Magnetic-field-induced birefringence and particle agglomeration in magnetic fluids

Di, Ziyun; Chen, Xianfeng; Pu, Shengli; Hu, Xiao; Xia, Yuxing

doi:10.1063/1.2392824

Cited by 86 publications

(38 citation statements)

References 21 publications

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“…The negative pressure of the vacuum is 5 Pa. Moreover, the magnetic field can generate chain formation which gives rise to the birefringence effect inside the core (Di et al 2006).…”

Section: Methodsmentioning

confidence: 99%

Magnetic-fluid core optical fiber

Zou

Liu

Shen

et al. 2010

Microfluid Nanofluid

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We report the first fabrication of magnetic-fluid core optical fiber (MFCOF). Paraffin-based magnetic fluid is selected as the liquid and filled in a hollow core fiber with the core-diameter of 5 lm and the length of 20 cm. The optical properties of MFCOF were investigated by sending light into them. The wires allow multi-mode operation, and have an optical loss less than 0.6 dB/cm. In contradiction to the traditional liquid core optical fiber, the optical properties of MFCOF can be tunable under the external magnetic field, which may find applications in device physics on combined fields of magnetic fluid and nonlinear fiber optics.

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“…The negative pressure of the vacuum is 5 Pa. Moreover, the magnetic field can generate chain formation which gives rise to the birefringence effect inside the core (Di et al 2006).…”

Section: Methodsmentioning

confidence: 99%

Magnetic-fluid core optical fiber

Zou

Liu

Shen

et al. 2010

Microfluid Nanofluid

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“…As a stable colloidal suspension, magnetic fluid (MF) has excellent magnetic-optical properties such as refractive index (RI) tunability [1], birefringence effect [2,3] and Faraday effect [4]. In the past few decades, MF-based fiber-optic magnetic field sensors have attracted much attention of researchers and been widely developed with various optical fiber measurement configurations.…”

Section: Introductionmentioning

confidence: 99%

Temperature insensitive magnetic field sensor based on an etched TCFMI cascaded with a FBG

Yan

Zhang

2015

2015 International Conference on Optical Instruments and Technology: Optical Sensors and Applications

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In this paper, a dual-parameter measurement scheme based on an etched thin core fiber modal interferometer (TCMI) cascaded with a fiber Bragg grating (FBG) is proposed and experimentally demonstrated for simultaneous measurement of magnetic field and temperature. The magnetic fluid cladding surrounding the TCFMI was used as a magnetic field-to-refractive index transducer. To depress the temperature influence on the performance of such sensors, an FBG was inscribed in the leading SMF of the TCFMI. Experimental results show that, the reflection of the FBG has a magnetic field intensity and temperature sensitivities of -0.017 dB/Oe and 0.133 dB/℃, respectively, while the Bragg wavelength of the FBG only has a temperature sensitivity of 13.23 pm/℃. By monitoring the reflection wavelength and intensity of the Bragg mode, the intensity of the magnetic field and the temperature variance can be measured, which enables magnetic field sensing under strict temperature environments. Meanwhile the reflective sensing probe is more compact and practical for applications in hard-to-reach conditions.

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“…As a magneto-optical nano-material, MF has captured much research interest owing to its distinguished magnetic-optical effects, such as Faraday Effect, refractive index tunability, birefringence, tunable absorption coefficient, dichroism and field dependent transmission [9,10]. It is one kind of blackbrown stable colloidal translucent liquid, which comprises solid nano-magnetic particles coated with surfactant suspending in appropriate carrier fluids; thus MF has the magnetism of solid magnet as well as the fluidity of liquid [11].…”

Section: Introductionmentioning

confidence: 99%