Title

Dispersion of nonlinear refraction and two-photon absorption using a white-light continuum Z-scan

Authors

Authors

M. Balu; J. Hales; D. J. Hagan;E. W. Van Stryland

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

SINGLE-BEAM; GENERATION; Optics

Abstract

We use a white-light continuum (WLC) Z-scan technique to measure the degenerate two-photon absorption spectrum and associated dispersion of the nonlinear refraction in ZnSe. The spectral components of the WLC source are separated by using a narrow band variable filter to minimize nondegenerate nonlinearities. We observe a change in sign of the ultrafast nonlinear refractive index around 0.7 of the bandgap energy as predicted by theory. (C) 2005 Optical Society of America.

Journal Title

Optics Express

Volume

13

Issue/Number

10

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

3594

Last Page

3599

WOS Identifier

WOS:000229140900002

ISSN

1094-4087

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