MECHANISM OF INCLUSION DAMAGE IN LASER GLASS

RW HOPPER RW, Donald R Uhlmann

Research output: Contribution to journalArticle

229 Citations (Scopus)

Abstract

The use of glass lasers in high-power applications is frequently limited by breakdown of the host glass at certain discrete points. This type of breakdown, known as inclusion damage, has generally been associated with the presence in the glass of second-phase particles. The present paper is concerned with-elucidating the origin of inclusion damage; specifying the effects of particle size; shape, and absorptivity upon the likelihood of damage; describing observations of damage on different scales in a Nd-doped barium crown glass; and considering the possible effects of phase separation in the glass on inclusionbreakdown. It is suggested that inclusion damage is associated with particles, most likely metallic, absorbing energy from the laser beam and heating to temperatures well above the range of vaporization under standard conditions. This heating of particles relative to the surrounding glass produces stresses in the glass which can exceed its theoretical strength and results in failure.

Original languageEnglish (US)
Pages (from-to)4023-4037
Number of pages15
JournalJournal of Applied Physics
Volume41
Issue number10
StatePublished - Sep 1970
Externally publishedYes

Fingerprint

glass lasers
inclusions
damage
glass
breakdown
laser heating
barium
absorptivity
laser beams
heating

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

MECHANISM OF INCLUSION DAMAGE IN LASER GLASS. / HOPPER RW, RW; Uhlmann, Donald R.

In: Journal of Applied Physics, Vol. 41, No. 10, 09.1970, p. 4023-4037.

Research output: Contribution to journalArticle

HOPPER RW, RW & Uhlmann, DR 1970, 'MECHANISM OF INCLUSION DAMAGE IN LASER GLASS', Journal of Applied Physics, vol. 41, no. 10, pp. 4023-4037.
HOPPER RW, RW ; Uhlmann, Donald R. / MECHANISM OF INCLUSION DAMAGE IN LASER GLASS. In: Journal of Applied Physics. 1970 ; Vol. 41, No. 10. pp. 4023-4037.
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