Browsing by Author "Artigas García, David"
Now showing items 1-20 of 66
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Angular control of anisotropy-induced bound states in the continuum
(2019-11-01)
Article
Open AccessRadiation of leaky modes existing in anisotropic waveguides can be cancelled by destructive interference at special propagation directions relative to the optical axis orientation, resulting in fully bound states surrounded ... -
Anisotropy-induced photonic bound states in the continuum
(Nature, 2017-03-20)
Article
Open AccessBound states in the continuum (BICs) are radiationless localized states embedded in the part of the parameter space that otherwise corresponds to radiative modes. Many decades after their original prediction1, 2, 3 and ... -
Asymmetrical splitting of higher-order optical solitons induced by quintic nonlinearity
(1997-11)
Article
Restricted access - publisher's policyWe address the effect of quintic nonlinearities in the propagation of optical solitons in cubic nonlinear media. Our focus is on the decay of higher-order solitons in the presence of self-defocusing quintic perturbations. ... -
Bound states in the continuum in anisotropic structures
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyWe report theoretical and experimental observation of radiationless bound states in the continuum (BIC) in waveguiding anisotropic structures. BICs may have all possible polarizations and be the only possible boundstates ... -
Campos electromagnéticos
(Edicions UPC, 1998)
Book
Restricted access to the UPC academic communityLa presente obra pretende proporcionar al estudiante una base sólida de conocimientos y conceptos de teoría electromagnética, que le permita acceder posteriormente a la comprensión de otros temas más avanzados, como los ... -
Campos electromagnéticos : problemas resueltos
(Edicions UPC, 2001)
Book
Restricted access to the UPC academic communityEste libro está orientado a los estudiantes de Ingeniería que se introducen con un cierto rigor en el estudio de las ondas electromagnéticas. Contiene una cuidada selección de problemas, dividida en seis capítulos, y ... -
Compact ultrafast semiconductor disk laser: targeting GFP based nonlinear applications in living organisms
(2011-03-01)
Article
Restricted access - publisher's policyWe present a portable ultrafast Semiconductor Disk Laser (SDL) (or vertical extended cavity surface emitting laser—VECSELs), to be used for nonlinear microscopy. The SDL is modelocked using a quantum-dot semiconductor ... -
Conformal transformation of Dyakonov surface waves into bound states of cylindrical metamaterials
(American Physical Society (APS), 2019-11-05)
Article
Open AccessWe put forward the use of transformation optics to map surface waves that exist as one-dimensional modes supported by anisotropic structures into bound states in two-dimensional geometries. Specifically, we show the conformal ... -
Continuous-wave self-pumped optical parametric oscillator based on Yb3+-doped bulk periodically-poled LiNbO3 (Mg0)
(2001-05-15)
Article
Restricted access - publisher's policyWe present experimental evidence of continuous-wave self-pumped parametric oscillation in Yb3+-doped periodically poled lithium niobate co-doped with MgO. A single bulk crystal of periodically poled lithium niobate containing ... -
Coupling plasmons and dyakonons
(2012-06-01)
Article
Restricted access - publisher's policyWe study the coupling of plasmons and Dyakonov surface waves propagating at the interfaces between isotropic-birefringent-metal layered structures. Efficient coupling is shown to occur with a proper choice of the crystal ... -
Decoupled illumination detection in light sheet microscopy for fast volumetric imaging
(OSA, 2015-08-04)
Article
Restricted access - publisher's policyCurrent microscopy demands the visualization of large three-dimensional samples with increased sensitivity, higher resolution, and faster speed. Several imaging techniques based on widefield, point-scanning, and light-sheet ... -
Decoupled illumination detection in light sheet microscopy for fast volumetric imaging
(Optical Society of American (OSA), 2015-08-04)
Article
Restricted access - publisher's policyCurrent microscopy demands the visualization of large threedimensional samples with increased sensitivity, higher resolution, and faster speed. Several imaging techniques based on widefield, point-scanning, and light-sheet ... -
Depth aberrations characterization in linear and nonlinear microscopy schemes using a Shack-Hartmann wavefront sensor
(2012)
Conference report
Restricted access - publisher's policyThe performance of imaging devices such as linear and nonlinear microscopes (NLM) can be limited by the optical properties of the imaged sample. Such an important aspect has already been described using theoretical models ... -
Dispersion-managed cnoidal pulse trains
(2003-08)
Article
Restricted access - publisher's policyWe report on the existence and properties of breathing periodic cnoidal pulse trains propagating in dispersion managed systems with piecewise constant dispersion. Our numerical investigations show that the dispersion ... -
Dyakonov surface wave resonant transmission
(2011-03-28)
Article
Restricted access - publisher's policyThe role of Dyakonov surface waves in the transmission through structures composed of birefringent media is theoretically explored. In the case of structures using prisms, unexpected high transmission above the critical ... -
Dyakonov surface waves
(2009)
Article
Restricted access - publisher's policy -
Dyakonov surface waves in photonic metamaterials
(2005-01)
Article
Restricted access - publisher's policyWe show that suitable photonic metamaterial structures can support lossless surface waves of the form envisaged by Dyakonov. The idea we put forward is based on the birefringent properties of photonic crystals in the ... -
Dynamic behaviour in a nonlinear directional coupler with feedback
(TAYLOR & FRANCIS LTD, 1997-06-30)
Article
Open AccessA new kind of resonator based on a nonlinear directional coupler with feedback is presented. The steady states are found and the map of the system is iterated, showing the existence of bistability, period doubling and ... -
Dynamics of quadratic soliton excitation
(1999-04)
Article
Restricted access - publisher's policyWe study the dynamics of the soliton–radiation interaction in the process of soliton excitation in quadratic nonlinear media. The focus is on the dynamics of initial signals that are not weakly perturbed exact solitons. ... -
Effect of molecular organization on the image histograms of polarization SHG microscopy
(2012)
Article
Open AccessBased on its polarization dependency, second harmonic generation (PSHG) microscopy has been proven capable to structurally characterize molecular architectures in different biological samples. By exploiting this polarization ...
