Suppression of Electron Ponderomotive Blowout and Relativistic Self-Focusing by the Occurrence of Raman Scattering and Plasma Heating

Tzeng, K. C.; Mori, W. B.

doi:10.1103/physrevlett.81.104

Cited by 80 publications

(42 citation statements)

References 22 publications

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“…Also, because there are a number of plasma periods (t p 2p͞v p ) within the pulse envelope, various instabilities such as Raman processes and laser-envelope modulations can cause laser beam breakup [10,11] and complicate the interpretation of the origin of electron acceleration [9,[12][13][14]. For instance, a recent analysis shows that the occurrence of Raman scattering and plasma heating will suppress both ponderomotive expulsion and RSF [15].…”

mentioning

confidence: 99%

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Electron Acceleration and the Propagation of Ultrashort High-Intensity Laser Pulses in Plasmas

et al. 2000

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confidence: 99%

“…For ultrashort high-intensity pulses (t ϳ t p ), the physics may be significantly different and simpler, in that Raman scattering may not be important [15][16][17]. However, no experimental results have yet been presented, due to the difficulty in producing high-intensity pulses with such short pulse durations.…”

mentioning

confidence: 99%

Electron Acceleration and the Propagation of Ultrashort High-Intensity Laser Pulses in Plasmas

et al. 2000

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“…[13][14][15] Tzeng et al 13 have shown that the plasma temperature can suppress the relativistic self-focusing of laser; Bergman and Eliasson 14 have studied the plasma dispersion relation in high temperature plasma; Li et al 15 have investigated the effect of plasma temperature on laser hosing instability. In these cases, the thermal velocity is comparable to the quiver velocity of the electrons in the laser fields and the electron mass is modulated by its thermal velocity too.…”

Section: Introductionmentioning

confidence: 99%

Effects of relativistic electron temperature on parametric instabilities for intense laser propagation in underdense plasma

et al. 2014

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This version is available at https://strathprints.strath.ac.uk/50988/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. Effects of relativistic electron temperature on stimulated Raman scattering and stimulated Brillouin scattering instabilities for high intensity lasers propagating in underdense plasma are studied theoretically and numerically. The dispersion relations for these instabilities are derived from the relativistic fluid equation. For a wide range of laser intensity and electron temperature, it is found that the maximum growth rate and the instability region in k-space can be reduced at relativistic electron temperature. Particle-in-cell simulations are carried out, which confirm the theoretical analysis. Effects of relativistic electron temperature on parametric instabilities for intense laser propagation in underdense plasma

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“…In the 2D slab geometry, P c is reduced by a factor √ 2 [33,34] , F es is enhanced by a factor 2, and F p ê r a 2 0 y r 2 0 exp(−2y 2 /r 2 0 ), where the laser vector potential has been taken as Equation (1). Then, one can rewrite Equations (11) and (12) in the 2D slab geometry as …”

Section: Upper-limit Laser Power and Lower-limit Plasma Densitymentioning

confidence: 99%

“…The extreme light infrastructure (ELI) will be able to provide hundredsof PW laser beams Correspondence to: Wei-Min Wang, Institute of Physics, CAS, P. O. Box 603 (33), Beijing 100190, China. Email: hbwwm1@iphy.ac.cn with intensity as high as 10 22 -10 25 Wcm −2 .…”

Section: Introductionmentioning

confidence: 99%

Upper-limit power for self-guided propagation of intense lasers in underdense plasma

Wang

Sheng

et al. 2013

High Pow Laser Sci Eng

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It is found that there is an upper-limit critical power for self-guided propagation of intense lasers in plasma in addition to the well-known lower-limit critical power set by the relativistic effect. Above this upper-limit critical power, the laser pulse experiences defocusing due to expulsion of local plasma electrons by the transverse ponderomotive force. Associated with the upper-limit power, a lower-limit critical plasma density is also found for a given laser spot size, below which self-focusing does not occur for any laser power. Both the upper-limit power and the lower-limit density are derived theoretically and verified by two-dimensional particle-in-cell simulations. The present study provides new guidance for experimental designs, where self-guided propagation of lasers is essential.

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Suppression of Electron Ponderomotive Blowout and Relativistic Self-Focusing by the Occurrence of Raman Scattering and Plasma Heating

Cited by 80 publications

References 22 publications

Electron Acceleration and the Propagation of Ultrashort High-Intensity Laser Pulses in Plasmas

Electron Acceleration and the Propagation of Ultrashort High-Intensity Laser Pulses in Plasmas

Effects of relativistic electron temperature on parametric instabilities for intense laser propagation in underdense plasma

Upper-limit power for self-guided propagation of intense lasers in underdense plasma

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