Modified transmission spectrum induced by two-mode interference in a single silica microsphere

被引：61

作者：

Dong, Chun-Hua ^{[1
]}

Zou, Chang-Ling ^{[1
]}

Xiao, Yun-Feng ^{[2
]}

Cui, Jin-Ming ^{[1
]}

Han, Zheng-Fu ^{[1
]}

Guo, Guang-Can ^{[1
]}

机构：

[1] Univ Sci & Technol China, Key Lab Quantum Informat, Hefei 230026, Peoples R China

[2] Peking Univ, Dept Phys, State Key Lab Artificial Microstruct & Mesoscop P, Beijing 100871, Peoples R China

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2009年 / 42卷 / 21期

基金：

美国国家科学基金会;

关键词：

WHISPERING-GALLERY; WAVE-GUIDE; MICROCAVITY; BISTABILITY; RESONANCE; ANALOG;

D O I：

10.1088/0953-4075/42/21/215401

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We theoretically and experimentally study the resonant transmission spectrum of light in a fibre taper coupled with a single silica microsphere cavity system, where two whispering-gallery modes (WGMs) are simultaneously excited. By changing the taper position (correspondingly, tuning the resonant frequencies of the two WGMs and modulating their coupling conditions with the fibre taper), a sharp electromagnetically-induced-transparency-like window can be observed in the transmission spectrum. This line shape origins from the taper-mediated interference between two co-existing WGMs in a single microsphere. This measurement result agrees well with the theoretical analysis.

引用

页数：4

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