Backward Raman amplification in the Langmuir wavebreaking regime

被引：48

作者：

Toroker, Z. ^{[1
]}

Malkin, V. M. ^{[2
]}

Fisch, N. J. ^{[2
]}

机构：

[1] Technion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel

[2] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08540 USA

来源：

PHYSICS OF PLASMAS | 2014年 / 21卷 / 11期

基金：

美国国家科学基金会;

关键词：

LASER-PULSE AMPLIFICATION; PERFECTLY MATCHED LAYER; NUMERICAL-SIMULATION; PLASMA; SCATTERING; COMPRESSION; OSCILLATIONS; AMPLIFIERS; CODE;

D O I：

10.1063/1.4902362

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：

In plasma-based backward Raman amplifiers, the output pulse intensity increases with the input pump pulse intensity, as long as the Langmuir wave mediating energy transfer from the pump to the seed pulse remains intact. However, at high pump intensity, the Langmuir wave breaks, at which point the amplification efficiency may no longer increase with the pump intensity. Numerical simulations presented here, employing a one-dimensional Vlasov-Maxwell code, show that, although the amplification efficiency remains high when the pump only mildly exceeds the wavebreaking threshold, the efficiency drops precipitously at larger pump intensities. (C) 2014 AIP Publishing LLC.

引用

页数：10

共 58 条

[41] Spectral characteristics of ultra-short laser pulses in plasma amplifiers [J].

Riconda, C. ;

Weber, S. ;

Lancia, L. ;

Marques, J. -R. ;

Mourou, G. A. ;

Fuchs, J. .

PHYSICS OF PLASMAS, 2013, 20 (08)

[42] Superradiant amplification of an ultrashort laser pulse in a plasma by a counterpropagating pump [J].

Shvets, G ;

Fisch, NJ ;

Pukhov, A ;

Meyer-ter-Vehn, J .

PHYSICAL REVIEW LETTERS, 1998, 81 (22) :4879-4882

[43] Pump side scattering in ultrapowerful backward Raman amplifiers [J].

Solodov, A.A. ;

Malkin, V.M. ;

Fisch, N.J. .

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2004, 69 (6 2) :066413-1

[44] Random density inhomogeneities and focusability of the output pulses for plasma-based powerful backward Raman amplifiers [J].

Solodov, AA ;

Malkin, VM ;

Fisch, NJ .

PHYSICS OF PLASMAS, 2003, 10 (06) :2540-2544

[45] COMPRESSION OF AMPLIFIED CHIRPED OPTICAL PULSES [J].

STRICKLAND, D ;

MOUROU, G .

OPTICS COMMUNICATIONS, 1985, 56 (03) :219-221

[46] Threshold for electron trapping nonlinearity in Langmuir waves [J].

Strozzi, D. J. ;

Williams, E. A. ;

Rose, H. A. ;

Hinkel, D. E. ;

Langdon, A. B. ;

Banks, J. W. .

PHYSICS OF PLASMAS, 2012, 19 (11)

[47] Geometrical constraints on plasma couplers for Raman compression [J].

Toroker, Z. ;

Malkin, V. M. ;

Balakin, A. A. ;

Fraiman, G. M. ;

Fisch, N. J. .

PHYSICS OF PLASMAS, 2012, 19 (08)

[48] Seed Laser Chirping for Enhanced Backward Raman Amplification in Plasmas [J].

Toroker, Z. ;

Malkin, V. M. ;

Fisch, N. J. .

PHYSICAL REVIEW LETTERS, 2012, 109 (08)

[49] Simulations of efficient Raman amplification into the multipetawatt regime [J].

Trines, R. M. G. M. ;

Fiuza, F. ;

Bingham, R. ;

Fonseca, R. A. ;

Silva, L. O. ;

Cairns, R. A. ;

Norreys, P. A. .

NATURE PHYSICS, 2011, 7 (01) :87-92

[50] Suppression of superluminous precursors in high-power backward Raman amplifiers [J].

Tsidulko, YA ;

Malkin, VM ;

Fisch, NJ .

PHYSICAL REVIEW LETTERS, 2002, 88 (23) :2350041-2350044

← 1 2 3 4 5 6 →