EXPOSURE DAMAGE MECHANISMS FOR KC1 WINDOWS IN HIGH POWER LASER SYSTEMS Final Report

摘要

This work describes an experimental study of the 10.6 micrometer and O.6328 micrometer optical properties of single crystal KC1 and europium-doped polycrystals KC1 subjected to 10.6 micrometer irradiation and high temperature. Significant variations in the optical properties are observed over periods of exposure up to 100 hours. Models are proposed to predict the 10.6 micrometer absorptive for long exposure periods. Mechanical creep has been detected in both materials at high temperature.