast laser pulse irradiation of solid targets
Faenov, A. Ya.
Magunov, A. I.
Pikuz, T. A.
Skobelev, I. Yu
Gasilov, S. V.
Stagira, S.
Calegari, F.
Nisoli, M.
De Silvestri, S.
Poletto, L.
Villoresi, P.
Andreev, A. A.
[J]. LASER AND PARTICLE BEAMS, 2007, 25 (02) : 267 - 275
[8] Stimulated Brillouin and Raman scattering from a randomized laser beam in large inhomogeneous collisional plasmas. I. Experiment
Fuchs, J
Labaune, C
Depierreux, S
Tikhonchuk, VT
Baldis, HA
[J]. PHYSICS OF PLASMAS, 2000, 7 (11) : 4659 - 4668
[9] Hot electron production and heating by hot electrons in fast ignitor research
Key, MH
Cable, MD
Cowan, TE
Estabrook, KG
Hammel, BA
Hatchett, SP
Henry, EA
Hinkel, DE
Kilkenny, JD
Koch, JA
Kruer, WL
Langdon, AB
Lasinski, BF
Lee, RW
MacGowan, BJ
MacKinnon, A
Moody, JD
Moran, MJ
Offenberger, AA
Pennington, DM
Perry, MD
Phillips, TJ
Sangster, TC
Singh, MS
Stoyer, MA
Tabak, M
Tietbohl, GL
Tsukamoto, M
Wharton, K
Wilks, SC
[J]. PHYSICS OF PLASMAS, 1998, 5 (05) : 1966 - 1972
[10] Investigation of laser plasma instabilities using picosecond laser pulses
Kline, J. L.
Montgomery, D. S.
Yin, L.
Hardin, R. A.
Flippo, K. A.
Shimada, T.
Johnson, R. P.
Rose, H. A.
Albright, B. J.
[J]. 5TH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS (IFSA2007), 2008, 112

← 1 2 3 →