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Listar por palabra clave "Photonic crystals"

Mostrando ítems 1-12 de 12

Coupling techniques between dielectric waveguides and planar photonic crystals

Sanchis Kilders, Pablo (Universitat Politècnica de València, 2008-05-06)

El objetivo de esta tesis es la investigación de estructuras y técnicas de acoplo para minimizar las pérdidas de acoplo entre guías dieléctricas y cristales fotónicos planares. En primer lugar se ha estudiado el modelado ...
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. ...
Effect of loss on the dispersion relation of photonic and phononic crystals

Laude, Vincent; Escalante Fernández, José María; Martínez Abietar, Alejandro José (American Physical Society, 2013-12)

[EN] A theoretical analysis is made of the transformation of the dispersion relation of waves in artificial crystals under the influence of loss, including the case of photonic and phononic crystals. Considering a general ...
Electromagnetic absorption in anisotropic photonic crystal of alumina cylinders

Carbonell Olivares, Jorge; Sánchez-Dehesa Moreno-Cid, José; Arriaga, J.; Gumen, L.; Krokhin, A. (Elsevier, 2011)

[EN] We present a theoretical and experimental study of the effective permittivity of a photonic crystal (PC) made of parallel dielectric rods in the long-wavelength limit. Using the plane-wave expansion method we derive ...
Honeycomb Photonic Crystal Waveguides in a Suspended Silicon Slab

Puerto Garcia, Daniel; Griol Barres, Amadeu; Escalante Fernández, José María; Pennec, Yan; Djafari-Rouhani, Bahram; Beugnot, Jean-Charles; Laude, Vincent; Martínez Abietar, Alejandro José (Institute of Electrical and Electronics Engineers (IEEE), 2012-11-15)

[EN] We report experimental evidence of light guiding at telecommunication wavelengths along line-defect honeycomb-lattice photonic crystal waveguides created in suspended silicon slabs. Numerical results show that the ...
Light Guidance Aided by the Toroidal Dipole and the Magnetic Quadrupole in Silicon Slotted-Disk Chains

Díaz-Escobar, Evelyn; Barreda, Ángela I.; Mercadé, Laura; Griol Barres, Amadeu; Pitanti, Alessandro; Martínez, Alejandro (American Chemical Society, 2023-03-15)

[EN] Far-field scattering of high-index nanoparticles can be hugely reduced via interference of multipolar moments giving rise to the so-called anapole states. It has been suggested that this reduced scattering can contribute ...
Magnetophotonic Response of Three-Dimensional Opals

Caicedo, José Manuel; Pascu, Oana; López García, Martín; Canalejas, Victor; Blanco, Álvaro; López, Cefe; Fontcuberta, Josep; Roig, Anna; Herranz, Gervasi (American Chemical Society, 2011-04)

[EN] Three-dimensional magnetophotonic crystals (3D-MPCs) are being postulated as appropriate platforms to tailor the magneto-optical spectral response of magnetic materials and to incorporate this functionality in a new ...
Nonlocal electrodinamics of homogenized metal-dielectric photonic crystals

Konovalenko, Anatolii; Reyes-Avendaño, Jorge A.; Méndez-Blas, Antonio; Cervera Moreno, Francisco Salvador; Myslivets, Evgeny; Radic, Stojan; Sánchez-Dehesa Moreno-Cid, José; Pérez-Rodríguez, Felipe (IOP Publishing, 2019-08)

[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 ...
Optical and mechanical mode tuning in an optomechanical crystal with light-induced thermal effects

Navarro-Urrios, D.; Gomis-Bresco, J.; Capuj, N. E.; Alzina, F.; Griol Barres, Amadeu; Puerto Garcia, Daniel; Martínez Abietar, Alejandro José; Sotomayor-Torres, C. M. (American Institute of Physics (AIP), 2014-09-07)

[EN] We report on the modification of the optical and mechanical properties of a silicon 1D optomechanical crystal cavity due to thermo-optic effects in a high phonon/photon population regime. The cavity heats up due to ...
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 ...
Simultaneous existence of phononic and photonic band gaps in periodic crystal slabs

Pennec, Y.; Rouhani, B. Djafari; El Boudouti. E. H.; Li, C.; El Hassouani, Y.; Vasseur, J. O.; Papanikolaou, Nikos; Benchabane, Samir; Laude, Vincent; Martínez Abietar, Alejandro José (Optical Society of America: Open Access Journals, 2010-06-21)

[EN] We discuss the simultaneous existence of phononic and photonic band gaps in a periodic array of holes drilled in a Si membrane. We investigate in detail both the centered square lattice and the boron nitride (BN) ...
Slow light bimodal interferometry in one-dimensional photonic crystal waveguides

Torrijos-Morán, Luis; Griol Barres, Amadeu; García-Rupérez, Jaime (Nature Publishing Group, 2021-01-14)

[EN] Strongly influenced by the advances in the semiconductor industry, the miniaturization and integration of optical circuits into smaller devices has stimulated considerable research efforts in recent decades. Among ...