Title :
UV pre-ionized wide-aperture XeCl laser using magnetic pulse compression
Author :
Sajiki, Kazuaki ; Nisizaka, T. ; Nakajima, Shin ; Watanabe, Shuntayo
Author_Institution :
Res. Div., Komatsu Ltd., Kanagawa, Japan
fDate :
12/1/1995 12:00:00 AM
Abstract :
To provide a spatially homogeneous and sufficiently high-voltage discharge, the laser described here used LC inversion and two-stage magnetic pulse compression in the excitation circuit and used UV radiation for pre-ionization. It also employed one commercial thyratron as a high-voltage switch. Evaluation of the dynamic magnetic characteristics of four magnetic materials in a magnetic pulse compression circuit showed that the Fe-based nanocrystalline soft magnetic alloy was the best core material for a compact switch with low core loss. At a 10 Hz repetition rate the maximum output energy obtained in a 80×60 nm discharge cross section and in 70 ns pulses (FWHM) was 6.2 J
Keywords :
excimer lasers; high-voltage techniques; laser accessories; magnetic switching; magneto-optical devices; optical pulse compression; thyratrons; xenon compounds; 10 Hz; 10 Hz repetition rate; 6.2 J; 60 mm; 70 ns; 80 mm; Fe-based nanocrystalline soft magnetic alloy was; LC inversion; UV pre-ionized wide-aperture XeCl laser; UV radiation; XeCl; core material; discharge cross section; dynamic magnetic characteristics; excitation circuit; high-voltage discharge; high-voltage switch; low core loss; magnetic materials; magnetic pulse compression; magnetic pulse compression circuit; pre-ionization.; spatially homogeneous discharge; thyratron; two-stage magnetic pulse compression; Laser excitation; Magnetic circuits; Magnetic cores; Magnetic materials; Optical pulse compression; Optical pulses; Soft magnetic materials; Switches; Switching circuits; Thyratrons;
Journal_Title :
Quantum Electronics, IEEE Journal of
