Independently unable double Fano resonances based on waveguide-coupled cavities

被引：13

作者：

Zha, Ting ^{[1
,2
]}

Xia, Huifu ^{[1
,2
]}

Li, Yingtao ^{[1
,2
]}

Yang, Jianhong ^{[1
,2
]}

Jia, Hao ^{[1
,2
]}

Ren, Guanghui ^{[3
]}

Mitchell, Arnan ^{[3
]}

Tian, Yonghui ^{[1
,2
]}

机构：

[1] Lanzhou Univ, Sch Phys Sci & Technol, Inst Microelect, Lanzhou 730000, Gansu, Peoples R China

[2] Lanzhou Univ, Sch Phys Sci & Technol, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Gansu, Peoples R China

[3] RMIT Univ, Sch Engn, Melbourne, Vic 3001, Australia

来源：

OPTICS LETTERS | 2019年 / 44卷 / 12期

基金：

中国国家自然科学基金;

关键词：

PLASMONIC NANOCAVITIES; MICRORING RESONATOR;

D O I：

10.1364/OL.44.003154

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter, we first demonstrate periodically and independently tunable double Fano resonances (DFRs) using waveguide-coupled cavities consisting of two silicon microring resonators (MRRs) and a feedback-coupled waveguide. The proposed device is fabricated on the silicon-on-insulator substrate using the standard complementary metal-oxidesemiconductor fabrication process. The DFR can be tuned independently by changing the resonant wavelengths of two MRRs using the thermo-optic effect. The highest extinction ratio of the Fano resonances is measured to be as high as 29.20 dB, which enables this device to be a promising candidate for high-performance multi-wavelength optical switches and high-sensitivity biochemical sensors. (C) 2019 Optical Society of America

引用

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页码：3154 / 3157

页数：4

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