Interactions between X-ray induced transient defects and pre-existing damage precursors in DKDP crystals

R. A. Negres, C. K. Saw, S. G. Demos

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

Abstract

Large-aperture laser systems, currently designed to achieve high energy densities at the target location (exceeding ∼10 11 J/m 3), will enable studies of the physics of matter and radiation under extreme conditions. As a result, their optical components, such as the frequency conversion crystals (KDP/DKDP), may be exposed to X-rays and other ionizing radiation. This in turn may lead to a change in the damage performance of these materials as they may be affected by radiation-induced effects by either forming new damage initiation centers or interacting with the pre-existing damage initiating defects (so-called damage precursors). We present an experimental study on the laser-induced bulk damage performance at 355-nm of DKDP crystals following X-ray irradiation at room temperature. Results indicate that the damage performance of the material is affected by exposure to X-rays. We attribute this behavior to a change in the physical properties of the precursors which, in turn, affect their individual damage threshold.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages713212
Number of pages1
Volume7132
DOIs
StatePublished - 2008
Externally publishedYes
Event40th Annual Boulder Damage Symposium - Laser-Induced Damage in Optical Materials: 2008 - Boulder, CO, United States
Duration: Sep 22 2008Sep 24 2008

Other

Other40th Annual Boulder Damage Symposium - Laser-Induced Damage in Optical Materials: 2008
CountryUnited States
CityBoulder, CO
Period9/22/089/24/08

Keywords

  • Laser damage
  • Optical materials
  • Point defects
  • Radiation-induced effects
  • X-rays

ASJC Scopus subject areas

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

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  • Cite this

    Negres, R. A., Saw, C. K., & Demos, S. G. (2008). Interactions between X-ray induced transient defects and pre-existing damage precursors in DKDP crystals. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7132, pp. 713212) https://doi.org/10.1117/12.804246