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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 20, Iss. 12 — Dec. 1, 2003
  • pp: 2454–2469

Anisotropy of refractive-index nonlinear change in Cr4+: YAG at cw resonant excitation: modeling

Alexander V. Kir’yanov and Juan Carlos Bermudez G.  »View Author Affiliations


JOSA B, Vol. 20, Issue 12, pp. 2454-2469 (2003)
http://dx.doi.org/10.1364/JOSAB.20.002454


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Abstract

A model is developed for numerically calculating the nonlinear change of the refractive index in a Cr4+:YAG crystal under the powerful resonant (wavelength 1.06 μm) continuous-wave excitation. The anisotropy features of the Cr4+ centers’ population perturbation (bleaching) and the sample inhomogeneous heating (leading to the thermolensing effect) as the basic contributions in the refractive-index nonlinear change are addressed for the first time to our knowledge.

© 2003 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(190.5330) Nonlinear optics : Photorefractive optics
(190.5940) Nonlinear optics : Self-action effects

Citation
Alexander V. Kir’yanov and Juan Carlos Bermudez G., "Anisotropy of refractive-index nonlinear change in Cr4+: YAG at cw resonant excitation: modeling," J. Opt. Soc. Am. B 20, 2454-2469 (2003)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-20-12-2454

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