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Proceedings Paper

Kramers-Kronig relation between n2 and two-photon absorption
Author(s): Mansoor Sheik-Bahae; David J. Hagan; Ali A. Said; James Young; Tai-Huei Wei; Eric W. Van Stryland
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Paper Abstract

Nonlinear refractive index and two-photon absorption measurements on semiconductors show that the bound electronic nonlinearity can be calculated from two-photon absorption dispersion via a simple Kramers- Kronig analysis. This analysis shows n2 changing from positive to negative as the photon energy approaches the band-gap energy, consistent with observations. Additionally, this simple calculation, which assumes two parabolic bands, gives good agreement with measured values of n2 in wide-gap dielectrics that are 2 to 3 orders of magnitude smaller than in semiconductors.

Paper Details

Date Published: 1 October 1990
PDF: 6 pages
Proc. SPIE 1307, Electro-Optical Materials for Switches, Coatings, Sensor Optics, and Detectors, (1 October 1990); doi: 10.1117/12.21687
Show Author Affiliations
Mansoor Sheik-Bahae, CREOL/Univ. of Central Florida (United States)
David J. Hagan, CREOL/Univ. of Central Florida (United States)
Ali A. Said, CREOL/Univ. of Central Florida (United States)
James Young, CREOL/Univ. of Central Florida (United States)
Tai-Huei Wei, CREOL/Univ. of Central Florida (Taiwan)
Eric W. Van Stryland, CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 1307:
Electro-Optical Materials for Switches, Coatings, Sensor Optics, and Detectors
Rudolf Hartmann; M. J. Soileau; Vijay K. Varadan, Editor(s)

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