The inclusion problem in laser glass

RW HOPPER RW, C LEE C, Donald R Uhlmann

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

The problem of inclusion damage in laser glass is considered with attention directed to an improved treatment of the stress around a hot inclusion particle. The existence of a layer of molten glass surrounding such particles is suggested; and the new analysis indicates a maximum tensile stress in the nearby cooler glass, rather than at the solid- liquid glass boundary. The magnitude of this tensile stress can exceed the expected strength of the glass for a range of particle sizes under high power laser operation, and failure is then expected to occur. Thereakdown condition is shown to depend upon the flux level and pulse time of the laser beam, as well as the size and shape of the inclusion particles and various material properties of the inclusion and glass. Under most conditions of laser operation, nonmetallic inclusions - even those containing large concentrations of highly absorbing ions - are expected to be safe; and under all conditions they should be appreciable less dangerous than similar metal particles.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
Pages55-66
Number of pages12
StatePublished - 1970
Externally publishedYes
EventNBS Spec Publ 341 Proc Symp on Damage in Laser Mater - Boulder, Colo
Duration: Jun 24 1970Jun 25 1970

Other

OtherNBS Spec Publ 341 Proc Symp on Damage in Laser Mater
CityBoulder, Colo
Period6/24/706/25/70

Fingerprint

Glass lasers
Glass
Tensile stress
High power lasers
Laser beams
Molten materials
Laser pulses
Materials properties
Particle size
Fluxes
Lasers
Ions
Liquids
Metals

ASJC Scopus subject areas

  • Engineering(all)

Cite this

HOPPER RW, RW., LEE C, C., & Uhlmann, D. R. (1970). The inclusion problem in laser glass. In Unknown Host Publication Title (pp. 55-66)

The inclusion problem in laser glass. / HOPPER RW, RW; LEE C, C; Uhlmann, Donald R.

Unknown Host Publication Title. 1970. p. 55-66.

Research output: Chapter in Book/Report/Conference proceedingChapter

HOPPER RW, RW, LEE C, C & Uhlmann, DR 1970, The inclusion problem in laser glass. in Unknown Host Publication Title. pp. 55-66, NBS Spec Publ 341 Proc Symp on Damage in Laser Mater, Boulder, Colo, 6/24/70.
HOPPER RW RW, LEE C C, Uhlmann DR. The inclusion problem in laser glass. In Unknown Host Publication Title. 1970. p. 55-66
HOPPER RW, RW ; LEE C, C ; Uhlmann, Donald R. / The inclusion problem in laser glass. Unknown Host Publication Title. 1970. pp. 55-66
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