Tunable Characteristics and Mechanism Analysis of the Magnetic Fluid Refractive Index With Applied Magnetic Field

被引：66
作者：
Zhao, Yong [1 ,2 ]
Wu, Di [1 ]
Lv, Ri-Qing [1 ]
Ying, Yu [1 ]
机构：
[1] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China
[2] Northeastern Univ, State Key Lab Synthet Automat Proc Ind, Shenyang 110819, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2014年 / 50卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Fresnel reflection; magnetic fluid (MF); Monte Carlo; refractive index; SENSOR;
D O I：
10.1109/TMAG.2014.2310710
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The tunable refractive index of the magnetic fluid (MF) is a unique optical property, which has attracted a lot of research interest in recent years. In this paper, a method based on the Fresnel reflection at the fiber end face is presented. Experimental measurements are carried out to investigate the magnetic field (intensity and direction) and temperature-dependent refractive index of the MF. For a given concentration, with the increase of the magnetic field intensity, the nMF increases gradually when H//Light, while decreases when H perpendicular to Light. The effect of temperature on nMF is relatively insignificant with the sensitivity of -8 x 10(-5)/degrees C. In addition, the mechanism is analyzed from the point of the microstructure by the Monte Carlo method.
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页数：5
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