Fano resonances in metallic grating coupled whispering gallery mode resonator

被引：22
|
作者：
Zhou, Yanyan [1 ,2 ]
Zhu, Di [1 ,2 ]
Yu, Xia [2 ]
Ding, Wei [3 ]
Luan, Feng [1 ,4 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[2] Singapore Inst Mfg Technol, Precis Measurements Grp, Singapore 638075, Singapore
[3] Chinese Acad Sci, Inst Phys, Key Lab Opt Phys, Beijing 100190, Peoples R China
[4] OPTIMUS Nanyang Technol Univ, Singapore 639798, Singapore
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 15期
关键词：
D O I：
10.1063/1.4823531
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We experimentally demonstrate robust coupling of a metallic grating to the whispering gallery mode (WGM) of a microsphere resonator. The metallic grating coupled resonator forms a hybrid system that generates Fano resonances. Through theoretical modeling and experimental demonstration, we analyze this vertically coupled Fano-WGM structure. It is found that the Fano resonances originate from the interaction between the high-Q WGM and direct reflection of the grating. The Fano resonance shape is found to depend on the polarization state of the incident wave. (C) 2013 AIP Publishing LLC.
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页数：4
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