Pump-Probe Investigation of Picosecond laser-Gas Target Interactions,

Abstract

We report on a time-resolved investigation of the hydrodynamics of a laser-produced plasma. A 100 ps pulse is focused into a chamber filled with xenon for various pulse energies and pressures. This pulse (the pump pulse) forms a plasma, which is probed by a second pulse (the probe pulse) with a variable delay of up to 2.5 ns. The gradients in the plasma density profile produce a lensing effect on the probe pulse. The beam transmitted through the plasma is viewed with a CCD camera. The diffraction pattern of the probe pulse can be seen by subtracting the image of the first pulse beam from the image produced by the two-pulse beam.

Document Details

Document Type
Technical Report
Publication Date
May 22, 1992
Accession Number
ADP007088

Entities

People

  • C. G. Durfee
  • H. M. Milchberg

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • California
  • Coherent Radiation
  • Demographic Cohorts
  • Diffraction
  • Gases
  • Hydrodynamics
  • Laser Gases
  • Picosecond Time
  • Radiation

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Optical Physics and Photonics.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers