Effects of Ion Beam Polishing on Alkali Halide Laser Window Materials,
Abstract
Samples of single crystal KCl, KCl-KBr, and polycrystalline pressure-induced recrystallized KCl were polished using an argon ion beam. The specimens were rotated at a constant rate during bombardment. The angle-of-incidence of the ion beam, the ion current, and the time of sample exposure were varied. After polishing the surfaces of the samples were examined by x-ray topography, scanning electron microscopy, transmission electron microscopy, and Nomarski techniques and the absorption coefficient of the materials was measured. The effects of different polishing rates and angles-of-incidence on surface quality and absorption characteristics of the selected alkali halide laser window materials are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 07, 1975
- Accession Number
- ADA010459
Entities
People
- C. V. Collins
- H. G. Lipson
- J. A. Bruce
- J. J. Comer
Organizations
- Air Force Cambridge Research Laboratories