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

被引：11

作者：

Bai Xue-Kun ^{[1
]}

Pu Sheng-Li ^{[1
]}

Wang Lun-Wei ^{[1
]}

Wang Xiang ^{[1
]}

Yu Guo-Jun ^{[1
]}

Ji Hong-Zhu ^{[1
]}

机构：

[1] Univ Shanghai Sci & Technol, Coll Sci, Shanghai 200093, Peoples R China

来源：

CHINESE PHYSICS B | 2011年 / 20卷 / 10期

基金：

中国国家自然科学基金;

关键词：

magnetic fluid; tunable magneto optic modulation; modulation depth; response time; RELAXATION BEHAVIOR; PHOTONIC CRYSTALS; BAND-GAP; LIGHT; FERROFLUIDS; BIREFRINGENCE; INTENSITY; DICHROISM;

D O I：

10.1088/1674-1056/20/10/107501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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.

引用

页数：6

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