Photonic nanojets of micro-gold tubes

被引：1
|
作者：
Zhou, Song [1 ]
机构：
[1] Huaiyin Inst Technol, Fac Mech Engn, Huaian 223003, Peoples R China
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2019年 / 58卷 / 05期
关键词：
Electric fields;
D O I：
10.7567/1347-4065/ab1815
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A micro-gold tube illuminated by a TM-polarization plane wave is numerically investigated based on the finite element method. It is found that photonic nanojet (PNJ) can be obtained by a designated micro-gold tube. Basic properties of these PNJs are studied. By comparing these simulation results with PNJs formed by the same diameter dielectric cylinder, I can find that the electric field enhancement can be huger. This phenomenon indicates plasmon resonance can enhance the intensity of PNJs and that can be transmitted to the far field using our designed structure. (C) 2019 The Japan Society of Applied Physics
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页数：4
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