Extended multipole framework for describing isolated and coupled meta-atoms

Jungho Mun; Junsuk Rho; Jaehyuck Jang; Sunae So

doi:10.1117/12.2567470

20 August 2020 Extended multipole framework for describing isolated and coupled meta-atoms

Jungho Mun, Junsuk Rho, Jaehyuck Jang, Sunae So

Proceedings Volume 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII; 114621X (2020) https://doi.org/10.1117/12.2567470
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

Higher-order dynamic polarizability tensors are formulated using the irreducible Cartesian basis, which makes polarizability tensors and Green’s tensors to be symmetric. Basis transformation matrices are presented, which systematically transform Cartesian multipoles and local field quantities to spherical multipoles. These newly presented expressions allow systematic retrieval of higher-order dynamic polarizability tensors and formulation of coupled multipole method up to magnetic octupole. This multipole framework is (semi-)analytic and computationally efficient, allowing description of electromagnetically coupled meta-atoms. Meta-atoms in periodic or random lattices and those dispersed in three-dimensional random- and large-scale systems may be analyzed using this method.

Conference Presentation

Citation Download Citation

Jungho Mun, Junsuk Rho, Jaehyuck Jang, and Sunae So "Extended multipole framework for describing isolated and coupled meta-atoms", Proc. SPIE 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII, 114621X (20 August 2020); https://doi.org/10.1117/12.2567470

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