[EN] Topological phases have recently been realized in bosonic systems. The associated boundary modes between regions of distinct topology have been used to demonstrate robust waveguiding, protected from defects by the ...
García Miquel, Ángel Héctor; Carbonell Olivares, Jorge; Sánchez-Dehesa Moreno-Cid, José(American Institute of Physics (AIP), 2012)
We present experimental results of electromagnetic wave modulation by the application of AC currents along a ferromagnetic microwire at the frequency range where left-handed transmission is observed. It is demonstrated ...
Anisotropic characteristics of cylindrically corrugated microstructures are analyzed in terms of their acoustic and electromagnetic (EM) behavior paying special attention to their differences and similarities. A simple ...
A multiple scattering formulation of two-dimensional (2D) acoustic metamaterials is presented. This approach is comprehensive and can lead to frequency-dependent effective parameters (scalar bulk modulus and tensorial mass ...
We report the design and the characterization of artificial structures made of periodical distributions of structured cylindrical scatterers embedded in a two-dimensional (2D) waveguide. For certain values of their geometrical ...
This Letter reports the design, fabrication, and experimental characterization of hyperbolic materials showing negative refraction and energy funneling of airborne sound. Negative refraction is demonstrated using a stack ...
García Chocano, Víctor Manuel(Editorial Universitat Politècnica de València, 2015-07-13)
[EN] The aim of this work is to design new acoustic devices based on arrangements of scattering units. First, the use of sonic crystals as noise barriers for traffic noise control is comprehensively analyzed. Due to the ...
Sánchez-Dehesa Moreno-Cid, José; García Chocano, Víctor Manuel; Torrent Martí, Daniel; Cervera Moreno, Francisco Salvador; Cabrera García, Suitberto; Simon, Francisco(Acoustical Society of America, 2011-03)
A systematic study of noise barriers based on sonic crystals made of cylinders that use recycled materials like absorbing component is reported here. The barriers consist of only three rows of perforated metal shells filled ...
[EN] The nonlocal effective permittivity tensor for photonic crystals (PCs), having dielectric and metallic inclusions in the unit cell, is calculated and analyzed within the homogenization theory based on the Fourier ...
Cutanda Henriquez, Vicente; Andersen, Peter Risby; Sánchez-Dehesa Moreno-Cid, José(Universidade do Porto, 2016-06-15)
[EN] Viscous and thermal losses of acoustic waves are usually neglected or accounted for as boundary
impedance. It is known, however, that acoustic losses become relevant in devices with some
dimension in the millimeter ...
Climente Alarcón, Alfonso; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José(American Institute of Physics, 2012-04-06)
We present the design, construction, and experimental characterization of the acoustic analogue of the so called photonic black-hole. The fabricated sample has cylindrical symmetry and consists of two parts, a shell that ...
Climente Alarcón, Alfonso; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José(American Institute of Physics (AIP), 2013)
This work presents a gradient index device for insulating from vibrations a circular area of a thin plate. The gradient of the refractive index is achieved exploiting the thickness-dependence of the dispersion relation of ...
We present an experimental and computational study of the response of twisted-cross metamaterials that provide near dispersionless optical rotation across a broad band of frequencies from 19 GHz to 37 GHz. We compare two ...
García Chocano, Víctor Manuel; Sánchez-Dehesa Moreno-Cid, José(Elsevier, 2013-01)
[EN] We report acoustic barriers that are designed to attenuate efficiently broadband noise. The barriers are structures consisting of only three layers of cylindrical units containing rubber crumb, a sound absorbing ...
Gao, Penglin; Sánchez-Dehesa Moreno-Cid, José; Wu, Linzhi(Acoustical Society of America, 2018-08)
[EN] The Poisson-like effect, describing the redirection of waves by 90 degrees, is shown to be feasible for flexural waves propagating in perforated thin plates. It is demonstrated that the lowest order symmetric leaky ...
García Chocano, Víctor Manuel; Graciá Salgado, Rogelio; Torrent Martí, Daniel; Cervera Moreno, Francisco Salvador; Sánchez-Dehesa Moreno-Cid, José(American Physical Society, 2012-05-14)
We present the experimental realization and characterization of an acoustic metamaterial with negative bulk modulus. The metamaterial consists of a two-dimensional array of cylindrical cavities, and the bulk modulus is ...
Elnady, Tamer; Elsabbagh, A.; Akl, W.; Mohamady, O.; García Chocano, Víctor Manuel; Torrent Martí, Daniel; Cervera Moreno, Francisco Salvador; Sánchez-Dehesa Moreno-Cid, José(American Institute of Physics (AIP), 2009-03-30)
We report an experimental study of acoustic effects produced by wind impinging on noise barriers based on two-dimensional sonic crystals with square symmetry. We found that the attenuation strength of sonic-crystal bandgaps ...
Based on the concepts of artificially microstructured materials, i.e. metamaterials, we present here the first practical realization of a radial wave crystal. This type of device was introduced as a theoretical proposal ...
Carbonell Olivares, Jorge; Torrent Martí, Daniel; Sánchez-Dehesa Moreno-Cid, José(Institute of Electrical and Electronics Engineers (IEEE), 2013-02)
Radial photonic crystals (RPCs) are a class of microstructured
media that possess very particular electromagnetic
features. Their properties are driven by radially dependent permittivity
and permeability profiles that ...
Díaz Rubio, Ana(Universitat Politècnica de València, 2013-02-19)
[ES] En este trabajo se analizarán las propiedades de las estructuras conocidas como Cristales Fotónicos Radiales y sus posibles aplicaciones como sensores de frecuencia y posición. Las propiedades de estos dispositivos ...