Tunable Effect of Double-Connective Dendritic Left-Handed Metamaterials Based on Electrorheological Fluids  

作　　者：郭继权 罗春荣 赵晓鹏 

机构地区：[1]Department of Applied Physics, Northwestern Polytechnical University, Xi' an 710072

出　　处：《Chinese Physics Letters》2009年第4期96-99,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 50872113 and 50632030, the National Basic Research Program of China under Grant No 2004CB719805, and the NPU Foundation for Fundamental Research （No WO18101）.

摘　　要：We present double-connective dendritic unit pairs which exhibit the left-handed property for electromagnetic wave normal incidence. Based on the tunable characteristics of electrorheological fluids （ERF） as the electric field, we experimentally study the influence of the distance of electrodes, the number of stacked layers, and the intensity of the external electric field upon the ERF to the left-handed transmission peak of the double-connective dendritic structure. The results show that the transmission could be enhanced with the increase of distance or the number of layers. Furthermore, by changing the intensity of the electric fields, the left-handed transmission peak can be modulated actively, and the maximum shift is up to 160 MHz.We present double-connective dendritic unit pairs which exhibit the left-handed property for electromagnetic wave normal incidence. Based on the tunable characteristics of electrorheological fluids （ERF） as the electric field, we experimentally study the influence of the distance of electrodes, the number of stacked layers, and the intensity of the external electric field upon the ERF to the left-handed transmission peak of the double-connective dendritic structure. The results show that the transmission could be enhanced with the increase of distance or the number of layers. Furthermore, by changing the intensity of the electric fields, the left-handed transmission peak can be modulated actively, and the maximum shift is up to 160 MHz.

关 键 词：gamma-ray bursts GAMMA-RAYS RELATIVITY 

分 类 号：O37[理学—流体力学] TS251.6[理学—力学]