Short Wavelength Laser/Materials Interactions.

摘要

The overall objective of the program is to understand the nature of laser interactions with materials, with special emphasis on the phenomenology and effects associated with short wavelength laser interactions with spacecraft materials. HARC/Rice personnel have completed the following projects: 1) development of new diagnostic instrumentation and testing methods for evaluation of laser effects and high temperature performance, 2) fundamental studies of laser/materials interactions, 3) determination of short wavelength laser/materials interaction phenomena and effects, and 4) materials evaluation. The program has led to major advances in science-based understanding of materials performance under extreme conditions for two applications: 1) enhancement of spacecraft survivability, and 2) development of high and ultrahigh temperature oxidation-resistant materials. Keywords: Laser effects; Laser/materials interactions; Optical properties;' Pyrometry; Plume spectroscopy; Laser hardened materials; Spacecraft survivability; Ultrahigh temperature; Oxidation resistant materials; Ablation. (JHD)