INVESTIGATION OF DAMAGE THRESHOLD OF HARD LASER MIRRORS.

K. Ferencz, K. Fluck, G. Szalai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Investigations were carried out to obtain the technology of production of hard laser mirrors having a high damage threshold. These mirrors are to be built into a resonator of a Nd phosphate glass laser the characteristic parameters of which are: lambda equals 1055 nm, tau equals 15 ns, energy density in the resonator 3 J/cm**2; the reflection coefficient of the mirrors: 99. 5% and the output mirror, 32% less than equivalent to R less than equivalent to 85%. MgF//2 and SiO//2 were used as components with low refractive indices, TiO//2, CeO//2, ZrO//2 as components with high refractive indices. The following parameters were controlled carefully in the evaporating processes: oxygen pressure, evaporating rate, substrate temperature, residual gas pressure (LN//2 cooling). The evaporating processes were made in a BAK76OE equipment, TiO//2, CeO//2, ZrO//2, SiO//2 were evaporated by electron-gun (type EKS110) and MgF//2 was evaporated from an ordinary Mo boat.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Pages261-263
Number of pages3
ISBN (Print)9638241101
Publication statusPublished - Dec 1 1984

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume473
ISSN (Print)0277-786X

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Ferencz, K., Fluck, K., & Szalai, G. (1984). INVESTIGATION OF DAMAGE THRESHOLD OF HARD LASER MIRRORS. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 261-263). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 473). SPIE.