Investigation of plasma critical surface rippling by harmonics generation in laser plasmas

E. Rácz, I. B. Földes, S. Szatmári

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Experiments were carried out by a tightly focused, prepulse-free hybrid KrF excimer-dye laser system (700fs pulse duration, 248nm wavelength, 15mJ pulse energy). Intense 2ω, 3ω and near threshold 4ω were generated in laser plasmas on solid surfaces for p- and s-polarized 1.51017 W/cm2 radiation intensity. Directionality and polarization properties were investigated depending on the laser intensity and polarization. The observations showed diffuse propagation of harmonics for intensities above 1016 W/cm2 and the polarization of harmonics was mixed for the highest intensities. The explanation of these results is surface rippling of the plasma critical surface because of the Rayleigh-Taylor instability, which is an intrinsic consequence of the unstable balance between light pressure and plasma expansion.

Original languageEnglish
Title of host publicationPLASMA 2005
Subtitle of host publicationInt. Conf. PLASMA-2005 on Res. and Applic. of Plasmas; 3rd German-Polish Conf. on Plasma Diagnostics for Fusion Applic.; 5th French-Polish Seminar on Thermal Plasma in Space and Lab.
Pages291-294
Number of pages4
DOIs
Publication statusPublished - Jan 15 2006
EventPLASMA 2005: International Conference PLASMA-2005 on Research and Application of Plasmas; 3rd German-Polish Conference on Plasma Diagnostics for Fusion Applications; 5th French-Polish Seminar on Thermal Plasma in Space and Laboratory - Opole-Turawa, Poland
Duration: Sep 6 2005Sep 9 2005

Publication series

NameAIP Conference Proceedings
Volume812
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherPLASMA 2005: International Conference PLASMA-2005 on Research and Application of Plasmas; 3rd German-Polish Conference on Plasma Diagnostics for Fusion Applications; 5th French-Polish Seminar on Thermal Plasma in Space and Laboratory
CountryPoland
CityOpole-Turawa
Period9/6/059/9/05

Keywords

  • High harmonics generation
  • Laser-plasma interaction
  • Plasma production
  • Rayleigh-Taylor instability

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Rácz, E., Földes, I. B., & Szatmári, S. (2006). Investigation of plasma critical surface rippling by harmonics generation in laser plasmas. In PLASMA 2005: Int. Conf. PLASMA-2005 on Res. and Applic. of Plasmas; 3rd German-Polish Conf. on Plasma Diagnostics for Fusion Applic.; 5th French-Polish Seminar on Thermal Plasma in Space and Lab. (pp. 291-294). (AIP Conference Proceedings; Vol. 812). https://doi.org/10.1063/1.2168845