Mechanically tunable terahertz metamaterials
نویسندگان
چکیده
منابع مشابه
MetaMaterials A tunable terahertz response
M etamaterials — engineered composite materials with unique optical properties — have become one of the hot topics of photonics research in the past few years. By cleverly designing and assembling an array of subwavelength metallic structures, it is possible to construct a composite material with optical properties that cannot be found in nature. As the metallic structures are much smaller than...
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Plasmons describe collective oscillations of electrons. They have a fundamental role in the dynamic responses of electron systems and form the basis of research into optical metamaterials. Plasmons of two-dimensional massless electrons, as present in graphene, show unusual behaviour that enables new tunable plasmonic metamaterials and, potentially, optoelectronic applications in the terahertz f...
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Using terahertz time domain spectroscopy we demonstrate tunable polarization rotation and circular dichroism in intrinsically non-chiral planar terahertz metamaterials without twofold rotational symmetry. The observed effect is due to extrinsic chirality arising from the mutual orientation of the metamaterial plane and the propagation direction of the incident terahertz wave.
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The optically tunable properties of the hybrid three-dimensional (3D) metamaterials with dual- and broadband response frequencies are theoretically investigated in the terahertz spectrum. The planar double-split-ring resonators (DSRRs) and the standup double-split-ring resonators are fabricated on a sapphire substrate, forming a 3D array structures. The bi-anisotropy of the hybrid 3D metamateri...
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Jiangfeng Zhou,1,* Dibakar Roy Chowdhury,1 Rongkuo Zhao,2 Abul K. Azad,1 Hou-Tong Chen,1,† Costas M. Soukoulis,2 Antoinette J. Taylor,1 and John F. O’Hara1,‡ 1Center for Integrated Nanotechnologies, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA 2Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, ...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2013
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.4773238