Accession Number:

ADA214195

Title:

Frequency Shift Induced in Laser Pulses by Plasma Density Variations

Descriptive Note:

Interim rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1989-10-25

Pagination or Media Count:

19.0

Abstract:

An analytical theory is developed which describes how a radiation pulses becomes modified as it propagates through a plasma with arbitrary temporal and spatial density variations. Expressions are derived for the shifts induced in both the frequency and the wavenumber of the radiation pulse. It is shown that temporal variations in the plasma density result in frequency shifts of the radiation. the possibility of up shifting the frequency of the laser pulse using plasma waves in analyzed, and it is found that maximum shifts occur when the phase velocity of the plasma wave is equal to the group velocity of the laser pulse. Keywords Laser plasma interactions Frequency shifts Plasma variations.

Subject Categories:

  • Lasers and Masers
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE