磁流体的光学特性及其在光电信息传感领域中的应用  

Optical Properties of the Magnetic Fluid and its Application in Optical Information Technology and Sensor

作　　者：赵勇[1] 董俊良[2] 陈菁菁[1] 李星[1] 

机构地区：[1]东北大学信息科学与工程学院,沈阳110004 [2]清华大学自动化系,北京100084

出　　处：《光电工程》2009年第7期126-131,共6页Opto-Electronic Engineering

基　　金：国家教育部新世纪优秀人才支持计划(NCET-08-0102)基金资助项目;辽宁省自然科学基金(20082039)资助项目

摘　　要：详细介绍了磁流体的光学性质,包括磁流体的热透镜效应、磁光效应、磁流体折射率的可控性以及磁致分色效应。由于磁流体的光学性质具有可调谐性,这为磁流体在新型光子器件与光纤传感器的设计和研究提供了新原理、新材料。论述了应用磁流体设计的多路复用器、光开关、光纤调制器、可调谐磁流体光栅与可调谐滤波器,以及基于磁流体的光纤电流传感器原理和结构。Magnetic fluid is a new type function material which has unique optical properties, including the thermal lens effect, magneto-optical effect, tunable refractive index and magneto-chromatic effect. Magnetic fluid provides new principle and material to the design and research of the novel photonic devices and optical fiber sensors. Wavelength-division multiplexing, optical switch, optical fiber modulator, tunable grating and filter based on the magnetic fluid are presented. Finally, the principle and structure of the optical fiber current sensors based on the magnetic fluid are analyzed.

关 键 词：磁流体 光学特性 光纤电流传感器 磁光效应 

分 类 号：TN253[电子电信—物理电子学]