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Title: Appearance of Density Cavitations in the Laser Wake in Simulations of High Intensity Laser-Plasma Interactions

Abstract

Nonlinear interactions of high intensity, ultrashort laser pulses with underdense plasmas produce many interesting features that may appear in computer simulations. One of these features commonly observed in Particle-In-Cell (PIC) simulations is the spontaneous appearance of long-lived density cavitations in the plasma wake region behind the laser pulse. To study these cavitations, several small 2D PIC simulations are run in which plasma density, density ramps, total simulation time, laser pulsewidth, laser intensity, and laser polarization parameters have been varied. Based on the simulation results, some possible aspects of an experiment designed to directly detect these structures are discussed.

Authors:
 [1]
  1. Department of Electrical Engineering University of California at Los Angeles, Los Angeles, CA 90095 (United States)
Publication Date:
OSTI Identifier:
21255226
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1086; Journal Issue: 1; Conference: 13. advanced accelerator concepts workshop, Santa Cruz, CA (United States), 27 Jul - 2 Aug 2008; Other Information: DOI: 10.1063/1.3080912; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAVITATION; COMPUTERIZED SIMULATION; DENSITY; INTERACTIONS; LASERS; NONLINEAR PROBLEMS; PLASMA; PLASMA DENSITY; PLASMA PRODUCTION; POLARIZATION; PULSES; TURBULENCE; WAKEFIELD ACCELERATORS

Citation Formats

Wang, T -L. Appearance of Density Cavitations in the Laser Wake in Simulations of High Intensity Laser-Plasma Interactions. United States: N. p., 2009. Web. doi:10.1063/1.3080912.
Wang, T -L. Appearance of Density Cavitations in the Laser Wake in Simulations of High Intensity Laser-Plasma Interactions. United States. https://doi.org/10.1063/1.3080912
Wang, T -L. 2009. "Appearance of Density Cavitations in the Laser Wake in Simulations of High Intensity Laser-Plasma Interactions". United States. https://doi.org/10.1063/1.3080912.
@article{osti_21255226,
title = {Appearance of Density Cavitations in the Laser Wake in Simulations of High Intensity Laser-Plasma Interactions},
author = {Wang, T -L},
abstractNote = {Nonlinear interactions of high intensity, ultrashort laser pulses with underdense plasmas produce many interesting features that may appear in computer simulations. One of these features commonly observed in Particle-In-Cell (PIC) simulations is the spontaneous appearance of long-lived density cavitations in the plasma wake region behind the laser pulse. To study these cavitations, several small 2D PIC simulations are run in which plasma density, density ramps, total simulation time, laser pulsewidth, laser intensity, and laser polarization parameters have been varied. Based on the simulation results, some possible aspects of an experiment designed to directly detect these structures are discussed.},
doi = {10.1063/1.3080912},
url = {https://www.osti.gov/biblio/21255226}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1086,
place = {United States},
year = {Thu Jan 22 00:00:00 EST 2009},
month = {Thu Jan 22 00:00:00 EST 2009}
}