Improved Operation Of A Coaxial Excited High Energy Density KrF Laser

A high energy density KrF laser pumped by a coaxial electron beam will be des5ribed. With a pumping pulse length of 250 ns (FWHM) and a current density of about 100 A/cm2 a maximum output of 7.13J was obtained. The optical pulse width was 160 ns (FWHM) and the active volume 157 cm which means a specific energy of 46 J/L and an output power of 44 MW.