U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Excitonic Effects on Optical Second-Harmonic Polarizabilities of Semiconductors

Published

Author(s)

E K. Chang, Zachary H. Levine, Eric L. Shirley

Abstract

We present an ab initio many-body formalism for computing the frequency-dependent second-harmonic polarizability of semiconductor materials that includes both local-field and excitonic effects. We calculate the second-harmonic polarizability for AIP, AIAs, GaP, and GaAs. In each case, excitonic effects increase the value of the second-harmonic polarizability by about 20%. Weobtain results in good agreement with available experiments.
Citation
Physical Review B: Condensed Matter and Materials Physics
Volume
65
Issue
No. 3
Pub Type
Journals

Keywords

ab initio, non-linear optics, second-harmonic generation

Citation

Chang, E. , Levine, Z. and Shirley, E. (2002), Excitonic Effects on Optical Second-Harmonic Polarizabilities of Semiconductors, Physical Review B: Condensed Matter and Materials Physics (Accessed May 30, 2023)

Created December 31, 2001, Updated October 12, 2021