Frequency Shift Induced in Laser Pulses by Plasma Density Variations
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 25, 1989
- Accession Number
- ADA214195
Entities
People
- Antonio Ting
- Eric H. Esarey
- Phillip A. Sprangle
Organizations
- United States Naval Research Laboratory