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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 18 — Aug. 27, 2012
  • pp: 20447–20458

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

R. A. Negres, R. N. Raman, J. D. Bude, M. D. Feit, and S. G. Demos  »View Author Affiliations


Optics Express, Vol. 20, Issue 18, pp. 20447-20458 (2012)
http://dx.doi.org/10.1364/OE.20.020447


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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.

© 2012 OSA

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(160.4330) Materials : Nonlinear optical materials
(160.4760) Materials : Optical properties

ToC Category:
Materials

History
Original Manuscript: May 16, 2012
Revised Manuscript: July 11, 2012
Manuscript Accepted: July 30, 2012
Published: August 21, 2012

Citation
R. A. Negres, R. N. Raman, J. D. Bude, M. D. Feit, and S. G. Demos, "Dynamics of transient absorption in bulk DKDP crystals following laser energy deposition," Opt. Express 20, 20447-20458 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-18-20447


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