Femtosecond dynamics of short-scale-length laser plasmas

X. Liu, D. Umstadter

Research output: Contribution to journalConference articlepeer-review


With a time-resolved pump-probe setup, the dynamical interactions of intense 400-fs laser pulses with a solid target are studied with a time resolution of about 250 fs. The motion of the plasma critical surface is measured by the means of the doppler shift of the probe laser. It is found that when the average electron quiver energy (mv2os/2) becomes comparable to the electron thermal energy (kTe), the ponderomotive force of the high-intensity laser significantly reduces the thermal expansion of the laser-plasma.

Original languageEnglish (US)
Pages (from-to)103-109
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jul 8 1993
Externally publishedYes
EventShort-Pulse High-Intensity Lasers and Applications II 1993 - Los Angeles, United States
Duration: Jan 17 1993Jan 22 1993

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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