Abstract

A high-sensitivity vector magnetic field is proposed and demonstrated. The sensor consists of a side-polished-fiber (SPF)-based surface plasmon resonance (SPR) structure integrated with ferrofluid. Because of the high refractive index sensitivity of the SPR scheme and the outstanding magneto optical properties of ferrofluid, the sensor shows a high sensitivity (up to 598.7 pm/Oe) to magnetic field intensity. Moreover, owing to the non-circular-symmetric geometry of the SPF and non-uniform distribution of the ferrofluid around the SPF, the sensor exhibits a sensitivity of 5.63nm/deg to the orientation of the magnetic field. The proposed vector magnetic field sensor, integrating over magnetic, plasmonic, and fiber-optic schemes, is highly sensitive to both the intensity and orientation of the magnetic field simultaneously, and holds potential in applications in many fields, such as medicine, industry, and the military.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Half-side gold-coated hetero-core fiber for highly sensitive measurement of a vector magnetic field

Qianyu Lin, Yuchan Hu, Feng Yan, Shiqi Hu, Yu Chen, Guishi Liu, Lei Chen, Yi Xiao, Yaofei Chen, Yunhan Luo, and Zhe Chen
Opt. Lett. 45(17) 4746-4749 (2020)

All-fiber-optic vector magnetic field sensor based on side-polished fiber and magnetic fluid

Yongxi Li, Shengli Pu, Yongliang Zhao, Rui Zhang, Zixuan Jia, Jilei Yao, Zijian Hao, Zhongxue Han, Dihui Li, and Xinjie Li
Opt. Express 27(24) 35182-35188 (2019)

High-sensitivity and low-temperature magnetic field sensor based on tapered two-mode fiber interference

Bing Sun, Fang Fang, Zuxing Zhang, Jing Xu, and Lin Zhang
Opt. Lett. 43(6) 1311-1314 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription