Vector magnetic field sensor based on U-bent single-mode fiber and magnetic fluid

Li, Yongxi; Pu, Shengli; Hao, Zijian; Yan, Shaokang; Zhang, Yuxiu; Lahoubi, Mahieddine

doi:10.1364/oe.416187

Cited by 69 publications

(15 citation statements)

References 42 publications

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“…Li et al [ 109 ] proposed and investigated a novel magnetic field sensor that consists of a U-bent single-mode fiber fixed in a magnetic-fluid-filled vessel. Neither mechanical modification nor additional fiber grating is needed during the sensor fabrication.…”

Section: Application Of Magnetic Ferrofluids In Optics and Nanophotonicsmentioning

confidence: 99%

Magnetite Nanoparticles: Synthesis and Applications in Optics and Nanophotonics

et al. 2022

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Magnetite nanoparticles with different surface coverages are of great interest for many applications due to their intrinsic magnetic properties, nanometer size, and definite surface morphology. Magnetite nanoparticles are widely used for different medical-biological applications while their usage in optics is not as widespread. In recent years, nanomagnetite suspensions, so-called magnetic ferrofluids, are applied in optics due to their magneto-optical properties. This review gives an overview of nanomagnetite synthesis and its properties. In addition, the preparation and application of magnetic nanofluids in optics, nanophotonics, and magnetic imaging are described.

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Section: Application Of Magnetic Ferrofluids In Optics and Nanophotonicsmentioning

confidence: 99%

Magnetite Nanoparticles: Synthesis and Applications in Optics and Nanophotonics

et al. 2022

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“…For example, the formation of luminous halos in ferrofluids can be found in systems based on the thermal lens effects, without the application of an external magnetic field [35], or that is possible to observe structural changes in the solution of ferrofluid applying an external electric field [36]. Other interesting applications involve the development of sensors [37] and new optical elements [38]. (c,d), the projections onto a screen of a laser beam are scattered by these two plates.…”

Section: Formation Of Horocycles Of Light In Ferrocellmentioning

confidence: 99%

Horocycles of Light in a Ferrocell

2021

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We studied the effects of image formation in a device known as Ferrocell, which consists of a thin film of a ferrofluid solution between two glass plates subjected to an external magnetic field in the presence of a light source. Following suggestions found in the literature, we compared the Ferrocell light scattering for some magnetic field configurations with the conical scattering of light by thin structures found in foams known as Plateau borders, and we discuss this type of scattering with the concept of diffracted rays from the Geometrical Theory of Diffraction. For certain magnetic field configurations, a Ferrocell with a point light source creates images of circles, parabolas, and hyperboles. We interpret the Ferrocell images as analogous to a Möbius transformation by inversion of the magnetic field. The formation of circles through this transformation is known as horocycles, which can be observed directly in the Ferrocell plane.

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“…As such, it is suitable for use in highly controlled environments such as nuclear or chemical plants [7]. Currently, optical fiberbased sensors are used to monitor various physical and chemical properties such as humidity [8], microbends [9], [10], electric field [11], [12], temperature [13], [14], pressure [ 15], magnetic field [16], gas [17], [18], corrosion [19]- [21] among others.…”

Section: Corrosion Sensor Using Metallic Doublementioning

confidence: 99%

Corrosion Sensor Using Metallic Double Layer in Optical Fiber

Oliveira

Silva

Alves

et al. 2021

J. Microw. Optoelectron. Electromagn. Appl.

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In this paper, a new optical fiber corrosion sensor based on metallic bilayers is described. The detection region is located at a fiber end facet and we present simulations as well as experimental results in controlled lab conditions for Ti(10 nm)/Al(10 nm) and Ni(5 nm)/Al(5 nm) bilayers. We perform the characterization of the device by numerical simulations using the COMSOL Multiphysics software, and with an analytical model, which makes use of the Fresnel equations. According to the simulations, the change in the reflected optical signal over time is related to variations in the thickness of the metallic films by the corrosive process and, consequently, the corrosion rate in each metal of the bilayer can be obtained. Upon the simulation results, sensor devices were fabricated by depositing thin metallic films on the cleaved facet of the optical fiber using the sputtering method. We show that the use of a metallic bilayer as a transducer, instead of a monolayer, improves the sensor measuring interval (20 ± 1 nm) and provides information about the corrosion rate along the corrosion process.

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Vector magnetic field sensor based on U-bent single-mode fiber and magnetic fluid

Cited by 69 publications

References 42 publications

Magnetite Nanoparticles: Synthesis and Applications in Optics and Nanophotonics

Magnetite Nanoparticles: Synthesis and Applications in Optics and Nanophotonics

Horocycles of Light in a Ferrocell

Corrosion Sensor Using Metallic Double Layer in Optical Fiber

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