DONLL - Dinàmica no lineal, òptica no lineal i làsers
El grup de recerca treballa en dues temàtiques principals:
- L'estudi de fenòmens òptics lineals i no lineals en cristalls fotònics i microcavitats.
- L'estudi de la dinàmica espaciotemporal de sistemes no lineals, sobretot de làsers i sistemes òptics en general.
The research group works on two main topics: linear and nonlinear optical phenomena in photonic crystals and microcavities, and the spatiotemporal dynamics of nonlinear systems, in particular lasers and optical systems.
The research group works on two main topics: linear and nonlinear optical phenomena in photonic crystals and microcavities, and the spatiotemporal dynamics of nonlinear systems, in particular lasers and optical systems.
Col·leccions
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Articles de revista [199]
Enviaments recents
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Vertical Azimuth Display simulator for wind-Doppler lidar error assessment
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertThis works presents a simplified Vertical Azimuth Display (VAD) motion simulator for off-shore wind lidars. The simulator is rooted to the case of a conically-scanning lidar (e.g., the Zephyr lidar), where the wind speed ... -
Comparative analysis of ferroelectric domain statistics via nonlinear diffraction in random nonlinear materials
(2018-01-22)
Article
Accés obertWe present an indirect, non-destructive optical method for domain statistic characterization in disordered nonlinear crystals having homogeneous refractive index and spatially random distribution of ferroelectric domains. ... -
Stabilization of broad area semiconductor lasers
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2018)
Text en actes de congrés
Accés restringit per política de l'editorialBroad Area Semiconductor edge-emitting lasers typically display self-focusing nonlinearity due to the refractive index dependence on the population inversion. It induces the homogeneous solution instability, multi-transverse ... -
Directionality fields generated by a local Hilbert transform
(American Physical Society, 2018-03-15)
Article
Accés obertWe propose an approach based on a local Hilbert transform to design non-Hermitian potentials generating arbitrary vector fields of directionality, ¿p(¿r), with desired shapes and topologies. We derive a local Hilbert ... -
Persistence and stochastic periodicity in the intensity dynamics of a fiber laser during the transition to optical turbulence
(2018-02-27)
Article
Accés obertMany natural systems display transitions among different dynamical regimes, which are difficult to identify when the data are noisy and high dimensional. A technologically relevant example is a fiber laser, which can display ... -
Polarization-independent broadband bidirectional optical cloaking using a new type of inverse scattering approach
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertSince the advent of transformation optics a decade ago [1], the ability to achieve optical cloaking has become a matter of practical realization. However, so far extreme material requirements and large device areas have ... -
Are the spikes emitted by a semiconductor laser with feedback similar to neuronal spikes?
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialWe study experimentally a semiconductor laser operating in a feedback-induced regime known as low frequency fluctuations (LFFs), in which the laser emits a spiking output that resembles the spikes of biological neurons. ... -
Collective excitability in a mesoscopic neuronal model of epileptic activity
(2018-01-12)
Article
Accés obertAt the mesoscopic scale, the brain can be understood as a collection of interacting neuronal oscillators, but the extent to which its sustained activity is due to coupling among brain areas is still unclear. Herewe address ... -
A wind-lidar buoy for offshore wind measurements: first commissioning test-phase results
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Comunicació de congrés
Accés restringit per política de l'editorialThis paper presents the development of a new commercial floating lidar system aimed to measure the wind resource and other environmental variables at candidate wind farm locations. This work describes this new lidar system ... -
Generation of extreme pulses on demand in semiconductor lasers with optical injection
(2017-12-11)
Article
Accés obertThe generation of extreme intensity pulses in an optically injected semiconductor laser is studied numerically by using a well-known rate equation model. We show that step-up perturbations of the laser pump current can ... -
Monolithic CIGS-Perovskite tandem cell for optimal light harvesting without current matching
(2017-03-22)
Article
Accés obertWe present a novel monolithic architecture for optimal light harvesting in multijunction thin film solar cells. In the configuration we consider, formed by a perovskite (PVK) cell overlying a CIGS cell, the current extracted ... -
Nanoparticle assisted mechanical delamination for freestanding high performance organic devices
(2017-01-12)
Article
Accés obertOrganic electronics has the potential to be incorporated in any kind of surface morphology for wearable or fully portable applications. Unfortunately when organic devices, such as solar cells, are fabricated on flexible ...
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