Investigation of magneto-induced linear dichroism of magnetic fluid

Bobo Du; Dexing Yang; Yang Bai; Yuan Yuan; Dong Mao; Wending Zhang; Xiaoyang She

doi:10.1364/AO.56.000739

Investigation of magneto-induced linear dichroism of magnetic fluid

Bobo Du, Dexing Yang, Yang Bai, Yuan Yuan, Dong Mao, Wending Zhang, Xiaoyang She

School of Physical Science and Technology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A fiber-optic component is fabricated with etched fiber coated by magnetic fluid (MF) for its evanescent field to be modulated by the MF. The magneto-induced linear dichroism of the MF is investigated under different temperatures with the component. The experimental results show that the MF possesses weak linear dichroism (maximum of 2.37% at 25°C) caused by its sparse magneto-induced chains. Considering the relationships between the linear dichroisms and temperature, there is a transition point of magnetic field at ∼4 mT. Up to ∼4 mT, the linear dichroisms decrease with the temperature; however, for higher magnetic field strengths, the linear dichroisms increase with the temperature. Interestingly, a small initial linear dichroism (up to 0.255% at 5°C) without magnetic field is also observed.

Original language	English
Pages (from-to)	739-742
Number of pages	4
Journal	Applied Optics
Volume	56
Issue number	3
DOIs	https://doi.org/10.1364/AO.56.000739
State	Published - 20 Jan 2017

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title = "Investigation of magneto-induced linear dichroism of magnetic fluid",

abstract = "A fiber-optic component is fabricated with etched fiber coated by magnetic fluid (MF) for its evanescent field to be modulated by the MF. The magneto-induced linear dichroism of the MF is investigated under different temperatures with the component. The experimental results show that the MF possesses weak linear dichroism (maximum of 2.37% at 25°C) caused by its sparse magneto-induced chains. Considering the relationships between the linear dichroisms and temperature, there is a transition point of magnetic field at ∼4 mT. Up to ∼4 mT, the linear dichroisms decrease with the temperature; however, for higher magnetic field strengths, the linear dichroisms increase with the temperature. Interestingly, a small initial linear dichroism (up to 0.255% at 5°C) without magnetic field is also observed.",

author = "Bobo Du and Dexing Yang and Yang Bai and Yuan Yuan and Dong Mao and Wending Zhang and Xiaoyang She",

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doi = "10.1364/AO.56.000739",

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T1 - Investigation of magneto-induced linear dichroism of magnetic fluid

AU - Du, Bobo

AU - Yang, Dexing

AU - Bai, Yang

AU - Yuan, Yuan

AU - Mao, Dong

AU - Zhang, Wending

AU - She, Xiaoyang

PY - 2017/1/20

Y1 - 2017/1/20

N2 - A fiber-optic component is fabricated with etched fiber coated by magnetic fluid (MF) for its evanescent field to be modulated by the MF. The magneto-induced linear dichroism of the MF is investigated under different temperatures with the component. The experimental results show that the MF possesses weak linear dichroism (maximum of 2.37% at 25°C) caused by its sparse magneto-induced chains. Considering the relationships between the linear dichroisms and temperature, there is a transition point of magnetic field at ∼4 mT. Up to ∼4 mT, the linear dichroisms decrease with the temperature; however, for higher magnetic field strengths, the linear dichroisms increase with the temperature. Interestingly, a small initial linear dichroism (up to 0.255% at 5°C) without magnetic field is also observed.

AB - A fiber-optic component is fabricated with etched fiber coated by magnetic fluid (MF) for its evanescent field to be modulated by the MF. The magneto-induced linear dichroism of the MF is investigated under different temperatures with the component. The experimental results show that the MF possesses weak linear dichroism (maximum of 2.37% at 25°C) caused by its sparse magneto-induced chains. Considering the relationships between the linear dichroisms and temperature, there is a transition point of magnetic field at ∼4 mT. Up to ∼4 mT, the linear dichroisms decrease with the temperature; however, for higher magnetic field strengths, the linear dichroisms increase with the temperature. Interestingly, a small initial linear dichroism (up to 0.255% at 5°C) without magnetic field is also observed.

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Investigation of magneto-induced linear dichroism of magnetic fluid

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