Plasmonic Bound States in the Continuum in Compact Nanostructures
Source abstract
Abstract
Abstract Optical bound states in the continuum (BICs) have become a unique way to produce the extreme localization and enhancement of light waves, however, it remains challenging to realize them in single‐particle systems. This work shows the existence of optical BICs in a compact corrugated metallic cylinder, and quasi‐BICs are observed in multiple channels when adjacent grooves have different depths. It is revealed that such BICs are purely plasmonic, resulting from the destructive interference of two localized surface plasmon modes in the nanostructures. Benefiting from the surface plasmon effects, the findings extend optical BICs and the associated physics to subwavelength optics, providing a route to break the diffraction limit and boost light–matter interactions.
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Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Orbital Angular Momentum in Optics · Gold and Silver Nanoparticles Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Physical Science and Technology and Jiangsu Key Laboratory of Thin Films Soochow University Suzhou 215006 China
College of Physics Nanjing University of Aeronautics and Astronautics and Key Laboratory of Aerospace Information Materials and Physics (NUAA) MIIT Nanjing 211106 China
School of Physics Xiamen University Xiamen 361005 China
School of Photoelectric Science and Energy Engineering Suzhou City University Suzhou 215104 China
Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Shizi Street Suzhou 215006 China
Funding
National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · Natural Science Foundation of Jiangsu Province · China Postdoctoral Science Foundation
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