Dynamic Fano Resonance in Thin Fiber Taper Coupled Cylindrical Microcavity

被引：30
作者：
Miao, Yadong [1 ]
Peng, Yunchong [1 ]
Xiang, Yu [1 ]
Li, Mi [1 ]
Lu, Yu [1 ]
Song, Yuejiang [1 ]
机构：
[1] Nanjing Univ, Inst Opt Commun Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2016年 / 8卷 / 06期
基金：
美国国家科学基金会;
关键词：
Microcavity; Fano resonance; radiation mode; whispering gallery mode (WGM); thin fiber taper; INDUCED TRANSPARENCY; CAVITY;
D O I：
10.1109/JPHOT.2016.2630316
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Fano resonance results from interference between a background and a resonant scattering, which produces the asymmetrical lineshape. A cylindrical microcavity naturally possesses localized whispering gallery mode (WGM) and delocalized radiation mode, and a thin fiber taper can excite these two modes simultaneously. The localized WGM can interfere with the weak delocalized background to generate Fano resonance in the thin fiber taper coupled cylindrical microcavity. In addition, the Fano parameter can be adjusted by changing the gap between fiber taper and microcylinder cavity or the coupling diameter of fiber taper. The experimental results agree well with the quantum scattering theory.
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页数：6
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