Advanced

New applications of the equation-of-motion method: Optical properties

Hobbs, David LU (1993) In Journal of Non-Crystalline Solids 164-166. p.877-880
Abstract
The equation-of-motion method offers advantages in the calculation of properties of large structural models, of the kind recently developed for a-Si (104 or more atoms). Originally developed for calculating densities of states, it has been shown to be adaptable to a wide variety of other purposes, including the study of localization, conductivity and the Hall effect. Recently we have shown how it may be used to calculate linear optical properties as a function of frequency. Here we present new calculations for a-Si and a-Si:H, using various structural models. The method may be further extended to evaluate nonlinear optical coefficients χ(2)(ω) and χ(3)(ω); we are applying it to the study of χ(3)(ω) for crystalline and amorphous silicon. A... (More)
The equation-of-motion method offers advantages in the calculation of properties of large structural models, of the kind recently developed for a-Si (104 or more atoms). Originally developed for calculating densities of states, it has been shown to be adaptable to a wide variety of other purposes, including the study of localization, conductivity and the Hall effect. Recently we have shown how it may be used to calculate linear optical properties as a function of frequency. Here we present new calculations for a-Si and a-Si:H, using various structural models. The method may be further extended to evaluate nonlinear optical coefficients χ(2)(ω) and χ(3)(ω); we are applying it to the study of χ(3)(ω) for crystalline and amorphous silicon. A conventional approach to this problem, such as calculating eigenstates, would be totally impractical. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
in
Journal of Non-Crystalline Solids
volume
164-166
pages
877 - 880
publisher
Elsevier
external identifiers
  • scopus:0027906747
ISSN
0022-3093
language
English
LU publication?
no
id
f3392de1-9ca2-414a-9e7e-0dcae3698ce6
date added to LUP
2016-09-09 16:34:24
date last changed
2017-07-30 05:14:36
@article{f3392de1-9ca2-414a-9e7e-0dcae3698ce6,
  abstract     = {The equation-of-motion method offers advantages in the calculation of properties of large structural models, of the kind recently developed for a-Si (104 or more atoms). Originally developed for calculating densities of states, it has been shown to be adaptable to a wide variety of other purposes, including the study of localization, conductivity and the Hall effect. Recently we have shown how it may be used to calculate linear optical properties as a function of frequency. Here we present new calculations for a-Si and a-Si:H, using various structural models. The method may be further extended to evaluate nonlinear optical coefficients χ(2)(ω) and χ(3)(ω); we are applying it to the study of χ(3)(ω) for crystalline and amorphous silicon. A conventional approach to this problem, such as calculating eigenstates, would be totally impractical.},
  author       = {Hobbs, David},
  issn         = {0022-3093},
  language     = {eng},
  pages        = {877--880},
  publisher    = {Elsevier},
  series       = {Journal of Non-Crystalline Solids},
  title        = {New applications of the equation-of-motion method: Optical properties},
  volume       = {164-166},
  year         = {1993},
}