Laser Damage in Materials

Abstract

The relative contributions of the Kerr, electrostrictive, and thermal effects to the self-focusing thresholds of borosilicate crown glass, fused silica, and dense flint glass have been estimated from an analysis of damage threshold data for linearly polarized and circularly polarized radiation. The measurements were made with a Nd:glass laser operating in the TEMoo mode with a temporal pulse width of 25 ns. Self-focusing data obtained with linearly polarized and circularly polarized radiation are presented for yttrium aluminum garnet (YAG) and five commercial Nd:doped laser glasses. Self-focusing data obtained in dense flint glass with a longer focal length lens are also presented. An electro-optic shutter actuated by a laser triggered spark gap is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1973
Accession Number
AD0757789

Entities

People

  • Albert R. Feldman
  • Deane Horowitz
  • Roy M. Waxler

Organizations

  • National Institute of Standards and Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Crown Glass
  • Electromagnetic Radiation
  • Glass
  • Kerr Effects
  • Laser Beams
  • Laser Damage
  • Laser Materials
  • Materials
  • Measurement
  • Optical Glass
  • Optical Materials
  • Radiation
  • Refractive Index
  • Spark Gaps
  • Waveplates
  • Yttrium Aluminum Garnet

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy