Modulation of Fano-like resonance in spherical microbubble cavity for high sensitivity pressure sensing

被引：5

作者：

Liu, Wenyao ^{[1
,2
]}

Wang, Rong ^{[1
,2
]}

Li, Wei ^{[1
,2
]}

Zhang, Bo ^{[1
,2
]}

Xing, Enbo ^{[1
,2
]}

Zhou, Yanru ^{[1
]}

Sun, Peng ^{[2
]}

Chen, Jianjun ^{[2
]}

Tang, Jun ^{[1
,2
]}

Liu, Jun ^{[1
,2
]}

机构：

[1] North Univ China, State Key Lab Dynam Measurement Technol, Taiyuan, Peoples R China

[2] North Univ China, Shanxi Prov Key Lab Quantum Sensing & Precis Meas, Taiyuan, Shanxi, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2022年 / 15卷 / 04期

基金：

美国国家科学基金会;

关键词：

pressure sensor; whispering gallery mode; high-Q spherical microbubble; fano-like modulatio; EIT-like lineshape; MODE-INDUCED TRANSPARENCY; WHISPERING-GALLERY MODES; RESONATORS;

D O I：

10.35848/1882-0786/ac5c94

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, we demonstrate a simple scheme to achieve Fano-like and electromagnetically induced transparency (EIT) like resonance by changing the coupling position of a high-Q spherical microbubble cavity with tapered fiber. The evolution processes of the Fano-like and EIT-like spectrums are explored from simulation and experiment, which are in good agreement. And a high sensitivity pressure sensor based on Fano-like resonance is realized. It shows that compared with the slopes of the Lorentz lineshape, Fano-like and EIT-like lineshapes are increased by 2.7 and 20.7 times, respectively. It provides a simple method for ultra-high sensitive sensing.

引用

页数：5

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