Engineering Mie modes: introducing low refractive index gap in meta-atom

Seokhyeon Hong; Seung Hyeon Hong; Youngsoo Kim; Junyoung Kim; Soon-Hong Kwon

doi:10.1117/12.2607941

5 March 2022 Engineering Mie modes: introducing low refractive index gap in meta-atom

Seokhyeon Hong, Seung Hyeon Hong, Youngsoo Kim, Junyoung Kim, Soon-Hong Kwon

Proceedings Volume PC12010, Photonic and Phononic Properties of Engineered Nanostructures XII; PC120101D (2022) https://doi.org/10.1117/12.2607941
Event: SPIE OPTO, 2022, San Francisco, California, United States

Conference Poster

Abstract

In this presentation, we propose a method to engineer the resonant wavelengths of electric (ED) and magnetic dipoles (MD) with new structure parameters, gap size and position. A low index gap is introduced inside a high index dielectric rectangular block. As the gap size increases and the geometric volume is maintained, the resonant wavelength of MD blue-shifts significantly with keeping the scattering intensity. On the other hand, the resonant wavelength of ED is relatively insensitive to the gap size and position. Our method to introduce low index gap in high index meta-atom can provide new degrees of freedom to engineer the wavelengths of the multipole modes independently and can be utilized to design a metasurface as desired.

Conference Presentation

Citation Download Citation

Seokhyeon Hong, Seung Hyeon Hong, Youngsoo Kim, Junyoung Kim, and Soon-Hong Kwon "Engineering Mie modes: introducing low refractive index gap in meta-atom", Proc. SPIE PC12010, Photonic and Phononic Properties of Engineered Nanostructures XII, PC120101D (5 March 2022); https://doi.org/10.1117/12.2607941

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