Abstract

Projects at Lawrence Livermore National Laboratory require optical coatings capable of withstanding fluences of 8-10 J/cm² delivered in single laser pulses with durations of 1-3 ns, or in repeated irradiations, at rates exceeding 100 Hz, by pulses with durations of 10-50 ns. Future fusion lasers will require coatings with higher thresholds. To develop these coatings, we maintain a program that is evaluating sol-gel coatings deposited from solutions, single-layer films made by chemical vapor deposition (CVD) and coatings made by conventional physical vapor deposition (PVD).

© 1987 Optical Society of America