Damage Threshold Studies of Glass Laser Materials

Abstract

The report discusses surface and particulate damage to laser glass by high power laser pulses. Surface damage is studied through high speed holography. Holograms of damaged samples are taken within a few hundred nanoseconds after damage. The plasmas and acoustic disturbances associated with damage and visible in these holograms are analyzed in detail. The possibility of eliminating damaging particles from laser glass is examined in a theoretical and experimental investigation. Melting of glass under reduced partial pressure of oxygen in platinum is presented as a method for accomplishing this elimination. Also discussed in this report is the design of a high power, high energy, TEM(oo) mode laser to be used in damage studies.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1971
Accession Number
AD0728467

Entities

People

  • L. Spanoudis
  • N. L. Boling
  • P. R. Wengert

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Acoustic Waves
  • Chemistry
  • Desorption
  • Electron Density
  • Electrons
  • Elements
  • Energy
  • Enthalpy
  • Laser Beams
  • Laser Pulses
  • Lasers
  • Materials Science
  • Nesosilicates
  • Partial Pressure
  • Ruby Lasers
  • Thermodynamics
  • Vapor Pressure

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Structural Health Monitoring of Composite Structures.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy