基于具有相位不连续性的 C 形复超材料的太赫兹宽带波偏转。
Broadband terahertz wave deflection based on C-shape complex metamaterials with phase discontinuities.
机构信息
Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, People's Republic of China.
出版信息
Adv Mater. 2013 Sep 6;25(33):4567-72. doi: 10.1002/adma.201204850. Epub 2013 Jun 21.
PMID:23787976
Abstract
A broadband terahertz wave deflector based on metasurface induced phase discontinuities is reported. Various frequency components ranging from 0.43 to 1.0 THz with polarization orthogonal to the incidence are deflected into a broad range of angles from 25° to 84°. A Fresnel zone plate consequently developed from the beam deflector is capable of focusing a broadband terahertz radiation.
摘要
本文报道了一种基于超表面诱导相位不连续的宽带太赫兹波偏折器。与入射光偏振正交的各种频率分量（0.43 至 1.0 THz）被偏折到 25°至 84°的宽角度范围。由此太赫兹波偏折器衍生出的菲涅尔波带片能够实现宽带太赫兹辐射聚焦。
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