Effect of collisions on amplification of laser beams by Brillouin scattering in plasmas

K. A. Humphrey; R. M. G. M. Trines; F. Fiuza; D. C. Speirs; P. Norreys; R. A. Cairns; L. O. Silva; R. Bingham

doi:10.1063/1.4825356

Effect of collisions on amplification of laser beams by Brillouin scattering in plasmas

K. A. Humphrey^*, R. M. G. M. Trines, F. Fiuza, D. C. Speirs, P. Norreys, R. A. Cairns, L. O. Silva, R. Bingham

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

We report on particle in cell simulations of energy transfer between a laser pump beam and a counter-propagating seed beam using the Brillouin scattering process in uniform plasma including collisions. The results presented show that the ion acoustic waves excited through naturally occurring Brillouin scattering of the pump field are preferentially damped without affecting the driven Brillouin scattering process resulting from the beating of the pump and seed fields together. We find that collisions, including the effects of Landau damping, allow for a more efficient transfer of energy between the laser beams, and a significant reduction in the amount of seed pre-pulse produced.

Original language	English
Article number	102114
Number of pages	5
Journal	Physics of Plasmas
Volume	20
Issue number	10
DOIs	https://doi.org/10.1063/1.4825356
Publication status	Published - Oct 2013

Keywords

Energy-transfer
Compression
Pulse

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10.1063/1.4825356

Cairns_2013_PP_Effect
© 2013 AIP Publishing LLC
Final published version, 943 KB

Instabilities in non-thermal plasmas: Instabilities in Non-Thermal Plasmas
Cairns, R. A. (PI)
EPSRC
1/04/09 → 31/05/13
Project: Standard
Beam Driven Instabilities in Magnetized: Beam diven instabilities in magnetized plasmas
Cairns, R. A. (PI)
EPSRC
1/01/06 → 31/12/08
Project: Standard

Cite this

@article{6aee05679895491e83d8d6e2d2e4f0ec,

title = "Effect of collisions on amplification of laser beams by Brillouin scattering in plasmas",

abstract = "We report on particle in cell simulations of energy transfer between a laser pump beam and a counter-propagating seed beam using the Brillouin scattering process in uniform plasma including collisions. The results presented show that the ion acoustic waves excited through naturally occurring Brillouin scattering of the pump field are preferentially damped without affecting the driven Brillouin scattering process resulting from the beating of the pump and seed fields together. We find that collisions, including the effects of Landau damping, allow for a more efficient transfer of energy between the laser beams, and a significant reduction in the amount of seed pre-pulse produced.",

keywords = "Energy-transfer, Compression, Pulse",

author = "Humphrey, {K. A.} and Trines, {R. M. G. M.} and F. Fiuza and Speirs, {D. C.} and P. Norreys and Cairns, {R. A.} and Silva, {L. O.} and R. Bingham",

note = "Authors KH, RT, DCS, RAC, RB were supported by EPSRC grant EP/G04239X/1. ",

year = "2013",

month = oct,

doi = "10.1063/1.4825356",

language = "English",

volume = "20",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "10",

}

TY - JOUR

T1 - Effect of collisions on amplification of laser beams by Brillouin scattering in plasmas

AU - Humphrey, K. A.

AU - Trines, R. M. G. M.

AU - Fiuza, F.

AU - Speirs, D. C.

AU - Norreys, P.

AU - Cairns, R. A.

AU - Silva, L. O.

AU - Bingham, R.

N1 - Authors KH, RT, DCS, RAC, RB were supported by EPSRC grant EP/G04239X/1.

PY - 2013/10

Y1 - 2013/10

N2 - We report on particle in cell simulations of energy transfer between a laser pump beam and a counter-propagating seed beam using the Brillouin scattering process in uniform plasma including collisions. The results presented show that the ion acoustic waves excited through naturally occurring Brillouin scattering of the pump field are preferentially damped without affecting the driven Brillouin scattering process resulting from the beating of the pump and seed fields together. We find that collisions, including the effects of Landau damping, allow for a more efficient transfer of energy between the laser beams, and a significant reduction in the amount of seed pre-pulse produced.

AB - We report on particle in cell simulations of energy transfer between a laser pump beam and a counter-propagating seed beam using the Brillouin scattering process in uniform plasma including collisions. The results presented show that the ion acoustic waves excited through naturally occurring Brillouin scattering of the pump field are preferentially damped without affecting the driven Brillouin scattering process resulting from the beating of the pump and seed fields together. We find that collisions, including the effects of Landau damping, allow for a more efficient transfer of energy between the laser beams, and a significant reduction in the amount of seed pre-pulse produced.

KW - Energy-transfer

KW - Compression

KW - Pulse

U2 - 10.1063/1.4825356

DO - 10.1063/1.4825356

M3 - Article

SN - 1070-664X

VL - 20

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 10

M1 - 102114

ER -

Effect of collisions on amplification of laser beams by Brillouin scattering in plasmas

Abstract

Keywords

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Projects

Instabilities in non-thermal plasmas: Instabilities in Non-Thermal Plasmas

Beam Driven Instabilities in Magnetized: Beam diven instabilities in magnetized plasmas

Cite this