Dynamics of transient absorption in bulk DKDP crystals following laser energy deposition

R. A. Negres, R. N. Raman, J. D. Bude, M. D. Feit, S. G. Demos

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The transient changes in the optical properties of bulk DKDP material arising from its exposure to high temperatures and pressures associated with localized laser energy deposition are investigated. Two methods for initiation of laser-induced breakdown are used, intrinsic, involving relatively large energy deposition brought about by focusing of the laser beam to high intensities, and extrinsic, arising from more localized deposition due to the presence of pre-existing absorbing damage initiating defects. Each method leads to a very different volume of material being affected, which provides for different material thermal relaxation times to help better understand the processes involved.

Original languageEnglish (US)
Pages (from-to)20447-20458
Number of pages12
JournalOptics Express
Volume20
Issue number18
DOIs
StatePublished - Aug 27 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Negres, R. A., Raman, R. N., Bude, J. D., Feit, M. D., & Demos, S. G. (2012). Dynamics of transient absorption in bulk DKDP crystals following laser energy deposition. Optics Express, 20(18), 20447-20458. https://doi.org/10.1364/OE.20.020447