Magnetic field sensor based on PDMS incorporated with ferromagnetic nanocrystals

M. H. Bai; X. J. Wang; Y. Q. Wen; F. Li; W. J. Sun; X. B. Ma; B. Sun

doi:10.1117/12.2606152

1 November 2021 Magnetic field sensor based on PDMS incorporated with ferromagnetic nanocrystals

M. H. Bai, X. J. Wang, Y. Q. Wen, F. Li, W. J. Sun, X. B. Ma, B. Sun

Proceedings Volume 12057, Twelfth International Conference on Information Optics and Photonics; 120572Z (2021) https://doi.org/10.1117/12.2606152
Event: Twelfth International Conference on Information Optics and Photonics, 2021, Xi'an, China

Abstract

In this paper, a three-beam Fabry-Perot interferometric senor for magnetic field and temperature measurement is proposed, which is based on a polymer capped on the cleaved end of a single mode fiber and another SMF is aligned with it. The employed polymer is polydimethylsiloxane (PDMS) incorporated with ferromagnetic nanocrystals (Mn₃O₄). The proposed structure is compact and easy to fabricate, which can improve the sensitivity. The measured sensitivity of magnetic field is -560 pm/mT around 1550 nm. The proposed sensor possesses the following potential applications, such as petroleum survey, electric power industry, biomedicine, aerospace engineering and other fields.

Citation Download Citation

M. H. Bai, X. J. Wang, Y. Q. Wen, F. Li, W. J. Sun, X. B. Ma, and B. Sun "Magnetic field sensor based on PDMS incorporated with ferromagnetic nanocrystals", Proc. SPIE 12057, Twelfth International Conference on Information Optics and Photonics, 120572Z (1 November 2021); https://doi.org/10.1117/12.2606152

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