Experimental investigation of identical wavelength short light pulses crossing in underdense plasma

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Energy transfer between a long (3-10 ps) "pump" pulse and a short (400 fs) "seed" one, both at a wavelength of 1.057μm quasi counterpropagating in an underdense preformed plasma and produced from the ionization of a gas jet, was observed. Numerical simulations reveal that the energy transfer is due to the coupling involving ion acoustic waves excited in the Stimulated Brillouin Backscattering in the strong coupling regime. The plasma characteristics were tailored using a high-energy ionization laser beam and the plasma density was controlled using a Thomson scattering diagnostic. The energy exchange was observed for different gas (ion) types, pressures (plasma densities), polarization and intensities of the interacting beams.

Original languageEnglish
Title of host publicationHarnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond
PublisherSPIE
ISBN (Print)9780819476333
DOIs
Publication statusPublished - 1 Jan 2009
EventHarnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond - Prague, Czech Republic
Duration: 21 Apr 200923 Apr 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7359
ISSN (Print)0277-786X

Conference

ConferenceHarnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond
Country/TerritoryCzech Republic
CityPrague
Period21/04/0923/04/09

Keywords

  • Brillouin backscattering
  • Energy transfer
  • Parametric amplification
  • Short pulses
  • Strong coupling

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