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

Zhang, Chencheng; Pu, Shengli; Hao, Zijian; Wang, Boyu; Yuan, Min; Zhang, Yuxiu

doi:10.3390/nano12050862

Cited by 50 publications

(7 citation statements)

References 39 publications

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“…The blue-shift sensitivities are 0.322, 1.12, and 0.564 nm∕mT. Other reported resonator sensors, including photonic crystal fibers (53 pm∕mT), 14 microring resonators (−16.80 pm∕mT), 31 microbubble resonators (−15.01 pm∕mT), 13 cylindrical resonators (−61.86 pm∕mT), 12 and microbottle resonators (304.80 pm∕mT). 15 It can be seen that most of the magnetic sensitivities are <1 nm∕mT.…”

Section: Resultsmentioning

confidence: 92%

“…Recently, magnetic fluids have been combined with photonic crystal fibers or capillary microbubbles with an applied magnetic field perpendicular or parallel to the capillary axis to achieve bidirectional magnetic field detection. [12][13][14][15][16] The method of transmission spectrum shift affects the detection limit. 10 Optical cavity coupled with magnetic material is other type.…”

Section: Introductionmentioning

confidence: 99%

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High sensitivity magnetic field sensing via a sandwich-type polydimethylsiloxane resonator

Rong

Xing

et al. 2023

Opt. Eng.

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.High sensitivity magnetic sensing is proposed using a sandwich structure with polydimethylsiloxane (PDMS) flexible resonator as the core. The directional sensing feature is provided by the sandwich structure’s preset magnetic field. The small Young’s modulus of flexible material corresponds to larger variation, resulting in a highly sensitive magnetic response. In the unshielded environment, the experimental results demonstrate redshift sensitivity of 1.08 nm / mT and blueshift sensitivity of 1.12 nm / mT, which are attributed to a slight variation in the PDMS’s Young’s modulus. The directivity curve’s concave point has a depth of 34.6 dB. The minimum detectable magnetic field of 0.96 nT · Hz − 1/2 is achieved at 1.4 kHz.

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Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

High sensitivity magnetic field sensing via a sandwich-type polydimethylsiloxane resonator

Rong

Xing

et al. 2023

Opt. Eng.

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“…PCF, filled with functional materials, will exhibit different light guiding properties. Optical fiber sensing, [26] light modulators, [25,27] etc. can be designed according to the principles.…”

Section: Introductionmentioning

confidence: 99%

Multi-band polarization switch based on magnetic fluid filled dual-core photonic crystal fiber

Zhang

Zhang²,

Yu³

et al. 2023

Chinese Phys. B

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The research of high-performance polarization controllers is of great significance for expanding the application field of polarization optics. Here, a polarization switch is demonstrated by using a dual-core photonic crystal fiber (DCPCF) with four symmetrical air holes, placed above and below each core, filled with magnetic fluid (MF). The switch, which utilizes a magnetic field to change the coupling length ratio of the x and y polarization modes, enables dynamic tuning of the polarization state and extinction ratio. Numerical results show that when the working length is 36.638mm, the magneto-optical polarization switch can operate in four communication bands, i.e., 1509nm to 1520nm, 1544nm to 1556nm, 1578nm to 1591nm, and 1611nm to 1624nm. Moreover, the extinction ratio (ER) is greater than 20dB in the fiber length range of 38.5 mm to 38.7 mm, indicating that the device has a good fault tolerance for the interception of the fiber length.

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“…It has the magnetic properties of solid magnetic materials and unique optical properties. Due to its tunable refractive index (RI) characteristics, optical anisotropy and good compatibility with optical fiber, MF has been widely used in optical fiber sensors [ 1 , 2 , 3 , 4 , 5 ]. Recently, many fiber sensors combined with MF have been proposed for magnetic field, temperature and curvature measurement.…”

Section: Introductionmentioning

confidence: 99%

Fiber-Optic Vector-Magnetic-Field Sensor Based on Gold-Clad Bent Multimode Fiber and Magnetic Fluid Materials

Liu

Hao

et al. 2022

Materials

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A kind of bent multimode fiber (MMF) vector magnetic sensor based on surface plasmon resonance (SPR) was proposed. By plating gold film on the curved part of the bent multimode fiber, the surface plasmon mode (SPM) was excited via a whispering gallery mode (WGM). Fabricating the structure only required bending the fiber and plating it with gold, which perfectly ensured the integrity of the fiber and made it more robust compared with other structures. The sensor used magnetic fluid (MF) as the magnetically sensitive material. Through monitoring the shift of the surface plasmon resonance dip, the as-fabricated sensor not only had a high magnetic field intensity sensitivity of 9749 pm/mT but could also measure the direction of a magnetic field with a high sensitivity of 546.5 pm/°. The additional advantages of the proposed sensor lay in its easy fabrication and good integrity, which make it attractive in the field of vector-magnetic-field sensing.

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

Cited by 50 publications

References 39 publications

High sensitivity magnetic field sensing via a sandwich-type polydimethylsiloxane resonator

High sensitivity magnetic field sensing via a sandwich-type polydimethylsiloxane resonator

Multi-band polarization switch based on magnetic fluid filled dual-core photonic crystal fiber

Fiber-Optic Vector-Magnetic-Field Sensor Based on Gold-Clad Bent Multimode Fiber and Magnetic Fluid Materials

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