Magnetic Field Sensing Based on Whispering Gallery Mode with Nanostructured Magnetic Fluid-Infiltrated Photonic Crystal Fiber

被引：43

作者：

Zhang, Chencheng ^{[1
]}

Pu, Shengli ^{[1
,2
]}

Hao, Zijian ^{[1
]}

Wang, Boyu ^{[1
]}

Yuan, Min ^{[1
]}

Zhang, Yuxiu ^{[1
]}

机构：

[1] Univ Shanghai Sci & Technol, Coll Sci, Shanghai 200093, Peoples R China

[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Shanghai 200093, Peoples R China

来源：

NANOMATERIALS | 2022年 / 12卷 / 05期

基金：

中国国家自然科学基金;

关键词：

whispering gallery mode; microcavity resonator; magnetic field sensor; magnetic fluid; fiber sensor; HOLLOW MICROBUBBLE RESONATOR; HIGH-SENSITIVITY; SENSOR; BIREFRINGENCE;

D O I：

10.3390/nano12050862

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A kind of novel and compact magnetic field sensor has been proposed and investigated experimentally. The proposed sensor consists of a tapered single mode fiber coupled with a nanostructured magnetic fluid-infiltrated photonic crystal fiber, which is easy to be fabricated. The response of magnetic fluid to magnetic field is used to measure the intensity of magnetic field via whispering gallery mode. The magnetic field-dependent shift in resonance wavelength is observed. The maximum magnetic field intensity sensitivity is 53 pm/mT. The sensor sensitivity is inversely proportional to the thickness of the photonic crystal fiber cladding.

引用

页数：10

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