Exploració per altres contribucions "Trull Silvestre, José Francisco"
Ara es mostren els items 1-20 de 23
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3d optical tomography of ferroelectric domains and domain walls
(Universitat Politècnica de Catalunya, 2022-09-07)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Kungliga Tekniska högskolanIn ferroelectric materials, the spontaneous polarization can be reversibly switched by an applied electric field, which makes them attractive for applications in non-volatile memories and other electro-active devices. ... -
Cell Magnetic tweezers for the study of mechanical interactions in Cells
(Universitat Politècnica de Catalunya, 2016-06-30)
Treball Final de Grau
Accés obert
Realitzat a/amb: King's College LondonIn this project, a cell Magnetic Tweezer (MT) set-up was assembled and calibrated, aimed at the study of mechanical interactions in single cells. The set-up is able to apply forces of ranging from 0.2 to 0.5 nN and is ... -
Conservation of orbital angular momentum in crystals with a random domain distribution of nonlinearity in SHG
(Universitat Politècnica de Catalunya, 2016-09-07)
Projecte Final de Màster Oficial
Accés obertIn this master thesis we build an experimental setup for studying the conservation of the orbital angular momentum (OAM) of light in second harmonic generation (SHG) in Strontium Barium Niobate (SBN) crystals with random ... -
Development of a control and monitoring system for an ultra-short pulse autocorrelator
(Universitat Politècnica de Catalunya, 2022-06-26)
Treball Final de Grau
Accés obertThis project is devoted to the study and implementation of single-shot characterization method of ultrashort laser pulses using second- harmonic generation in nonlinear ferroelectric crystals. The main objective is ... -
Development of a scalable, point-of-care and label free microarray platform for rapid detection of sepsis
(Universitat Politècnica de Catalunya, 2015-06-29)
Treball Final de Grau
Accés restringit per acord de confidencialitat -
Enhancement of absorption and nonlinearities in nanostructures and metamaterials
(Universitat Politècnica de Catalunya, 2019-06-26)
Treball Final de Grau
Accés obertHumans have lived hand in hand with light since the beginning of time. The more the knowledge and technology advances, the more discoveries and applications involving electromagnetic waves are found and created. This thesis ... -
Estudio de un nuevo método de caracterización de un haz láser de potencia basado en la implementación de fibra óptica
(Universitat Politècnica de Catalunya, 2020-11-25)
Projecte Final de Màster Oficial
Accés obert -
Evaluation of the LIPP method for determining the space charge profile in poled dielectrics
(Universitat Politècnica de Catalunya, 2013-12-11)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] The determination of the charge profile in corona-poled or electrode-poled samples is a key step in many dielectric studies. The purpose of this work is to evaluate the feasibility of developing a laser induced ... -
Intracavity spatial filtering in broad area semiconductor laser
(Universitat Politècnica de Catalunya, 2020-12-17)
Tesi
Accés obertSemiconductor lasers in high-power regime typically manifest a poor beam quality due to its asymmetric beam divergence and its large beam quality factor (M2). The emission along one of the transverse directions (slow axis) ... -
Nonlinear frequency conversion in strategic materials for nanophotonics
(Universitat Politècnica de Catalunya, 2021-09-09)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat
Realitzat a/amb: Karlsruher Institut für TechnologieThis project aims to contribute to two important research areas in Photonics: nonlinear optics and sub-wavelength nano-structured optical materials (nanomaterials). These inter-connected fields have major applications in ... -
Nonlinear frequency conversion under general phase mismatched condition: the role of phase locking and random nonlinear domains
(Universitat Politècnica de Catalunya, 2011-06-15)
Tesi
Accés obertIn the field of second harmonic (SH) generation most studies have been concerned with maximizing conversion efficiencies, generally achievable at the phase matching (PM) condition. Outside of the PM the conversion efficiency ... -
Nonlinear optics at nanoscale: frequency conversion at interfaces
(Universitat Politècnica de Catalunya, 2023-06-19)
Tesi
Accés obert(English) The use of semiconductors, metals, or ordinary dielectrics in the process of fabrication of nanodevices is at the front edge of nowadays technology. In the last decade an impressive technological progress has ... -
On the Attitude Control by Thruster of a Spinning Solar Sail and Bending Moment's Effect Analysis
(Universitat Politècnica de Catalunya, 2019-05-29)
Treball Final de Grau
Accés obert
Realitzat a/amb: Japan Aerospace Exploration AgencyThe membrane dynamics of spinning solar sails have a special relevance when considering attitude control of the spacecraft. Because of being non-rigid structures, local deformation occurs, changing the overall effect of ... -
Optoelectronic optimization of photocatalytic processes for wastewater treatment
(Universitat Politècnica de Catalunya, 2019-10-03)
Tesi
Accés obertWater pollution is an alarming problem that endangers the health of all living beings. The textile industry is listed as one of the most contaminating industries, since in order to carry out its dyeing and finishing ... -
Quantum corrections in nanoplasmonics & deep neural network training with reverse supervision
(Universitat Politècnica de Catalunya, 2018-05)
Treball Final de Grau
Accés obert
Realitzat a/amb: Massachusetts Institute of TechnologyThe classical theory of plasmonics fails dramatically at geometric length scales below 30 nm, due to quantum phenomena like electronic spill-out of the wave function, nonlocality and Landau damping. An alternative to the ... -
Quantum random number generation based on the polarization dynamics of VCSELs
(Universitat Politècnica de Catalunya, 2022-06)
Treball Final de Grau
Accés restringit per acord de confidencialitat
Realitzat a/amb: QusideRandom numbers are essential in a great variety of applications ranging from stochastic simulations to secure communications. In this thesis, we report a technique for quantum random number generation based on the dynamics ... -
Second harmonic generation in disordered nonlinear crystals : application to ultra-short laser pulse characterization
(Universitat Politècnica de Catalunya, 2017-10-10)
Tesi
Accés obert
Realitzat a/amb: Aix-Marseille UniversitéThe PhD project, entitled "Second harmonic generation in disordered nonlinear crystals: application to ultra-short laser pulse characterization", is devoted to the study of second harmonic generation in nonlinear ferroelectric ... -
Study of the enhancement of absorption in photonic nanostructures
(Universitat Politècnica de Catalunya, 2022-09-09)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat -
Study of the wavelength dependent light localization in 3D chirped photonic structures
(Universitat Politècnica de Catalunya, 2023-07-11)
Treball Final de Grau
Accés restringit per acord de confidencialitatOptical properties of photonic crystals have emerged as being pivotal in the field of nanophotonics. Their artificial periodicity can alter and create new effective dispersion relations compared to bulk materials, allowing ... -
Surface and bulk harmonic generation in the opaque region of GaAs
(Universitat Politècnica de Catalunya, 2018-09-06)
Projecte Final de Màster Oficial
Accés obertWe demonstrate second and third harmonic generation from a GaAs substrate, far from the phase matching and well-below the absorption edge, in both transmission and reflection geometries. The pump is tuned in the transparency ...