A new one-dimensional photonic crystal magnetic sensor based on magnetic fluid film with excellent sensing ability and figure of merit

Ge, Daohan; Chen, Hui; Zhou, Hu; Shi, Jiakang; Zhang, Liqiang

doi:10.1016/j.jmmm.2021.168753

Cited by 10 publications

(6 citation statements)

References 33 publications

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“…The FOM is an important parameter for evaluating sensor performance 18 FOM=HFWHM×S(RIU−1),where H is the resonance depth, FWHM is the full width at half peak, and S is the sensor sensitivity. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…is the refractive index of the magnetic fluid, V is the porosity of the nanoporous membrane, and n eff is the equivalent refractive index of the photonic crystal. Because the refractive index of the magnetic fluid, n MF (1.4244 ∼ 1.4320) 18 is less than that of the dielectric layer (n SiO 2 , n TiO 2 ). According to the theory of dielectric constant, the effective refractive indices of SiO 2 and TiO 2 dielectric layers are…”

Section: Structure and Calculation Methodsmentioning

confidence: 99%

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One-dimensional photonic crystal magnetic sensors based on incomplete surface defect patterns

Zhang

Chen

et al. 2023

Opt. Eng.

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.We propose and study an innovative magnetic sensor of incomplete surface defect one-dimensional (1D) photonic crystal composed of magnetic fluid, SiO2, and TiO2 as defect layers. The magnetic fluid film covers the surface of the 1D photonic crystal, whereas the magnetic fluid penetrates into the array of circular holes with period ∧ inscribed on the dielectric layers of SiO2 and TiO2 to form the incomplete surface defect layer. The sensing characteristics of a 1D photonic crystal magnetic sensor (1D-PCMS) were analyzed using the theory of rigorous coupled wave analysis. The innovative use of the angular interrogation method in magnetic field detection has investigated the effect of defect layer structure parameters, optical dielectric loss on magnetic sensor sensitivity and quality factor at a fixed wavelength. This incomplete surface defect mode 1D-PCMS structure demonstrates the feasibility of scanning angular measurements of magnetic fields and provides a reference for future research on 1D-PCMS based on angular interrogation.

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Section: Resultsmentioning

confidence: 99%

Section: Structure and Calculation Methodsmentioning

confidence: 99%

One-dimensional photonic crystal magnetic sensors based on incomplete surface defect patterns

Zhang

Chen

et al. 2023

Opt. Eng.

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“…Ge et al 14 . proposed a magnetic sensor structure with 1D photonic crystals based on the MF film that is covered on the surface of 1D photonic crystals.…”

Section: Introductionmentioning

confidence: 99%

“…Ge et al 14 proposed a magnetic sensor structure with 1D photonic crystals based on the MF film that is covered on the surface of 1D photonic crystals. By changing the thickness of the SiO 2 defect layer, the sensitivity of this sensor is over 816.5 pm∕Oe under the magnetic field range of 30 to 90 Oe.…”

Section: Introductionmentioning

confidence: 99%

Effect of lithium niobate on the sensing characteristics of magnetic and thermal sensor with one-dimensional photonic crystal

et al. 2023

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.A highly sensitive one-dimensional photonic crystal magnetic and thermal sensor with lithium niobite (LiNbO3) used as the defect layer is proposed. The rigorous coupled wave analysis theory and the wavelength interrogation method were performed to further investigate the effects of different defect layers and magnetic fluid film structure parameters on the sensitivity and figure of merit (FOM). The results show that the introduction of LiNbO3 can significantly improve the sensing performance. When LiNbO3 was introduced as the defect layer, the magnetic field detection sensitivity increased from 0.817 to 1.9133 nm / Oe, whereas the temperature detection sensitivity increased from −0.0724 to 0.304 nm / ° C. Meanwhile, it provides a high FOM value of 8.7099 Oe − 1. Our work provides a guideline for the future application of LiNbO3 materials in magnetic and thermal sensors.

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“…Since the discovery of the Faraday effect, magneto-optical active materials have been widely used in photonic devices, , such as optical isolators, optical circulators, optical switches, magneto-optic modulators, and high-performance magnetic field sensors. − Magnetic fluid, which is particularly sensitive to the external magnetic field, is a new type of potential magneto-optical material . Compared with solid magneto-optical materials that have been put into practical application in 5G telecommunication, information data storage, microwave transformation devices, and so on, flexible magneto-optical materials have received less attention so far.…”

mentioning

confidence: 99%

A Stable 3d–4f Heterometallic Cluster with Magneto-Optical Activity

Yang

et al. 2022

Inorg. Chem.

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A new one-dimensional photonic crystal magnetic sensor based on magnetic fluid film with excellent sensing ability and figure of merit

Cited by 10 publications

References 33 publications

One-dimensional photonic crystal magnetic sensors based on incomplete surface defect patterns

One-dimensional photonic crystal magnetic sensors based on incomplete surface defect patterns

Effect of lithium niobate on the sensing characteristics of magnetic and thermal sensor with one-dimensional photonic crystal

A Stable 3d–4f Heterometallic Cluster with Magneto-Optical Activity

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