Exploring the Saturation Levels of Stimulated Raman Scattering in the Absolute Regime

Michel, D. T.; Depierreux, S.; Stenz, C.; Tassin, V.; Labaune, C.

doi:10.1103/physrevlett.104.255001

Cited by 25 publications

(16 citation statements)

References 21 publications

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“…7.49) [42,64,66,77,126,137,152,173,174,179,210,236,238,248]. This will enable, in particular, studies of three-dimensional biological structures as well as determination of the location and role of its specific constituent structural elements, which is of great importance in developing new-generation medicines and polymers, as well as in constructing complex spatial molecular structures.…”

Section: Laser-plasma Acceleration Of Charged Particlesmentioning

confidence: 98%

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Technical Applications of the Physics of High Energy Densities

Фортов¹

2016

Extreme States of Matter

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Section: Laser-plasma Acceleration Of Charged Particlesmentioning

confidence: 98%

“…The physics of shortwave electromagnetic radiation-plasma interactions exhibits significant special features and shows great promise from the standpoint of studies in high energy densities in laser plasma [2, 64,77,179,236,248]. As we saw in Chap.…”

Section: Laser-plasma Acceleration Of Charged Particlesmentioning

confidence: 99%

Technical Applications of the Physics of High Energy Densities

Фортов¹

2016

Extreme States of Matter

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“…The interplay between SRS and SBS has been observed in many experiments (Walsh et al, 1984;Labaune et al, 1997;Michel et al, 2010). The first experimental observation of this competitive phenomenon was made by Walsh et al (1984) in which they observed that the quenching of SRS plasma waves were strongly correlated to the initiation of SBS ion waves.…”

Section: Introductionmentioning

confidence: 94%

Study of coexisting stimulated Raman and Brillouin scattering at relativistic laser power

2014

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This paper presents a model to study the stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) simultaneously at relativistic laser power. At high intensity, the relativistic mass correction for the plasma electrons becomes significant and the plasma refractive index gets modified which leads to the relativistic self-focusing of the pump beam. This filamentation process affects the scattering processes (SRS and SBS) and at the same time the pump filamentation process also gets modified in the presence of the coexisting SRS and SBS due to the pump depletion. We have also demonstrated that the pump depletion and relativistic filamentation affects the back-reflectivity of scattered beams (SRS and SBS) significantly, for the coexistence case.

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“…[11][12][13] These experiments additionally identified the ability of CBET to rotate the polarization of the beams, suggesting that polarization rotation should be included when modeling systems with multiple CBET regions. 14,15 Direct-drive experiments used scattered-…”

Section: Introductionmentioning

confidence: 99%

Isolating and quantifying cross-beam energy transfer in direct-drive implosions on OMEGA and the National Ignition Facility

et al. 2016

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The angularly resolved mass ablation rates and ablation-front trajectories for Si-coated CH targets were measured in direct-drive inertial confinement fusion experiments to quantify cross-beam energy transfer (CBET) while constraining the hydrodynamic coupling. A polar-direct-drive laser configuration, where the equatorial laser beams were dropped and the polar beams were repointed from a symmetric direct-drive configuration, was used to limit CBET at the pole while allowing it to persist at the equator. The combination of low- and high-CBET conditions observed in the same implosion allowed for the effects of CBET on the ablation rate and ablation pressure to be determined. Hydrodynamic simulations performed without CBET agreed with the measured ablation rate and ablation-front trajectory at the pole of the target, confirming that the CBET effects on the pole are small. The simulated mass ablation rates and ablation-front trajectories were in excellent agreement with the measurements at all angles when a CBET model based on Randall's equations [C. J. Randall et al., Phys. Fluids 24, 1474 (1981)] was included into the simulations with a multiplier on the CBET gain factor. These measurements were performed on OMEGA and at the National Ignition Facility to access a wide range of plasma conditions, laser intensities, and laser beam geometries. The presence of the CBET gain multiplier required to match the data in all of the configurations tested suggests that additional physics effects, such as intensity variations caused by diffraction, polarization effects, or shortcomings of extending the 1-D Randall model to 3-D, should be explored to explain the differences in observed and predicted drive.

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Exploring the Saturation Levels of Stimulated Raman Scattering in the Absolute Regime

Cited by 25 publications

References 21 publications

Technical Applications of the Physics of High Energy Densities

Technical Applications of the Physics of High Energy Densities

Study of coexisting stimulated Raman and Brillouin scattering at relativistic laser power

Isolating and quantifying cross-beam energy transfer in direct-drive implosions on OMEGA and the National Ignition Facility

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