Access Restriction

Author Dreher, M. ♦ Kalmykov, S. Yu. ♦ Meyer-Ter-Vehn, J.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Abstract Numerical simulations and theoretical estimations recover typical features of MPQ superradiant amplification (SRA) experiments. A wide set of experiments on SRA amplification in the Compton regime [1] has been performed at MPQ in recent years. This regime is attained when the bounce frequency of electrons in the potential well of counterpropagating beams becomes larger than the electron plasma frequency, ωB 2 =4aseedapumpω0 2>ωpe 2, and plasma electrons serve as independent emitters. The most effective amplification could be expected with the initial seed duration close to the half of the bounce period: τseed∼π/ωB∼(IpumpIseed)-1/4 ω0-1. In the recent experiments, the initial seed duration was always larger than π/ωB. Autocorrelator measurements discover significant distortion of the temporal pulse profile, that is, break-up of the initially smooth seed pulse into several beamlets without visible compression of the wave train as a whole.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study