Work

Dispersion of bound electron nonlinear refraction in solids

Year: 1991

Type: article

Abstract: A two-hand model is used to calculate the scaling and spectrum of the nondegenerate nonlinear absorption. From this, the bound electronic nonlinear refractive index n/sub 2/ is obtained using a Kramers-Kronig transformation. The authors include the effects of two-photon and Raman transitions and the AC Stark shift (virtual band blocking). The theoretical calculation for n/sub 2/ shows excellent agreement with measured values for a five-order-of-magnitude variation in the modulus of n/sub 2/ in semiconductors and wide-gap optical solids. Beam distortion methods were used to measure n/sub 2/ in semiconductors. The observations result in a comprehensive theory that allows a prediction of n/sub 2/ at wavelengths beneath the band edge, given only the bandgap energy and the linear index of refraction. Some consequences for all-optical switching are discussed, and a wavelength criterion for the observation of switching is derived.>

Source: IEEE Journal of Quantum Electronics

DOI: 10.1109/3.89946

Authors: M. Sheik-Bahae, D.C. Hutchings, D.J. Hagan, E.W. Van Stryland

Institution: University of Central Florida

Language: English

Topic: Nonlinear Optical Materials Studies

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2136580096

FWCI: 28.11

Cites: 59

Cited by: 1,071

Related to: 10