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Decoupling approximation for the nonlinear-optical response of composite media
Abstract
A nonlinear decoupling approximation (NDA) is described for calculating the nonlinear-optical response of composite materials. The NDA is used in conjunction with the effective-medium approximation for the linear response to calculate the effective third-order susceptibility, χe, of model metal–insulator and semiconductor–insulator composites as a function of frequency and composition. It is found that the ratio χe can be strongly enhanced relative to χ1, the corresponding third-order nonlinear susceptibility of a pure constituent in bulk. The enhancement is found to be sensitive to composite topology as well as to composition. The nonlinear susceptibility of randomly oriented nonlinear ellipsoidal particles in a linear host is calculated in the dilute limit. The susceptibilities of the model composites are also shown to be strongly influenced by particle shape.
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Cites
Bruggeman, D. A. G. (1935) · Annalen der Physik · doi:10.1002/andp.19354160705 · Cited by 8,645
Cited by
Maxwell Garnett theory for mixtures of anisotropic inclusions: Application to conducting polymers
Levy, O., & Stroud, D. (1997) · Physical Review B · doi:10.1103/physrevb.56.8035 · Cited by 366
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Metadata
- Authors
- Stroud, D., & Wood, V. E.
- Venue
- Journal of the Optical Society of America B
- Publisher
- Optica Publishing Group
- Published
- 1989-04-01
- Volume
- 6
- Issue
- 4
- Pages
- 778
- ISSN
- 0740-3224 (ISSN-L)
- 1520-8540
- OpenAlex
- W2141851211
- Cited by
- 166
- References
- 1
- FWCI
- 3.96
- Type
- journal article
- Language
- en
- Open access
- closed
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- Stroud, D., & Wood, V. E. (1989). Decoupling approximation for the nonlinear-optical response of composite media. Journal of the Optical Society of America B. https://doi.org/10.1364/josab.6.000778
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
