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.
Collections in this community
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Articles de revista [284]
Recent Submissions
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Inverse-design of non-Hermitian potentials for on-demand asymmetric reflectivity
(2021-05-24)
Article
Open AccessWe propose a genetic algorithm-assisted inverse design approach to achieve ‘ondemand’ light transport in periodic and non-periodic planar structures containing dielectric and gain-loss layers. The optimization algorithm ... -
Domain statistics analysis of random nonlinear crystals via second harmonic generation
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyWe demonstrate an indirect non-destructive optical method for the characterization of ferroelectric domain size and distribution based on the analysis of the generated second harmonic spatial distribution. This method is ... -
Fast and effective pseudo transfer entropy for bivariate data-driven causal inference
(Nature, 2021-04-19)
Article
Open AccessIdentifying, from time series analysis, reliable indicators of causal relationships is essential for many disciplines. Main challenges are distinguishing correlation from causality and discriminating between direct and ... -
Harmonic generation at the nanoscale in strategic materials for nanophotonics
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Conference report
Restricted access - publisher's policyThe use of semiconductors, metals and conductive oxides in the process of fabrication of actual nano devices is at the front edge of nowadays technology, exploiting the properties of light propagation and localization at ... -
Harmonic generation from gold nanolayers: bound and hot electron contributions
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Conference report
Restricted access - publisher's policyCurrently, nanostructures are routinely fabricated and integrated in different photonic devices for a variety of purposes and applications. For instance, in order to engineer properly nano-antennas or filters, it is important ... -
Nonspreading Light Pulses in Photonic Crystals
(2005-05)
External research report
Open AccessWe investigate propagation of light pulses in photonic crystals in the vicinity of the zero-diffraction point. We show that Gaussian pulses due to nonzero width of their spectrum spread weakly in space and time during the ... -
About the oscillatory possibilities of the dynamical systems
(2009-11)
External research report
Open AccessThis paper may be ultimately described as an attempt to make feasible the evolutionary emergence of novelty in a supposedly deterministic world whose behavior is associated with that of the mathematical dynamical systems. ... -
Unphysical source of dynamic order for the natural world
(2016-10)
External research report
Open AccessThe well-defined but intricate course of time evolution exhibited by many naturally occurring phenomena suggests some source of dynamic order sustaining it. In spite of its obviousness as a problem, it has remained absent ... -
Spatiotemporal stabilization proof of concept of Broad Area Semiconductor laser sources
(2018-02)
External research report
Open AccessWe provide a numerical proof of concept of a stabilization mechanism for BAS laser sources. The scheme is based on the simultaneous introduction of in-phase two-dimensional modulations on the refractive index and pump ... -
Nanostructured multilayer coatings for spatial filtering
(2021-03-16)
Article
Restricted access - publisher's policySpatial filtering is an important mechanism to improve the spatial quality of laser beams. Typically, a confocal arrangement of lenses with a diaphragm in the focal plane is used for intracavity spatial filtering. Such ... -
Influence of Madden–Julian Oscillation on extreme rainfall events in Spring in southern Uruguay
(2021-04-01)
Article
Restricted access - publisher's policyThe influence of Madden–Julian Oscillation (MJO) on the dynamics ofextreme rainfall events during austral Spring in Uruguay is investigated. Theresearch is focused on the southern region of the country, which includes15 ... -
Sound directivity by PT-symmetric acoustic dipoles
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Conference report
Open AccessThe new physics of open-dissipative, non-Hermitian systems have become a fruitful playground to uncover novel physical phenomena, even in exotic or counterintuitive ways, especially in optics and, more recently, also in ...
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