Please use this identifier to cite or link to this item: https://doi.org/10.1364/OL.44.006041
Title: Anomalous plasmon hybridization in nanoantennas near interfaces
Authors: Wei, Jingxuan 
Lee, Chengkuo 
Keywords: Science & Technology
Physical Sciences
Optics
FANO RESONANCE
SPECTROSCOPY
Issue Date: 15-Dec-2019
Publisher: OPTICAL SOC AMER
Citation: Wei, Jingxuan, Lee, Chengkuo (2019-12-15). Anomalous plasmon hybridization in nanoantennas near interfaces. OPTICS LETTERS 44 (24) : 6041-6044. ScholarBank@NUS Repository. https://doi.org/10.1364/OL.44.006041
Abstract: © 2019 Optical Society of America. We report on an anomalous plasmon hybridization in side-by-side coupled metallic nanoantennas on top of a silicon waveguide. Contrary to the conventional perception based on Coulomb coupling, the hybridized anti-symmetric mode in our structure possesses a higher resonance frequency than the symmetric mode. This unusual phenomenon reveals a new mechanism of plasmon hybridization, namely, coupling-induced charge redistribution. Our work includes numerical simulation, experimental validation, and theoretical analysis, emphasizing the importance of dielectric interfaces in coupled plasmonic structures, and offers new possibilities for non-Hermitian systems and integrated devices.
Source Title: OPTICS LETTERS
URI: https://scholarbank.nus.edu.sg/handle/10635/168953
ISSN: 0146-9592
1539-4794
DOI: 10.1364/OL.44.006041
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