Damage Threshold Studies of Glass Laser Materials
Abstract
The work has two aspects: an investigation of elimination of damaging platinum particles from laser glass melted in platinum crucibles, and a study of the causes and prevention of surface damage to laser glass exposed to high intensity laser pulses. Work performed on the former aspect in the specified period has involved a theoretical investigation -- based upon a literature search -- of activity coefficients. The goal of this is determination of partial pressures of oxygen in the melting environment which will prevent formation of damaging platinum particles and at the same time prevent crucible attack. The surface damage study involves a search for causes of damage through high speed holography. Further, chemical treatments of glass surfaces are being explored as a means of increasing the damage threshold. Work on this surface damage phase has primarily involved design and modification of experimental equipment which will be used. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1971
- Accession Number
- AD0718896
Entities
People
- L. Spanoudis
- N. L. Boling
- P. R. Wengert