Work

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

Year: 2005

Type: article

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.

Source: Optics Express

DOI: 10.1364/opex.13.003594

Authors: Mihaela Balu, Joel Hales, David J. Hagan, Eric W. Van Stryland

Institutions: University of Central Florida, Georgia Institute of Technology

Language: English

Topic: Nonlinear Optical Materials Studies

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: National Science Foundation, Army Research Laboratory