Accession Number : ADP007088

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

Corporate Author : MARYLAND UNIV COLLEGE PARK

Personal Author(s) : Durfee, C. G. ; Milchberg, H. M.

Report Date : 22 MAY 1992

Pagination or Media Count : 3

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.

Descriptors :   *PULSED LASERS, *COHERENT OPTICAL RADIATION, PLASMAS(PHYSICS), LASER BEAMS, OPTICAL IMAGES, YAG LASERS, SHORT WAVELENGTHS, COHERENT RADIATION, SYMPOSIA.

Subject Categories : Lasers and Masers
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE