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Beyond Clausius-Mossotti - Wave propagation on a polarizable point lattice and the discrete dipole approximation

Draine, B. T., Goodman, Jeremy·1993·The Astrophysical Journal

Abstract

We derive the dispersion relation for electromagnetic waves propagating on a lattice of polarizable points. From this dispersion relation we obtain a prescription for choosing dipole polarizabilities so that an infinite lattice with finite lattice spacing will mimic a continuum with dielectric constant. The discrete dipole approximation is used to calculate scattering and absorption by a finite target by replacing the target with an array of point dipoles. We compare different prescriptions for determining the dipole polarizabilities. We show that the most accurate results are obtained when the lattice dispersion relation is used to set the polarizabilities.

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Metadata

Authors
Draine, B. T., & Goodman, J.
Venue
The Astrophysical Journal
Published
1993-03
Volume
405
Pages
685
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2036035637
Cited by
441
References
0
FWCI
2.45
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Beyond Clausius-Mossotti - Wave propagation on a polarizable point lattice and the discrete dipole approximation. https://app.cochat.ai/papers/10.1086/172396
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Draine, B. T., & Goodman, J. (1993). Beyond Clausius-Mossotti - Wave propagation on a polarizable point lattice and the discrete dipole approximation. The Astrophysical Journal. https://doi.org/10.1086/172396

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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.