Prof.
Ramon Vilaseca
(Universitat Politecnica de Catalunya (UPC))
19/07/2017, 15:15
Quantum and Non-linear Optics
Oral parallel contribution
We show a method to experimentally characterize the any 2D random distribution of ferroelectric domains in a nonlinear crystal such as SBN, which is difficult to observe by other methods. It is based on second harmonic diffraction of light pulses and it allows us to determine the domain size distribution. Comparison with simulation results shows good agreement. It has also been used to...
Prof.
María del Mar Sánchez López
(Universidad Miguel Hernández)
19/07/2017, 15:35
Quantum and Non-linear Optics
Oral parallel contribution
Los haces de luz vectoriales, con un patrón de polarización no uniforme en su sección, están recibiendo mucha atención debido a sus interesantes aplicaciones. Estos haces pueden generarse mediante las denominadas láminas-q, retardadores lineales cuyo eje óptico rota una fracción q del ángulo azimutal. En esta comunicación revisamos los trabajos recientes de nuestro grupo en la generación de...
Mr.
Márcio Bruno Da Silva Matos Carvalho
(Universidad Politécnica de Madrid)
19/07/2017, 15:55
Quantum and Non-linear Optics
Oral parallel contribution
Bessel vortex beams (BVBs) are vorticity-carrying nonlinear Bessel modes, propagation-invariant solutions of the nonlinear Schödinger equation with Kerr and multiphoton absorption (MPA) nonlinearities. As for the fundamental nonlinear Bessel beam case, their stationarity is supported by a power reservoir mechanism, which arises from its weak localization. In this work it is demonstrated how...
Dr.
Antonio Picón
(Universidad de Salamanca)
19/07/2017, 16:15
Quantum and Non-linear Optics
Oral parallel contribution
High-order harmonic generation (HHG) is a remarkable process resulting from the interaction of physical systems with intense electromagnetic radiation. The generation of high-order harmonics is well-established in atomic and molecular gases. However, much progress have been done towards HHG in solids since the first experimental observation. HHG from solids has burgeoned a great interest,...
Dr.
Angel Paredes Galan
(Universidade de Vigo)
19/07/2017, 16:35
Quantum and Non-linear Optics
Oral parallel contribution
We point out formal connections between the astrophysical dynamics of dark matter and the propagation of laser beams in thermooptical media. This paves the way for the design of experiments with dark matter analogs and for cross-fertilization between these two fields.
Mr.
Gerard Queraltó Isach
(Universitat Autònoma de Barcelona)
19/07/2017, 17:25
Quantum and Non-linear Optics
Oral parallel contribution
Integrated optical devices exhibiting both high fidelity and high speed transmission are expected to foster novel communication platforms paving the way for scalable photonic quantum technologies. Moreover, the emerging technology of Space-Division Multiplexing [1] has recently attracted a lot of attention due to the increasing demand of high-capacity optical transmissions and the proximity of...
Mr.
Manuel Gómez
(CIQUS, Center for Research in Biological Chemistry and Molecular Materials, Santiago de Compostela University, 15782, Santiago de Compostela, Galicia, Spain)
19/07/2017, 17:45
Quantum and Non-linear Optics
Oral parallel contribution
Introduction
Conservation and restoration of works of art face many problems caused by degradation of bulk materials, varnishes, binding media and dyes. Identification and characterization of these degradation products has always been of high importance because it is the first step to develop and apply the appropriate treatments to preserve our cultural heritage.
The concern is more acute...
Prof.
Eugenio Roldán Serrano
(Universitat de València)
19/07/2017, 18:05
Quantum and Non-linear Optics
Oral parallel contribution
We study Leggett-Garg inequalities and no-signaling in time to determine the macrorealistic character of light polarization. In particular we present a model based on photon extraction. We show that violations of macrorealism occur for sufficietly invasive measurements, while for sufficiently coarse-grained measurements violations vanish.
Dr.
Irina Lebedeva
(Universidad del País Vasco)
19/07/2017, 18:25
Quantum and Non-linear Optics
Oral parallel contribution
Though the perturbation theory has been successfully used to describe various types of responses of molecules to electromagnetic fields for a long time, the extension of this theory to solids is not straightforward since the position operator is ill defined for such systems. The theoretical description of
magnetic fields in periodic systems is particularly challenging as it leads to...
