Open AccessLocal field enhancement using a photonic-plasmonic nanostructure
Author(s) -
Li-Yi Hsu,
Fadi Baida,
Abdoulaye Ndao
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.415956
Subject(s) - plasmon , optics , photonics , optoelectronics , nonlinear optics , quantum optics , surface plasmon , physics , coupling (piping) , electromagnetic field , fano resonance , optical physics , resonance (particle physics) , materials science , laser , quantum mechanics , metallurgy , plasma , particle physics
Over the last few years, optical nanoantennas are continuously attracting interest owing to their ability to efficiently confine, localize resonance, and significantly enhanced electromagnetic fields at a subwavelength scale. However, such strong confinement can be further enhanced by using an appropriate combination of optical nanoantennas and Slanted Bound states in the continuum cavities. Here, we propose to synergistically bridge the plasmonic nanoantennas and high optical quality-factor cavities to numerically demonstrate six orders of magnitude local intensity enhancement without critical coupling conditions. The proposed hybrid system paves a new way for applications requiring highly confined fields such as optical trapping, optical sensing, nonlinear optics, quantum optics, etc.