Samaniego-Riera, Diego; Zoireff, Gustavo; Vidal Rodriguez, Borja(Institute of Electrical and Electronics Engineers, 2021-04-01)
[EN] A nonlinear method to generate and control both the type and magnitude of the birefringence, as well as differential group delay (DGD) in optical fibers is studied. Experiments show that both parameters of birefringence ...
Puerto Garcia, Daniel; Siegel, Jan; Ferrer, Andres; Hernandez-Rueda, Javier; Solis, Javier(Optical Society of America, 2012-10)
[EN] A study of the surface modification induced by single femtosecond laser pulses in phosphate glass has revealed surface swelling at fluences just below the ablation threshold. This behavior is different from that ...
Mena Ortega, Sergio(Universitat Politècnica de València, 2021-03-25)
[ES] Existen diferentes tipos de biosensores basados en fibra óptica. En este trabajo vamos a centrarnos
en biosensores de fibra óptica ahusada en los que se modifica la estructura de la fibra. De
esta manera se produce ...
Domingo Beltran, Manuel; Luna Molina, Ramón; Satorre, M. Á.; Santonja Moltó, Mª del Carmen; Millán Verdú, Carlos(MDPI, 2015-10)
The use of thin films is extensive in both science and industry. We have created
an experimental system that allows us to measure the thicknesses of thin films (with typical
thicknesses of around 1 μm) in real time ...
Navarro-Cia, M.; García Meca, Carlos; Beruete, M.; Martínez Abietar, Alejandro José; Sorolla, M.(Optical Society of America, 2011)
[EN] An effective negative refractive index (NRI) is demonstrated and experimentally verified for the first two propagation bands of a fishnet-like metamaterial at millimeter-wave frequencies. The dual-band NRI behavior ...
Domingo Beltran, Manuel; Luna Molina, Ramón; Satorre, M. Á.; Santonja Moltó, Mª del Carmen; Millán Verdú, Carlos(Springer-Verlag, 2015)
[EN] We have experimentally determined the polarizability of using the Lorentz-Lorenz equation by simultaneously measuring the density and the refractive index. The conditions were solid phase, mbar pressure, and temperature ...
Rodríguez Fortuño, Francisco José; Martínez Marco, Mª Luz; Tomás Navarro, Begoña; Ortuño Molinero, Rubén; Martí Sendra, Javier; Martínez Abietar, Alejandro José; Rodríguez Cantó, Pedro Javier(American Institute of Physics, 2011)
In this work, we report the design, fabrication, and characterization of gold nanocrosses for chemosensing purposes. The nanocrosses are designed to exhibit a localized surface plasmon resonance which is very sensitive to ...
Xifre Perez, Elisabet; Fenollosa Esteve, Roberto; Meseguer Rico, Francisco Javier(Optical Society of America, 2011-02-14)
[EN] Silicon colloids based microcavities, with sphere size between 1 and 3 micrometers, have been synthesized and optically characterized. Due to both the small cavity volume and the high refractive index of silicon we ...
We experimentally demonstrate a low-loss multilayered metamaterial exhibiting a double-negative refractive index in the visible spectral range. To this end, we exploit a second-order magnetic resonance of the so-called ...
Adrián Martínez, Silvia; Al Samarai, I; Albert, A.; André, A; Anghinolfi, M.; Anton, G; Anvar, S.; Ardid Ramírez, Miguel; Bou Cabo, Manuel; Camarena Femenia, Francisco; Ferri García, Marcelino; Larosa, Giuseppina; Martínez Mora, Juan Antonio(Elsevier, 2012-04)
The group velocity of light has been measured at eight different wavelengths between 385 nm and 532 nm in the Mediterranean Sea at a depth of about 2.2 km with the ANTARES optical beacon systems. A parametrisation of the ...
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 ...
[EN] We have recently demonstrated a biosensor based on a lattice of SU8 pillars on a 1 ¿m SiO 2/Si wafer by measuring vertically reflectivity as a function of wavelength. The biodetection has been proven with the combination ...
Perczel, Janos; García Meca, Carlos; Leonhardt, Ulf(IOP Publishing, 2011-07)
Some interesting optical instruments such as the Eaton lens and the invisible sphere require singularities of the refractive index for their implementation. We show how to transmute those singularities into harmless ...
Madrigal-Madrigal, Javier; Barrera Vilar, David; Sales Maicas, Salvador(Institute of Electrical and Electronics Engineers, 2019-09-15)
[EN] Multicore optical fibers are of great interest in the optical sensing field. Their core diversity and spatial distribution enable the development of sensing mechanisms that are not possible in single-core fibers. In ...
[EN] Shaping silicon as a spherical object is not an obvious task, especially when the object size is in the micrometer range. This has the important consequence of transforming bare silicon material in a microcavity, so ...
Vilaplana Cerda, Rosario Isabel; Luna Molina, Ramón; Guirado, D.(Elsevier, 2011)
[EN] In order to identify the type of scattering profile that corresponds to some specific shapes, we have performed calculations of some scattering properties for those shapes with a fixed size distribution. Aggregates ...
García-Cortijo, Sergi; Gasulla Mestre, Ivana(Institute of Electrical and Electronics Engineers, 2020-08)
[EN] Optical fibers featuring multi-layer refractive index profiles have been widely investigated and developed in a variety of scenarios, including space-division multiplexing transmission, fiber sensing, loss and dispersion ...