Linear and Second-order Optical Response from First Principles
Abstract
We present a full formalism for the calculation of the linear and second-order optical response for semiconductors and insulators. The expressions for the optical susceptibilities are derived within perturbation theory. As a starting point a brief background of the single and many particle Hamiltonians and operators is provided. As an example we report calculations of the linear and nonlinear optical properties of the mono-layer InP/GaP (110) superlattice. The features in the linear optical spectra are identified to be coming from various band combinations. The main features in the second-order optical spectra are analyzed in terms of resonances of peaks in linear optical spectra. With the help of the strain corrected effective-medium-model the interface selectivity of the second-order optical properties is highlighted.
Cite
@article{arxiv.cond-mat/0305016,
title = {Linear and Second-order Optical Response from First Principles},
author = {S. Sharma and C. Ambrosch-Draxl},
journal= {arXiv preprint arXiv:cond-mat/0305016},
year = {2009}
}
Comments
10 pages 4 figures, conference & physica scripta