Thresholds of absolute instabilities driven by a broadband laser

Follett, R. K.; Shaw, J. G.; Myatt, J. F.; Dorrer, C.; Froula, D. H.; Palastro, J. P.

doi:10.1063/1.5098479

Title: Thresholds of absolute instabilities driven by a broadband laser

Abstract

Absolute instability thresholds for stimulated Raman scattering and two-plasmon decay driven by a broadband laser pulse are evaluated numerically. The scalings of the calculated thresholds with density scale length, temperature, and central wavelength are qualitatively similar to existing analytic results. The threshold values, yet, reflect significant quantitative differences. Comparisons between thresholds calculated for various broadband power spectra suggest a universal scaling of the threshold intensity with laser coherence time ($$\tau_{c}$$). For SRS I_thr ∝ $$\tau_{c}^{-1/3}$$, and for TPD I_thr ∝ $$\tau_{c}^{-1/2}$$ .

Authors:

Follett, R. K. ^[1];

^[1]; Myatt, J. F. ^[2]; Dorrer, C. ^[1];

^[1];

^[1]

Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Univ. of Alberta, Edmonton, AB (Canada)

Publication Date:: Tue Jun 11 00:00:00 EDT 2019

Research Org.:: Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1530731

Alternate Identifier(s):: OSTI ID: 1525561

Report Number(s):: 2019-82, 1505
Journal ID: ISSN 1070-664X; 2019-82, 1505, 2465

Grant/Contract Number:: NA0003856

Resource Type:: Accepted Manuscript

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 26; Journal Issue: 6; Journal ID: ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats


                    Follett, R. K., Shaw, J. G., Myatt, J. F., Dorrer, C., Froula, D. H., and Palastro, J. P. Thresholds of absolute instabilities driven by a broadband laser.  United States: N. p., 2019. 
Web.  doi:10.1063/1.5098479.

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                    Follett, R. K., Shaw, J. G., Myatt, J. F., Dorrer, C., Froula, D. H., & Palastro, J. P. Thresholds of absolute instabilities driven by a broadband laser.  United States.  https://doi.org/10.1063/1.5098479

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                    Follett, R. K., Shaw, J. G., Myatt, J. F., Dorrer, C., Froula, D. H., and Palastro, J. P. Tue .  
"Thresholds of absolute instabilities driven by a broadband laser".  United States.  https://doi.org/10.1063/1.5098479.  https://www.osti.gov/servlets/purl/1530731.

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@article{osti_1530731,

  title        = {Thresholds of absolute instabilities driven by a broadband laser},

  author       = {Follett, R. K. and Shaw, J. G. and Myatt, J. F. and Dorrer, C. and Froula, D. H. and Palastro, J. P.},

  abstractNote = {Absolute instability thresholds for stimulated Raman scattering and two-plasmon decay driven by a broadband laser pulse are evaluated numerically. The scalings of the calculated thresholds with density scale length, temperature, and central wavelength are qualitatively similar to existing analytic results. The threshold values, yet, reflect significant quantitative differences. Comparisons between thresholds calculated for various broadband power spectra suggest a universal scaling of the threshold intensity with laser coherence time ($\tau_{c}$). For SRS Ithr ∝ $\tau_{c}^{-1/3}$, and for TPD Ithr ∝ $\tau_{c}^{-1/2}$ .},

  doi          = {10.1063/1.5098479},

  journal      = {Physics of Plasmas},

  number       = 6,

  volume       = 26,

  place        = {United States},

  year         = {Tue Jun 11 00:00:00 EDT 2019},

  month        = {Tue Jun 11 00:00:00 EDT 2019}

}

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Title: Thresholds of absolute instabilities driven by a broadband laser

Abstract

Citation Formats

Kinetic enhancement of Raman backscatter, and electron acoustic Thomson scatter journal, January 2007

Effects of large laser bandwidth on stimulated Raman scattering instability in underdense plasma journal, May 2015

Suppressing Two-Plasmon Decay with Laser Frequency Detuning journal, March 2018

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Mitigation of cross-beam energy transfer in inertial-confinement-fusion plasmas with enhanced laser bandwidth journal, June 2018

Reduction of 3ω 0 /2 emission from laser‐produced plasmas with broad bandwidth, induced spatial incoherence at 0.53 μm journal, June 1991

