期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 50, 期 8, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2014.2310710
关键词
Fresnel reflection; magnetic fluid (MF); Monte Carlo; refractive index
资金
- National Natural Science Foundation of China [61273059, 61203206]
- IAPI Fundamental Research Funds [2013ZCX09]
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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