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Listar por palabra clave "Diffraction limit"

RiuNet: Repositorio Institucional de la Universidad Politécnica de Valencia

Listar por palabra clave "Diffraction limit"

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    Enhancing resolution of terahertz imaging systems below the diffraction limit 
    Calvo-Gallego, Jaime; Notario-Delgado, Juan A.; Minin, Oleg V.; Abidi, El Hadj; Ferrando Bataller, Miguel; Fobelets, Kristel; Velázquez-Pérez, Jesús E.; Minin, Igor V.; Meziani, Yahya M. (Elsevier, 2023-09)
    [EN] We report on resolution enhancement of sub-terahertz (THz) images by using the terajet effect. A mesoscale cuboid dielectric particle, used to establish the terajet, was placed in front of an object located at the ...
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    Perfect-Lens Theory Enables Metasurface Reflectors for Subwavelength Focusing 
    Taghvaee, Hamidreza; Liu, Fu; Diaz Rubio, Ana; Tretyakov, Sergei (American Physical Society, 2023-01-03)
    [EN] Breaking the so-called diffraction limit on the resolution of optical devices and achieving subwavelength focusing requires tailoring the evanescent spectrum of wave fields. There are several possible approaches, all ...
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    Wavelength-scale gas-filled cuboid acoustic lens with diffraction limited focusing 
    Rubio Michavila, Constanza; Tarrazó-Serrano, Daniel; Minin, Oleg V.; Uris Martínez, Antonio; Minin, Igor V. (Elsevier, 2019)
    [EN] Per the laws of geometrical optics, a plane-parallel medium does not possess focusing properties. However, in this paper, we demonstrate for the first time that an acoustic cuboid particle filled with CO2 is able to ...