Resonance absorption of a broadband laser pulse journal, December 2018

The Physics of Inertial Fusion book, January 2004

Ultrafast optical parametric amplifiers journal, January 2003

Generating energetic electrons through staged acceleration in the two-plasmon-decay instability in inertial confinement fusion journal, April 2012

Effects of Finite-Bandwidth Driver Pumps on the Parametric-Decay Instability journal, May 1976

On the inhomogeneous two-plasmon instability journal, January 1983

Spectral and far-field broadening due to stimulated rotational Raman scattering driven by the Nike krypton fluoride laser journal, January 2017

Parametric Instabilities in Inhomogeneous Media journal, August 1972

The upgrade to the OMEGA laser system journal, January 1995

Direct-drive inertial confinement fusion: A review journal, November 2015

Parametric instabilities in the presence of space-time random fluctuations journal, January 1977

Random phase plate hot spots and their effect on stimulated Brillouin backscatter and self‐focusing journal, June 1995

Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media journal, May 1966

Reduction of Raman Scattering in a Plasma to Convective Levels Using Induced Spatial Incoherence journal, February 1989

The Piecewise Parabolic Method (PPM) for gas-dynamical simulations journal, April 1984

A wave-based model for cross-beam energy transfer in direct-drive inertial confinement fusion journal, May 2017

Effects of finite-bandwidth driver on the parametric instability journal, January 1974

The effect of bandwidth on the convective Raman instability in inhomogeneous plasmas journal, October 1991

Raman and Brillouin scattering of electromagnetic waves in inhomogeneous plasmas journal, January 1974

Parametric instabilities of electromagnetic waves in plasmas journal, January 1974

Framework of the parametric instabilities in the presence of space‐time fluctuations in homogeneous and inhomogeneous plasma. II. Applications journal, August 1989

Stimulated Raman sidescattering with the effects of oblique incidence journal, January 1985

Kinetic enhancement of Raman backscatter, and electron acoustic Thomson scatter
journal, January 2007

Effects of large laser bandwidth on stimulated Raman scattering instability in underdense plasma
journal, May 2015

Suppressing Two-Plasmon Decay with Laser Frequency Detuning
journal, March 2018

Simulations and measurements of hot-electron generation driven by the multibeam two-plasmon-decay instability
journal, October 2017

Particle code study of the influence of non-monochromaticity of laser light on stimulated Raman scattering in laser-irradiated plasmas
journal, May 1986

Numerical study of bandwidth effect on stimulated Raman backscattering in nonlinear regime
journal, June 2018

Mitigation of cross-beam energy transfer in inertial-confinement-fusion plasmas with enhanced laser bandwidth
journal, June 2018

Reduction of 3ω ₀ /2 emission from laser‐produced plasmas with broad bandwidth, induced spatial incoherence at 0.53 μm
journal, June 1991

Resonance absorption of a broadband laser pulse
journal, December 2018

The Physics of Inertial Fusion
book, January 2004

Ultrafast optical parametric amplifiers
journal, January 2003

Generating energetic electrons through staged acceleration in the two-plasmon-decay instability in inertial confinement fusion
journal, April 2012

Effects of Finite-Bandwidth Driver Pumps on the Parametric-Decay Instability
journal, May 1976

On the inhomogeneous two-plasmon instability
journal, January 1983

Spectral and far-field broadening due to stimulated rotational Raman scattering driven by the Nike krypton fluoride laser
journal, January 2017

Parametric Instabilities in Inhomogeneous Media
journal, August 1972

The upgrade to the OMEGA laser system
journal, January 1995

Direct-drive inertial confinement fusion: A review
journal, November 2015

Parametric instabilities in the presence of space-time random fluctuations
journal, January 1977

Random phase plate hot spots and their effect on stimulated Brillouin backscatter and self‐focusing
journal, June 1995

Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media
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Reduction of Raman Scattering in a Plasma to Convective Levels Using Induced Spatial Incoherence
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The Piecewise Parabolic Method (PPM) for gas-dynamical simulations
journal, April 1984

A wave-based model for cross-beam energy transfer in direct-drive inertial confinement fusion
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Effects of finite-bandwidth driver on the parametric instability
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The effect of bandwidth on the convective Raman instability in inhomogeneous plasmas
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