太赫兹辐射
光学
超材料
不对称
圆极化
线极化
极化(电化学)
物理
反射(计算机编程)
椭圆极化
圆二色性
线性二色性
全内反射
材料科学
结晶学
物理化学
微带线
量子力学
化学
程序设计语言
计算机科学
激光器
作者
Fenghao Yin,Yanlin Lv,Dongyan Xu,Xing Ri Jin,Ying Qiao Zhang
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2023-07-18
卷期号:31 (17): 27171-27171
被引量:14
摘要
We propose a terahertz chiral metamaterial as a multi-functional device to manipulate asymmetry transmission of linear polarized waves, linear-to-elliptical polarization conversion and circular dichroism in transmission mode while asymmetry reflection of circular polarized waves. For incidence of linear polarized waves, dual-band asymmetry transmission is shown around 0.42 THz and 1.04 THz where asymmetry transmission factors reach up to two peak values: ∼0.51 and ∼0.55, respectively. Intense linear-to-elliptical polarization conversion occurs at 0.81 THz and 0.97 THz, respectively. For incidence of circular polarized waves, a strong circular dichroism appears at 0.36 THz where circular dichroism parameter reaches to ∼0.64 and asymmetry reflection is displayed around 0.36 THz with the maximum of asymmetry reflection factors approaching to 0.55.
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