New applications of the equation-of-motion method: Optical properties
(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)
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- author
- Hobbs, David LU
- publishing date
- 1993-12
- 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
- 2021-01-03 09:54:43
@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}}, }