Self-focusing of a high-intensity laser in a collisional plasma under weak relativistic-ponderomotive nonlinearity

D.N. Gupta, Mohammad Islam, D.G. Jang, H. Suk, Dino Jaroszynski

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Self-focusing a laser beam in collisional plasma is investigated under the weak relativistic-ponderomotive nonlinearity. In this case, the plasma equilibrium density is modified and it causes generation of the nonlinearity due to the Ohmic heating of electrons, collisions, and the weak relativistic-ponderomotive force during the interaction of the laser beam with the plasma. Our theoretical and simulation results show that a significant nonlinearity in laser self-focusing can occur under the weak relativistic-ponderomotive regime for some appropriate simulation parameters.
LanguageEnglish
Article number123103
Number of pages5
JournalPhysics of Plasmas
Volume20
Issue number12
DOIs
Publication statusPublished - 9 Dec 2013

Fingerprint

collisional plasmas
self focusing
high power lasers
nonlinearity
laser beams
plasma equilibrium
ponderomotive forces
electron scattering
simulation
heating
causes
lasers
interactions

Keywords

  • laser heating
  • plasma density
  • high intensity laser pulse

Cite this

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abstract = "Self-focusing a laser beam in collisional plasma is investigated under the weak relativistic-ponderomotive nonlinearity. In this case, the plasma equilibrium density is modified and it causes generation of the nonlinearity due to the Ohmic heating of electrons, collisions, and the weak relativistic-ponderomotive force during the interaction of the laser beam with the plasma. Our theoretical and simulation results show that a significant nonlinearity in laser self-focusing can occur under the weak relativistic-ponderomotive regime for some appropriate simulation parameters.",
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Self-focusing of a high-intensity laser in a collisional plasma under weak relativistic-ponderomotive nonlinearity. / Gupta, D.N.; Islam, Mohammad; Jang, D.G.; Suk, H.; Jaroszynski, Dino.

In: Physics of Plasmas, Vol. 20, No. 12, 123103, 09.12.2013.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Self-focusing of a high-intensity laser in a collisional plasma under weak relativistic-ponderomotive nonlinearity

AU - Gupta, D.N.

AU - Islam, Mohammad

AU - Jang, D.G.

AU - Suk, H.

AU - Jaroszynski, Dino

PY - 2013/12/9

Y1 - 2013/12/9

N2 - Self-focusing a laser beam in collisional plasma is investigated under the weak relativistic-ponderomotive nonlinearity. In this case, the plasma equilibrium density is modified and it causes generation of the nonlinearity due to the Ohmic heating of electrons, collisions, and the weak relativistic-ponderomotive force during the interaction of the laser beam with the plasma. Our theoretical and simulation results show that a significant nonlinearity in laser self-focusing can occur under the weak relativistic-ponderomotive regime for some appropriate simulation parameters.

AB - Self-focusing a laser beam in collisional plasma is investigated under the weak relativistic-ponderomotive nonlinearity. In this case, the plasma equilibrium density is modified and it causes generation of the nonlinearity due to the Ohmic heating of electrons, collisions, and the weak relativistic-ponderomotive force during the interaction of the laser beam with the plasma. Our theoretical and simulation results show that a significant nonlinearity in laser self-focusing can occur under the weak relativistic-ponderomotive regime for some appropriate simulation parameters.

KW - laser heating

KW - plasma density

KW - high intensity laser pulse

U2 - 10.1063/1.4838195

DO - 10.1063/1.4838195

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VL - 20

JO - Physics of Plasmas

T2 - Physics of Plasmas

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