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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

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 June 18, 2024)

Issues

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Created December 31, 2001, Updated October 12, 2021