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Broadband Terahertz Wave Deflection Based on C‐shape Complex Metamaterials with Phase Discontinuities
Author(s) -
Zhang Xueqian,
Tian Zhen,
Yue Weisheng,
Gu Jianqiang,
Zhang Shuang,
Han Jiaguang,
Zhang Weili
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201204850
Subject(s) - terahertz radiation , broadband , optics , materials science , metamaterial , classification of discontinuities , polarization (electrochemistry) , optoelectronics , physics , mathematical analysis , chemistry , mathematics
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.