Advanced model for SBS of a randomized laser beam and application to polarization smoothing experiments with preformed underdense plasmas

V. T. Tikhonchuk; J. Fuchs; C. Labaune; S. Depierreux; H. A. Baldis; S. Hüller; J. Myatt; D. Pesme

doi:10.1117/12.425641

Advanced model for SBS of a randomized laser beam and application to polarization smoothing experiments with preformed underdense plasmas

V. T. Tikhonchuk
, J. Fuchs
, C. Labaune
, S. Depierreux
, H. A. Baldis
, S. Hüller
, J. Myatt
, D. Pesme

Research output: Contribution to journal › Conference article › peer-review

Abstract

A model is presented, which describes the stimulated Brillouin scattering (SBS) of a randomized laser beam interacting with an underdense, expanding plasma. The model accounts for the serf-focusing of speckles in the regime where plasma heating has an important effect on speckle self-focusing and on SBS threshold and reflectivity. The model exhibits a good agreement with SBS levels measured at the LULI multi-beam facility for a broad range of the laser and plasma parameters and both types of beam smoothing - RPP and polarization smoothing (PS). The model and experiments confirm that the PS technique allows to control the SBS level more efficiently than RPP.

Original language	English
Pages (from-to)	388-391
Number of pages	4
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4424
DOIs	https://doi.org/10.1117/12.425641
Publication status	Published - 1 Jan 2001
Event	ECLIM 2000: 26th European Conference on Laser Interaction with Matter - Prague, Czech Republic Duration: 12 Jun 2000 → 16 Jun 2000

Keywords

Collisions
Laser speckle
Ponderomotive force
Randomized beam
Self-focusing
Stimulated scattering

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10.1117/12.425641

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Tikhonchuk, V. T., Fuchs, J., Labaune, C., Depierreux, S., Baldis, H. A., Hüller, S., Myatt, J., & Pesme, D. (2001). Advanced model for SBS of a randomized laser beam and application to polarization smoothing experiments with preformed underdense plasmas. Proceedings of SPIE - The International Society for Optical Engineering, 4424, 388-391. https://doi.org/10.1117/12.425641

@article{33572da0dd4649ab882d52cb90a8426f,

title = "Advanced model for SBS of a randomized laser beam and application to polarization smoothing experiments with preformed underdense plasmas",

abstract = "A model is presented, which describes the stimulated Brillouin scattering (SBS) of a randomized laser beam interacting with an underdense, expanding plasma. The model accounts for the serf-focusing of speckles in the regime where plasma heating has an important effect on speckle self-focusing and on SBS threshold and reflectivity. The model exhibits a good agreement with SBS levels measured at the LULI multi-beam facility for a broad range of the laser and plasma parameters and both types of beam smoothing - RPP and polarization smoothing (PS). The model and experiments confirm that the PS technique allows to control the SBS level more efficiently than RPP.",

keywords = "Collisions, Laser speckle, Ponderomotive force, Randomized beam, Self-focusing, Stimulated scattering",

author = "Tikhonchuk, \{V. T.\} and J. Fuchs and C. Labaune and S. Depierreux and Baldis, \{H. A.\} and S. H{\"u}ller and J. Myatt and D. Pesme",

year = "2001",

month = jan,

day = "1",

doi = "10.1117/12.425641",

language = "English",

volume = "4424",

pages = "388--391",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

note = "ECLIM 2000: 26th European Conference on Laser Interaction with Matter ; Conference date: 12-06-2000 Through 16-06-2000",

}

Tikhonchuk, VT, Fuchs, J, Labaune, C, Depierreux, S, Baldis, HA, Hüller, S, Myatt, J & Pesme, D 2001, 'Advanced model for SBS of a randomized laser beam and application to polarization smoothing experiments with preformed underdense plasmas', Proceedings of SPIE - The International Society for Optical Engineering, vol. 4424, pp. 388-391. https://doi.org/10.1117/12.425641

Advanced model for SBS of a randomized laser beam and application to polarization smoothing experiments with preformed underdense plasmas. / Tikhonchuk, V. T.; Fuchs, J.; Labaune, C. et al.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4424, 01.01.2001, p. 388-391.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Advanced model for SBS of a randomized laser beam and application to polarization smoothing experiments with preformed underdense plasmas

AU - Tikhonchuk, V. T.

AU - Fuchs, J.

AU - Labaune, C.

AU - Depierreux, S.

AU - Baldis, H. A.

AU - Hüller, S.

AU - Myatt, J.

AU - Pesme, D.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - A model is presented, which describes the stimulated Brillouin scattering (SBS) of a randomized laser beam interacting with an underdense, expanding plasma. The model accounts for the serf-focusing of speckles in the regime where plasma heating has an important effect on speckle self-focusing and on SBS threshold and reflectivity. The model exhibits a good agreement with SBS levels measured at the LULI multi-beam facility for a broad range of the laser and plasma parameters and both types of beam smoothing - RPP and polarization smoothing (PS). The model and experiments confirm that the PS technique allows to control the SBS level more efficiently than RPP.

AB - A model is presented, which describes the stimulated Brillouin scattering (SBS) of a randomized laser beam interacting with an underdense, expanding plasma. The model accounts for the serf-focusing of speckles in the regime where plasma heating has an important effect on speckle self-focusing and on SBS threshold and reflectivity. The model exhibits a good agreement with SBS levels measured at the LULI multi-beam facility for a broad range of the laser and plasma parameters and both types of beam smoothing - RPP and polarization smoothing (PS). The model and experiments confirm that the PS technique allows to control the SBS level more efficiently than RPP.

KW - Collisions

KW - Laser speckle

KW - Ponderomotive force

KW - Randomized beam

KW - Self-focusing

KW - Stimulated scattering

U2 - 10.1117/12.425641

DO - 10.1117/12.425641

M3 - Conference article

AN - SCOPUS:0034936285

SN - 0277-786X

VL - 4424

SP - 388

EP - 391

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - ECLIM 2000: 26th European Conference on Laser Interaction with Matter

Y2 - 12 June 2000 through 16 June 2000

ER -

Advanced model for SBS of a randomized laser beam and application to polarization smoothing experiments with preformed underdense plasmas

Abstract

Keywords

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