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Listar por palabra clave "Periodic structures"

Mostrando ítems 1-12 de 12

Acoustically penetrable sonic crystals based on fluid-like scatterers

Cebrecos Ruiz, Alejandro; Romero García, Vicente; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; Botey, M.; Herrero, R.; Cheng, Y. C.; Staliünas, Kestutis (IOP Publishing: Hybrid Open Access, 2015-01-21)

We propose a periodic structure that behaves as a fluid fluid composite for sound waves, where the building blocks are clusters of rigid scatterers. Such building-blocks are penetrable for acoustic waves, and their properties ...
Análisis numérico y experimental de estructuras periódicas formadas por materiales absorbentes

Plumed Lorente, Álvaro (Universitat Politècnica de València, 2014-11-27)

Las estructuras periódicas, son conocidas en acústica por los fenómenos generados en la propagación de ondas de presión a través de estas, consiguiendo fenómenos físicos como cancelación del sonido, focalización, uso ...
Band gaps and cavity modes in dual phononic and photonic strip waveguides

Pennec, Yan; Rouhani, Bahram Djafari; Li, C.; Escalante Fernández, José María; Martínez Abietar, Alejandro José; Benchabane, Sarah; Laude, Vincent; Papanikolaou, N. (American Institute of Physics, 2011)

[EN] We discuss theoretically the simultaneous existence of phoxonic, i.e., dual phononic and photonic, band gaps in a periodic silicon strip waveguide. The unit-cell of this one-dimensional waveguide contains a hole in ...
Compact Combline Filter Embedded in a Bed of Nails

Baquero Escudero, Mariano; Valero-Nogueira, Alejandro; Ferrando-Rocher, Miguel; Bernardo Clemente, Bernardo; Boria Esbert, Vicente Enrique (Institute of Electrical and Electronics Engineers, 2019-04)

[EN] In this paper, we propose a compact topology for high-frequency bandpass filters using coaxial cavities embedded in a bed of nails, including a complete design procedure combining equivalent circuit models and full-wave ...
Design of single-mode waveguides for enhanced light-sound interaction in honeycomb-lattice silicon slabs

Escalante Fernández, José María; Martínez Abietar, Alejandro José; Laude, Vincent (American Institute of Physics (AIP), 2014-02-14)

We present the design of two waveguides (ladder and slot-ladder waveguides) implemented in a silicon honeycomb photonic-phononic crystal slab, which can support slow electromagnetic and elastic guided modes simultaneously. ...
Enhanced of sound by soft reflections in exponentially chirped crystals

Cebrecos Ruiz, Alejandro; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; Staliünas, Kestutis; Romero García, Vicente; García-Raffi, L. M. (American Institute of Physics (AIP): Open Access Journals, 2014-12)

The enhancement of sound inside a two dimensional exponentially chirped crystal during the soft reflections of waves is experimentally and theoretically explored in this work. The control of this enhancement is achieved ...
Extraordinary absorption of sound in porous lamella-crystals

Christensen, Johan; Romero García, Vicente; Picó Vila, Rubén; Cebrecos Ruiz, Alejandro; Garcia de Abajo, Francisco Javier; Mortensen, N. A.; Willatzen, M.; Sánchez Morcillo, Víctor José (Nature Publishing Group: Open Access Journals - Option C, 2014-04-14)

We present the design of a structured material supporting complete absorption of sound with a broadband response and functional for any direction of incident radiation. The structure which is fabricated out of porous ...
Harmonic distortion in microwave photonic filters

Rius Mercado, Manuel; Mora Almerich, José; Bolea Boluda, Mario; Capmany Francoy, José (Optical Society of America, 2012)

We present a theoretical and experimental analysis of nonlinear microwave photonic filters. Far from the conventional condition of low modulation index commonly used to neglect high-order terms, we have analyzed the harmonic ...
High performance photonic biosensors based on periodic configurations

García-Rupérez, Jaime; Torrijos-Morán, Luis; Gómez-Gómez, María Isabel; Martinez-Perez, Paula; Ponce-Alcántara, Salvador (SPIE, 2021-03-11)

[EN] Periodic photonic configurations as photonic crystals (PhCs) and subwavelength grating (SWG) waveguides are gaining a renewed interest for the development of biosensing structures. By performing a proper design, these ...
Optomechanic interaction in a corrugated phoxonic nanobeam cavity

Oudich, Mourad; El-Jalla, Said; Pennec, Yan; Djafari-Rouhani, Bahram; Gomis Bresco, Jordi; Navarro-Urrios, Daniel; Sotomayor Torres, Clivia M.; Martínez Abietar, Alejandro José; Makhoute, Abdelkader (American Physical Society, 2014-06-18)

[EN] The interaction between phonons and photons is investigated theoretically in a phoxonic cavity inside a corrugated nanobeam waveguide presenting band gaps for both electromagnetic and elastic waves. The structure is ...
Photonic Applications Based on Bimodal Interferometry in Periodic Integrated Waveguides

Torrijos Morán, Luis (Universitat Politècnica de València, 2021-09-02)

[ES] La fotónica de silicio es una tecnología emergente clave en redes de comunicación e interconexiones de centros de datos de nueva generación, entre otros. Su éxito se basa en la utilización de plataformas compatibles ...
Practical derivation of slot equivalent admittance in periodic waveguides

Valero-Nogueira, Alejandro; Herranz Herruzo, José Ignacio; Baquero Escudero, Mariano; Hernández-Murcia, Rafael; Rodrigo Peñarrocha, Vicent Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2013-04)

This communication describes a procedure for obtaining the equivalent-admittance representation of a slot in a waveguide. The approach is general, but it is particularly interesting for periodic waveguides, because it does ...