Symmetry-enforced T-matrix retrieval

Jungho Mun; Junsuk Rho

doi:10.1117/12.2567810

19 August 2020 Symmetry-enforced T-matrix retrieval

Jungho Mun, Junsuk Rho

Proceedings Volume 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII; 1146225 (2020) https://doi.org/10.1117/12.2567810
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Conference Poster

Abstract

A simple scheme for T-matrix retrieval with higher efficiency and accuracy by taking particle symmetries into account is presented. T-matrix is calculated using matrix inversion, where the matrix elements are numerically calculated. This proposed scheme additionally generates extra matrix elements using the particle symmetries and reciprocity. This process consumes little effort in terms of computations, while the retrieved T-matrix shows improved accuracy for geometric symmetries and reciprocity. We also study required symmetry operations depending on the symmetries of meta-atoms (point group), and the shapes of their T-matrices. This scheme allows efficient and accurate calculation of T-matrix of meta-atoms for further calculations and group-theoretical analysis.

Citation Download Citation

Jungho Mun and Junsuk Rho "Symmetry-enforced T-matrix retrieval", Proc. SPIE 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII, 1146225 (19 August 2020); https://doi.org/10.1117/12.2567810

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