物理学报
物理學報
물이학보
2013年
4期
130-134
,共5页
赵强%岐业%戴雨涵%张继华%陈宏伟%杨传仁%张万里
趙彊%岐業%戴雨涵%張繼華%陳宏偉%楊傳仁%張萬裏
조강%기업%대우함%장계화%진굉위%양전인%장만리
人工电磁媒质%钛酸锶钡薄膜%介电非线性%调谐
人工電磁媒質%鈦痠鍶鋇薄膜%介電非線性%調諧
인공전자매질%태산송패박막%개전비선성%조해
metamaterial%barium strontium titanate thin film%dielectric nonlinear%tunability
数值仿真研究了内嵌钛酸锶钡薄膜夹层的金属网格谐振单元人工电磁媒质的谐振行为.垂直电磁波激励下,电磁响应频率随着内嵌夹层钛酸锶钡薄膜介电常数的变大呈现红移,调谐率为22.6%.本文提出的人工电磁媒质调谐方法只需要以结构单元的上下两层金属图形本身作为电极对内嵌夹层钛酸锶钡薄膜施加电压,极大地简化了可调谐人工电磁媒质的制备及应用,在太赫兹人工电磁媒质调制器等方面具有潜在的应用.
數值倣真研究瞭內嵌鈦痠鍶鋇薄膜夾層的金屬網格諧振單元人工電磁媒質的諧振行為.垂直電磁波激勵下,電磁響應頻率隨著內嵌夾層鈦痠鍶鋇薄膜介電常數的變大呈現紅移,調諧率為22.6%.本文提齣的人工電磁媒質調諧方法隻需要以結構單元的上下兩層金屬圖形本身作為電極對內嵌夾層鈦痠鍶鋇薄膜施加電壓,極大地簡化瞭可調諧人工電磁媒質的製備及應用,在太赫玆人工電磁媒質調製器等方麵具有潛在的應用.
수치방진연구료내감태산송패박막협층적금속망격해진단원인공전자매질적해진행위.수직전자파격려하,전자향응빈솔수착내감협층태산송패박막개전상수적변대정현홍이,조해솔위22.6%.본문제출적인공전자매질조해방법지수요이결구단원적상하량층금속도형본신작위전겁대내감협층태산송패박막시가전압,겁대지간화료가조해인공전자매질적제비급응용,재태혁자인공전자매질조제기등방면구유잠재적응용.
We present the tunable resonance behavior of laminated metal mesh metamaterial embedded by barium strontium titanate (BST) thin film. The electromagnetic frequency response shows a redshift when the dielectric constant of BST thin film increases, and the tunability is about 22.6%. For the tunable metamaterial proposed in this paper, the structural unit of metal graphics is used as electrodes to apply the electric potential, which simplifies the preparation and application of tunable THz metamaterials greatly. It has potential application in the THz media modulators.
