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cda (version 1.5.1)

cda-package: cda

Description

Coupled dipole approximation in electromagnetic scattering

Arguments

Details

Solves the electromagnetic problem of coupled-dipoles (scattering and absorption by a cluster of subwavelength particles in arbitrary 3D configuration) by direct inversion of the interaction matrix. Functions are provided for linear polarisation with varying angle of incidence, as well as circular polarisation with angular averaging (optical activity). Retardation is included in the interaction.

References

Draine BT. The discrete-dipole approximation and its application to interstellar graphite grains. Astrophysical Journal. 1988.

Schatz GC, Duyne RP. Discrete dipole approximation for calculating extinction and Raman intensities for small particles with arbitrary shapes. Journal of Chemical Physics. 1995.

Gunnarsson L, Zou S, Schatz GC, et al. Confined plasmons in nanofabricated single silver particle pairs: Experimental observations of strong interparticle interactions. Journal of Physical Chemistry B. 2005.

## Any one of the following references should be used to cite and acknowledge the use of this package.

Circular dichroism:

B. Auguie, J.L. Alonso-Gomez, A. Guerrero-Martinez, L.M. Liz-Marzan. Fingers crossed: circular dichroism with a dimer of plasmonic nanorods. J. Phys. Chem. Lett. 2, (2011)

Linear extinction:

B. Auguie, W.L. Barnes. Diffractive coupling in gold nanoparticle arrays and the effect of disorder. Optics Letters (2009)

Array factor (infinite case):

B. Auguie, W.L. Barnes. Collective resonances in gold nanoparticle arrays. Physical Review Letters (2008)