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Metasurfaces with Maximum Chirality Empowered by Bound States in the Continuum
Open accessAbstract
We demonstrate that rotationally symmetric chiral metasurfaces can support sharp resonances with the maximum optical chirality determined by precise shaping of bound states in the continuum (BICs). Being uncoupled from one circular polarization of light and resonantly coupled to its counterpart, a metasurface hosting the chiral BIC resonance exhibits a narrow peak in the circular dichroism spectrum with the quality factor limited by weak dissipation losses. We propose a realization of such chiral BIC metasurfaces based on pairs of dielectric bars and validate the concept of maximum chirality by numerical simulations.
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Cited by
Plasmonic topological metasurface by encircling an exceptional point
Song, Q., Odeh, M., Zúñiga-Pérez, J., Kanté, B., & Genevet, P. (2021) · Science · doi:10.1126/science.abj3179 · Cited by 341
Qiu, C.-W., Zhang, T., Hu, G., & Kivshar, Y. (2021) · Nano Letters · doi:10.1021/acs.nanolett.1c00828 · Cited by 243
Self-citationVectorial metasurface holography
Song, Q., Liu, X., Qiu, C.-W., & Genevet, P. (2022) · Applied Physics Reviews · doi:10.1063/5.0078610 · Cited by 139
Metadata
- Authors
- Gorkunov, M. V., Antonov, A. A., & Kivshar, Y. S.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2020-08-27
- Volume
- 125
- Issue
- 9
- Pages
- 093903-093903
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W3037267280
- Cited by
- 538
- References
- 0
- FWCI
- 31.45
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Gorkunov, M. V., Antonov, A. A., & Kivshar, Y. S. (2020). Metasurfaces with Maximum Chirality Empowered by Bound States in the Continuum. Physical Review Letters. https://doi.org/10.1103/physrevlett.125.093903
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