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Microscopic model of transient Kerr birefringence and self-focusing in bulk dielectrics: dynamic Franz-Keldysh bandgap renormalization
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Paper Abstract

Coherent band spectrum renormalization in dielectrics by a strong anisotropic electric field of intense laser pulses is considered in terms of dynamic Franz-Keldysh effect (DFKE). Comparing to permanent DFKE shifts of center-zone (Γ-point) non-degenerate band extrema, DFKE band spectrum renormalization of degenerate center-zone and zone-edge band extrema occurs as their simultaneous shifts and splitting. Theory-group analysis is invoked to construct the DFKE Hamiltonian for typical dispersion curves of valence and conduction bands in dielectric materials.

Paper Details

Date Published: 7 February 2006
PDF: 6 pages
Proc. SPIE 5991, Laser-Induced Damage in Optical Materials: 2005, 599110 (7 February 2006); doi: 10.1117/12.638606
Show Author Affiliations
Sergey I. Kudryashov, Arkansas State Univ. (United States)

Published in SPIE Proceedings Vol. 5991:
Laser-Induced Damage in Optical Materials: 2005
Gregory J. Exarhos; Arthur H. Guenther; Keith L. Lewis; Detlev Ristau; M.J. Soileau; Christopher J. Stolz, Editor(s)

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