Tunable magneto–optic modulation based on magnetically responsive nanostructured magnetic fluid

doi:10.1088/1674-1056/20/10/107501

中国物理B ›› 2011, Vol. 20 ›› Issue (10): 107501-107501.doi: 10.1088/1674-1056/20/10/107501

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Tunable magneto–optic modulation based on magnetically responsive nanostructured magnetic fluid

白学坤, 卜胜利, 王伦唯, 王响, 于国君, 继红柱

College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

收稿日期:2011-01-26 修回日期:2011-06-07 出版日期:2011-10-15 发布日期:2011-10-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10704048), the Innovation Program of Shanghai Municipal Education Commission, China (Grant No. 11YZ120), and the Innovation Fund Project for Graduate Student of Shanghai, China (Grant No. JWCXSL1022).

Tunable magneto–optic modulation based on magnetically responsive nanostructured magnetic fluid

Bai Xue-Kun(白学坤),Pu Sheng-Li(卜胜利)^†, Wang Lun-Wei(王伦唯), Wang Xiang(王响), Yu Guo-Jun(于国君), and Ji Hong-Zhu(纪红柱)

College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

Received:2011-01-26 Revised:2011-06-07 Online:2011-10-15 Published:2011-10-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10704048), the Innovation Program of Shanghai Municipal Education Commission, China (Grant No. 11YZ120), and the Innovation Fund Project for Graduate Student of Shanghai, China (Grant No. JWCXSL1022).

摘要/Abstract

摘要： Magnetic fluid is a kind of functional composite material with nanosized structure and unique optical properties. The tunable magneto-optic modulation of magnetic fluid under external magnetic field, achieved by adjusting the polarization direction of incident light, is investigated theoretically and experimentally in this work. The corresponding modulation depth and response time are obtained. The accompanying mechanisms are clarified by using the theory of dichroism of magnetic fluid and the aggregation/disintegration processes of magnetic particles within magnetic fluid when the external magnetic field turns on/off.

Abstract: Magnetic fluid is a kind of functional composite material with nanosized structure and unique optical properties. The tunable magneto-optic modulation of magnetic fluid under external magnetic field, achieved by adjusting the polarization direction of incident light, is investigated theoretically and experimentally in this work. The corresponding modulation depth and response time are obtained. The accompanying mechanisms are clarified by using the theory of dichroism of magnetic fluid and the aggregation/disintegration processes of magnetic particles within magnetic fluid when the external magnetic field turns on/off.

Key words: magnetic fluid, tunable magneto-optic modulation, modulation depth, response time

中图分类号: (Magnetic liquids)

75.50.Mm

78.15.+e (Optical properties of fluid materials, supercritical fluids and liquid crystals) 78.20.Ls (Magneto-optical effects)

白学坤, 卜胜利, 王伦唯, 王响, 于国君, 继红柱. Tunable magneto–optic modulation based on magnetically responsive nanostructured magnetic fluid[J]. 中国物理B, 2011, 20(10): 107501-107501.

Bai Xue-Kun(白学坤),Pu Sheng-Li(卜胜利), Wang Lun-Wei(王伦唯), Wang Xiang(王响), Yu Guo-Jun(于国君), and Ji Hong-Zhu(纪红柱) . Tunable magneto–optic modulation based on magnetically responsive nanostructured magnetic fluid[J]. Chin. Phys. B, 2011, 20(10): 107501-107501.

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Tunable magneto–optic modulation based on magnetically responsive nanostructured magnetic fluid

Tunable magneto–optic modulation based on magnetically responsive nanostructured magnetic fluid

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