基于人工复合材料的太赫兹波双波段滤波  

Direct fabrication of terahertz dual-band resonator

作　　者：赵冬梅[1] 施宇蕾[1] 周庆莉[1] 李磊[1] 孙会娟[2,3] 张存林[1] 

机构地区：[1]太赫兹光电子学省部共建教育部重点实验室北京市太赫兹波谱与成像重点实验室中关村开放实验室首都师范大学物理系,北京100048 [2]北京联合大学基础部,北京100101 [3]北京理工大学光电学院,北京100081

出　　处：《物理学报》2011年第9期277-283,共7页Acta Physica Sinica

基　　金：国家重点基础研究计划973(批准号:2007CB310408;2006CB302901);国家自然科学基金(批准号:10804077;11011120242;10904098);北京市教委项目(批准号:KM200910028006);北京市科技新星;北京市属市管高校人才强教计划项目;国家信息功能材料重点实验室和中国科学院上海微系统与信息技术研究所资助的课题~~

摘　　要：本文分别从实验和理论模拟两方面详细的讨论了金属双环和反双环两种亚波长阵列结构在太赫兹波段的双频率响应特性.这两种双环结构都可以实现双频率调制,金属双环结构表现为两个明显的吸收峰,反双环结构则表现出明显的透过峰.这两种结构不仅在物理结构上互补,在太赫兹波段的响应也表现为吸收和透过互补的特性.其中高频响应来源于内环电子振荡,低频影响则来源于外环电子振荡,并且这种结构在太赫兹波段的响应与周期无关.This paper deals with the dual- band response of double ring metal array structure and anti-double ring structure in a terahertz wave range. The two samples are complementary in structure and their responses in the terahertz band are also complementary. The double ring structure shows two absorption crests and the anti-double ring structure shows two corresponding peaks at the same frequencies. The inner ring of the double ring structure is a source of high-frequency response, while the outer ring leads to the low-frequency vibration. Therefore, we can change the inner and the outer ring size respectively to control the terahertz response. And this response is unaffected by the period of the structure. The double ring structures provide a new method to produce multi-frequency terahertz resonator.

关 键 词：太赫兹 滤波器 亚波长阵列 FDTD 

分 类 号：O441.4[理学—电磁学]