Pulsed Laser Device Development Program: Mirror Development for Pulsed Lasers.

摘要

Surface diagnostic techniques were reviewed to determine if new or novel methods could help achieve an understanding of the laser mirror pulsed fluence failure problem. Dye penetrants were found ineffective, but ultrasonic baths appear to be useful to remove weakly attached surface regions. Acoustic and thermal wave microscopy appear relevant, but could not be experimentally evaluated in this work. Various coppers and copper alloy samples were procured and examined. A sputtered dispersion-hardened alloy of 1% SiC in copper was found to have superior uniformity in composition and hardness, and produced a polished surface superior to those previously obtained at Avco with OFHC copper. (Author)