Journal Article10.1088/1361-6463/ABACED
Active metamaterials and metadevices: a review
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About: This article is published in Journal of Physics D. The article was published on 16 Sep 2020.
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Citations
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Free switch between bound states in the continuum (BIC) and quasi-BIC supported by graphene-metal terahertz metasurfaces
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TL;DR: In this article, the free switch between BIC and quasi-BIC is successfully achieved by introducing the structured graphene into the metal terahertz metasurfaces, which is based on free-electron concentration of graphene changing from semiconductor-like to metal-like with adjustment of Fermi energy.
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References
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Nonlinear anisotropic dielectric metasurfaces for ultrafast nanophotonics
Giuseppe Della Valle,Ben Hopkins,Lucia Ganzer,Tatjana Stoll,Mohsen Rahmani,Stefano Longhi,Yuri S. Kivshar,Costantino De Angelis,Dragomir N. Neshev,Giulio Cerullo +9 more
TL;DR: In this paper, a quantitative model is developed to identify and disentangle the three physical processes that govern the ultrafast changes of the nanobrick optical properties, namely two-photon absorption, free-carrier relaxation, and lattice heating.
61
Reconfigurable metamaterials for terahertz wave manipulation.
TL;DR: A comprehensive overview of various types of reconfigurable metamaterials that are utilized to manipulate the intensity, phase, polarization, and propagation direction of terahertz waves is presented.
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Light-assisted, templated self assembly using a photonic-crystal slab
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Light-assisted, templated self-assembly using a photonic-crystal slab.
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Cryogenic temperatures as a path towards high-Q terahertz metamaterials
TL;DR: In this paper, the optical properties of planar thin film metamaterials were measured at room and liquid nitrogen temperatures using terahertz time-domain spectroscopy and a 14% increase in the quality factor of the resonances was observed.