Electromagnetic multipole theory for optical nanomaterials
By P. Grahn, A. Shevchenko, M. Kaivola. 2012
372 citations recorded by the source corpus.
Optical properties of natural or designed materials are determined by the electromagnetic multipole moments that light can excite in the constituent particles. In this paper, we present an approach to calculating the multipole excitations in arbitrary arrays of nanoscatterers in a dielectric host medium. We introduce a simple and illustrative multipole decomposition of the electric currents excited in the scatterers and connect this decomposition to the classical multipole expansion of the scattered field. In particular, we find that completely different multipoles can produce identical scattered fields. The presented multipole theory can be used as a basis for the design and characterization of optical nanomaterials.
Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/c4c886bc369aa072a43d43c4afe14f62799c8a74
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In Biomedical Engineering
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Multipolar origin of bound states in the continuum (2019, methodology): “Namely, the multipole expansion has been widely used to determine the polarization and directivity patterns of the scattered field of single particles and their clusters both plasmonic and dielectric [34, 36] for a variety of applications such as polarization control device [35], dielectric nanoante”
- Resonant dielectric nanostructures: a low-loss platform for functional nanophotonics (2016, background): “Multipolar contributions to the optical response of a specific nanoparticle system can be identified and quantified by a multipole expansion of the scattered field [20, 49, 50].”