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 [258]
Recent Submissions
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Methodology for lighting optimization applied to photocatalytic reactors
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Open AccessReplacement of conventional UV-lamps used in photocatalytic reactors by UV-LED sources with lower energy consumption and larger versatility has been proposed recently; However, the implementation of these types of sources ... -
Optically-thin broadband graphene-membrane photodetector
(2020-03-01)
Article
Open AccessA broadband graphene-on-Si3N4-membrane photodetector for the visible-IR spectral range is realised by simple lithography and deposition techniques. Photo-current is produced upon illumination due to presence of the build-in ... -
Characterizing signal encoding and transmission in class i and class II neurons via ordinal time-series analysis
(Institute of Physics (IOP), 2020-01-16)
Article
Restricted access - publisher's policyNeurons encode and transmit information in spike sequences. However, despite the effort devoted to understand the encoding and trans-mission of information, the mechanisms underlying the neuronal encoding are not yet fully ... -
Inferring the connectivity of coupled oscillators and anticipating their transition to synchrony through lag-time analysis
(2020-04-13)
Article
Restricted access - publisher's policyThe synchronization phenomenon is ubiquitous in nature. In ensembles ofcoupled oscillators, explosive synchronization is a particular type of transition tophase synchrony that is first-order as the coupling strength ... -
In situ decolorization monitoring of textile dyes for an optimized UV-LED/TiO2 reactor
(2019-08-01)
Article
Open AccessHeterogeneous photocatalysis, using photocatalysts in suspension to eliminate diverse contaminants, including textile wastewater, has several advantages. Nevertheless, current absorbance and decolorization measurements ... -
Performance analysis and methodology for replacing conventional lamps by optimized LED arrays for photocatalytic processes
(2020-04-01)
Article
Restricted access - publisher's policyOne of the main drawbacks of heterogeneous photocatalysis is the high consumption of electrical energy generated by conventional lamps. This study proposes a methodology to find the best distribution of light emitting ... -
Surface and bulk harmonic generation in the opaque region of GaAs
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
Conference lecture
Restricted access - publisher's policyWe demonstrate second and third harmonic generation from a GaAs substrate, well-bellow the absorption edge, in both transmission and reflection geometries. The pump is tuned at 1064 nm, in the transparency range, while the ... -
Mapping atmospheric waves and unveiling phase coherent structures in a global surface air temperature reanalysis dataset
(Institute of Physics (IOP), 2020-01-23)
Article
Restricted access - publisher's policyIn the analysis of empirical signals, detecting correlations that capture genuine interactions between the elements of a complex system is a challenging task with applications across disciplines. Here, we analyze a global ... -
Wavelet transform applied to internal defect detection by means of laser ultrasound
(2019-04-03)
Part of book or chapter of book
Open AccessLaser-generated ultrasound represents an interesting nondestructive testing technique that is being investigated in the last years as performative alternative to classical ultrasonic-based approaches. The greatest difficulty ... -
Brightness enhancement in Non-Hermintian VCSELs
(Optical Society of American (OSA), 2019)
Conference report
Restricted access - publisher's policyVertical Cavity Surface Emitting lasers (VCSELs) are compact and efficient light sources useful for a variety of applications. However, due to lack of a transverse mode control mechanism, such lasers suffer from poor spatial ... -
Non-Hermitian broad aperture semiconductor lasers based on PT-symmetry
(2019)
Conference report
Open AccessIn this paper we propose a novel configuration to regularize the complex spatiotemporal dynamics of broad area lasers into bright light beam. It has recently been shown that arbitrary non-Hermitian optical potentials based ... -
Defect reconstruction by non-destructive testing with laser induced ultrasonic detection
(2020-02)
Article
Restricted access - publisher's policyThis work envisages a detailed study of two-dimensional defect localization and reconstruction, using laser generated ultrasound and its application as a remotely controlled non-destructive testing method. As an alternative ...
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