All-dielectric nanophotonics: Selective excitation of multipolar resonances and the case of optical anapoles

Brighton Coe; Daneil Eggena; Hiroshi Sugimoto; Mahua Biswas; Minoru Fujii; Uttam Manna

doi:10.1117/12.2570654

20 August 2020 All-dielectric nanophotonics: Selective excitation of multipolar resonances and the case of optical anapoles

Brighton Coe, Daneil Eggena, Hiroshi Sugimoto, Mahua Biswas, Minoru Fujii, Uttam Manna

Author Affiliations +

Proceedings Volume 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII; 114622X (2020) https://doi.org/10.1117/12.2570654
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Conference Poster

Abstract

Resonant excitation and manipulation of high-index dielectric nanostructures (such as Silicon, Germanium) provide great opportunities for engineering novel optical phenomena and applications. Here, we report selective excitation and enhancement of multipolar resonances, and non-radiating optical anapoles in silicon nanospheres using cylindrical vector beams (CVBs). Our approach can be used as a spectroscopy tool to enhance and identify multipolar resonances as well as a straightforward alternate route to excite electrodynamic anapoles at the optical frequencies.

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Citation Download Citation

Brighton Coe, Daneil Eggena, Hiroshi Sugimoto, Mahua Biswas, Minoru Fujii, and Uttam Manna "All-dielectric nanophotonics: Selective excitation of multipolar resonances and the case of optical anapoles", Proc. SPIE 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII, 114622X (20 August 2020); https://doi.org/10.1117/12.2570654

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