Browsing by Contributor "Trull Silvestre, José Francisco"
Now showing items 1-19 of 19
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Cell Magnetic tweezers for the study of mechanical interactions in Cells
(Universitat Politècnica de Catalunya, 2016-06-30)
Bachelor thesis
Open Access
Covenantee: 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)
Master thesis
Open AccessIn 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)
Bachelor thesis
Open AccessThis 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)
Bachelor thesis
Restricted access - confidentiality agreement -
Enhancement of absorption and nonlinearities in nanostructures and metamaterials
(Universitat Politècnica de Catalunya, 2019-06-26)
Bachelor thesis
Open AccessHumans 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)
Master thesis
Open Access -
Evaluation of the LIPP method for determining the space charge profile in poled dielectrics
(Universitat Politècnica de Catalunya, 2013-12-11)
Master thesis
Open Access[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)
Doctoral thesis
Open AccessSemiconductor 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 under general phase mismatched condition: the role of phase locking and random nonlinear domains
(Universitat Politècnica de Catalunya, 2011-06-15)
Doctoral thesis
Open AccessIn 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 ... -
On the Attitude Control by Thruster of a Spinning Solar Sail and Bending Moment's Effect Analysis
(Universitat Politècnica de Catalunya, 2019-05-29)
Bachelor thesis
Open Access
Covenantee: 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)
Doctoral thesis
Open AccessWater 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)
Bachelor thesis
Open Access
Covenantee: 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)
Bachelor thesis
Restricted access - confidentiality agreement
Covenantee: 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)
Doctoral thesis
Open Access
Covenantee: 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)
Master thesis
Restricted access - confidentiality agreement -
Surface and bulk harmonic generation in the opaque region of GaAs
(Universitat Politècnica de Catalunya, 2018-09-06)
Master thesis
Open AccessWe 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 ... -
The nonlinear optics of first-order phase transitions
(Universitat Politècnica de Catalunya, 2022-08-30)
Master thesis
Open Access
Covenantee: Institut de Ciències Fotòniques (ICFO) / Universitat Autònoma de Barcelona / Universitat de BarcelonaNonlinear effects are used to specially broaden the spectrum by the interaction with a material at high intensities. Here we study nonlinear effects in a light induced first-order phase transition of a thin layer of VO2. ... -
Ultra short laser pulse characterization device based on disordered nonlinear crystals
(Universitat Politècnica de Catalunya, 2017-10-27)
Master thesis
Open Access
Covenantee: Institut de Ciències Fotòniques (ICFO) / Universitat de Barcelona / Universitat Autònoma de BarcelonaIn this project we build and test a compact and portable optical device for ultrashort pulse characterization. This setup allows the measurement of the pulse duration as well as its chirp parameter by using the so called ... -
Ultra-short pulse characterization, a new in-situ approach using disordered nonlinear crystals
(Universitat Politècnica de Catalunya, 2014-09-10)
Master thesis
Open Access[ANGLÈS] A new single-shot assembly for ultra-short laser pulse characterization using ferroelectric crystals with inverted randomly distributed nonlinear domains is studied in detail. The second harmonic autocorrelation ...
