材料科学
光电子学
纳米结构
表面等离子体子
光子晶体
纳米光子学
表面等离子共振
表面等离子体激元
时域有限差分法
近场和远场
折射率
局域表面等离子体子
等离子纳米粒子
电场
近场扫描光学显微镜
作者
Liyi Hsu,Fadi Issam Baida,Abdoulaye Ndao
出处
期刊:Optics Express
[The Optical Society]
日期:2021-01-18
卷期号:29 (2): 1102-1108
被引量:4
摘要
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.
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