Results 101 to 110 of about 157,954 (272)
Broadband Terahertz Transparency in a Switchable Metasurface
IEEE Photonics Journal, 2015 Plasmon-induced transparency in terahertz metamaterials markedly modifies the dispersive properties of an otherwise opaque medium and reveals unprecedented prospects on novel functional components.
Xiaoqiang Su +8 more
doaj +1 more source
Ultrafast snapshots of terahertz electric potentials across ring-shaped quantum barriers
Nanophotonics, 2023 Probing the time evolution of the terahertz electric field within subwavelength dimensions plays a crucial role in observing the nanoscale lightwave interactions with fundamental excitations in condensed-matter systems and in artificial structures, such ...
Kang Taehee +4 more
doaj +1 more source
Intrinsic left-handed electromagnetic properties in anisotropic superconductors
, 2017 Left-handed materials usually are realized in artificial subwavelength structures. Here we show that some anisotropic superconductors, such as $\mathrm{Bi_2Sr_2CaCu_2O_{8+\delta}}$, $\mathrm{YBa_2Cu_xO_y}$ and $\mathrm{La_{2-x}Sr_xCuO_4}$, are intrinsic ...
Chen, Hou-Tong, Lin, Shi-Zeng
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Advanced Photonics Research, EarlyView.This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida +3 more
wiley +1 more source
Coupling between a dark and a bright eigenmode in a terahertz metamaterial
, 2009 Terahertz time domain spectroscopy and rigorous simulations are used to probe the coupling between a dark and a bright plasmonic eigenmode in a metamaterial with broken symmetry.
Carsten Rockstuhl +4 more
core +1 more source
Terahertz Chiral Recognition Based on Metasurfaces
Advanced Photonics Research, EarlyView.A novel terahertz chiral sensing method based on a multilayer metallic metasurface is proposed. The left‐handed circularly polarized and right‐handed circularly polarized components in the linearly polarized illuminating light into two focal points and convert them back into linear polarization for convenient measurement.
Xuyang Ji +5 more
wiley +1 more source
Graphene Plasmonics for Terahertz to Mid-Infrared Applications
, 2014 In recent years, we have seen a rapid progress in the field of graphene plasmonics, motivated by graphene's unique electrical and optical properties, tunabilty, long-lived collective excitation and their extreme light confinement.
Avouris, Phaedon, Low, Tony
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Plasmon-induced transparency in graphene-based terahertz metamaterials [PDF]
2017 IEEE Workshop on Recent Advances in Photonics (WRAP), 2017 Plasmon-induced transparency (PIT) effect in a terahertz graphene metamaterial is numerically and theoretically analyzed. The proposed metamaterial comprises of a pair of graphene split ring resonators placed alternately on both sides of a graphene strip
K. M. Devi +4 more
semanticscholar +1 more source
Advanced Science, EarlyView.Terahertz resonances in crystalline heterostructures could close a spectral gap between conventional electronics and photonics while opening new windows on non‐equilibrium lattice dynamics. Femtosecond optical screening of the depolarization field in epitaxial PbTiO3/SrTiO3 superlattices launches a collective polar mode that oscillates near 1 THz and ...
Deepankar Sri Gyan +13 more
wiley +1 more source