High-efficiency fused-silica transmission gratings

Opt Lett. 1997 Feb 1;22(3):142-4. doi: 10.1364/ol.22.000142.

Abstract

We describe the design, fabrication, and performance of high-efficiency transmission gratings fabricated in bulk fused silica for use in high-power ultraviolet laser systems. The gratings exhibit a diffraction efficiency of 94% in order m=-1 and a damage threshold greater than 13>J/cm( 2) for 3-ns pulses at 351 nm. Model calculations and experimental measurements are in good agreement.