Listar por tema "Metamaterials"
Mostrando ítems 41-46 de 46
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Shaping the quantum vacuum with anisotropic temporal boundaries
Vázquez Lozano, Juan Enrique; Liberal Olleta, Íñigo
(De Gruyter, 2022)
Artículo / Artikulua 
Temporal metamaterials empower novel forms of wave manipulation with direct applications to quantum state transformations. In this work, we investigate vacuum amplification effects in anisotropic temporal boundaries. Our ... -
A slow light fishnet-like absorber in the millimeter-wave range
Navarro Cía, Miguel ; Torres Landívar, Víctor ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario (EMW Publishing, 2011)
Artículo / Artikulua
A novel route to achieve a narrowband free-space electromagnetic absorber in any range of the spectrum based on stacked subwavelength hole arrays is proposed. The absorption is obtained by means of a slow light mode inside ... -
A study of super-oscillatory lenses of high frecuencies using metamaterials
(2020) Trabajo Fin de Máster/Master Amaierako Lana
The first part of this work deals with the design, numerical demonstration and experimental characterization of an ultra-thin super-oscillatory lens (SOL) based on metamaterials (MTMs) at the Terahertz range, with a ... -
Super-oscillatory metalens at terahertz for enhanced focusing with reduced side lobes
Legaria Lerga, Santiago; Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (MDPI, 2018)
Artículo / Artikulua
In this paper, we design and numerically demonstrate an ultra-thin super-oscillatory metalens with a resolution below the diffraction limit. The zones of the lens are implemented using metasurface concepts with hexagonal ... -
Tunable beam steering enabled by graphene metamaterials
Orazbayev, Bakhtiyar ; Beruete Díaz, Miguel ; Khromova, Irina (Optical Society of America, 2016)
Artículo / Artikulua
We demonstrate tunable mid-infrared (MIR) beam steering devices based on multilayer graphene-dielectric metamaterials. The effective refractive index of such metamaterials can be manipulated by changing the chemical potential ... -
Tunable deflection and asymmetric transmission of THz waves using a thin slab of graphene-dielectric metamaterial, with and without ENZ components
Serebryannikov, Andriy E.; Hajian, Hodjat; Beruete Díaz, Miguel ; Ozbay, Ekmel; Vandenbosch, Guy A. E. (Optical Society of America, 2018)
Artículo / Artikulua
Tunable deflection of obliquely incident, linearly polarized terahertz waves is theoretically studied in a wide frequency range around 20 THz, by combining a thin slab of graphene-dielectric metamaterial (with ten layers ...
