Departament de Física Aplicada: Recent submissions
Now showing items 1-20 of 22
Selective contacts for crystalline silicon solar cells
[eng] Global energy use has increased, causing a rapid shift in the climate. Renewable energy sources such as solar energy must replace fossil fuels to slow down this trend. In order to achieve this, the amount of power ...
Anàlisi i caracterització de la precipitació i dels camps de vents en zones d’orografia complexa: La Cerdanya (Pirineu Oriental)
[cat] Aquesta tesi, relacionada amb el projecte ATMOUNT (Análisis de las interacciones atmósfera-superficie en zonas de montaña y el conocimiento de los impactos del cambio global), i més concretament en el subprojecte ...
Classifying synthesized optical codes using polarimetric information and machine learning algorithms for optical security applications
[eng] Given the increasing use of the internet and the transfer of information in this era, it is crucial to focus on encryption and data security. According to the technological advances in optics and photonics and their ...
Precipitation phase discrimination: diagnosing and nowcasting
Precipitation phase discrimination at ground level constitutes a fundamental variable in many meteorological and hydrological applications, including avalanche hazards, winter road safety, and flooding from rain on snow ...
Tornadic events in the Iberian Peninsula and Balearic Islands: characteristics and environmental conditions
Tornadoes are the meteorological phenomenon which can produce the strongest surface wind on Earth, causing damage, injuries and fatalities. Several studies show that severe storm environments could be more frequent due to ...
Holographic light shaping through acousto-optic deflectors
The invention of the laser in the 1960s triggered a new era of optical technologies which revolutionized many fields of industry and research. At the same time, a new demand for technologies emerged that allow to dynamically ...
Cubiertas urbanas y comportamiento térmico en escenarios de temperaturas extremas: del dato al geoservicio
Las tendencias de los episodios de temperaturas extremas en las ciudades están aumentando (en frecuencia, magnitud y duración) debido al cambio climático en interacción con el efecto urbano. Otro factor relevante es que ...
Radar-based nowcasting of severe thunderstorms: A better understanding of the dynamical influence of complex topography and the sea
Natural disasters of hydro-meteorological origin are the biggest risk worldwide. In Catalonia (NE of the Iberian Peninsula), severe weather and flash floods occur each year, resulting in major damage to property, losses ...
Flood damage assessment in two western Mediterranean regions. Present conditions and future scenarios
Flooding is one of the main natural hazard in the world causing huge economic and human impacts. Assessing the flood damage in the Mediterranean region is of great importance, mainly due to its pronounced sensitivity to ...
Mathematical work on the foundation of Jones-Mueller formalism and its application to nano optics
Jones matrix and nondepolarizing Mueller matrix are the basic elements of the calculus of polarization optics. In this thesis we discus other forms that can be used to represent optical properties of deterministic systems. ...
Z-scan methods for ultrashort pulsed laser microprocessing of transparent materials
The use of femtosecond lasers has recently gained attention as a result of the recognition to Gérard Mourou and Donna Strickland with the award of the Nobel Prize in Physics 2018 "for their method of generating high-intensity, ...
Carbon nanotubes grown on stainless steel for supercapacitor applications
The ability of humans to study, manipulate and understand matter at the nanoscale has enabled us to develop materials that can combine physical, chemical, optical, magnetic and mechanical properties that bulk materials do ...
Precipitació i circulacions mesoescalars en zones d’orografia complexa
L’orografia té un impacte molt important en la circulació del vent i en la precipitació a totes les escales, des de la microescala fins a la macroescala. La complexitat i la singularitat de les interaccions entre el relleu ...
Implementation of the direct force measurement method in optical tweezers
Mechanics is the branch of physics that studies movement and force, and plays an evident role in life. The swimming dynamics of bacteria in search of nutrients, organelle transport by molecular motors or sensing different ...
Impacto de la asimilación radar en el pronóstico de precipitación a muy corto plazo usando el modelo WRF
El propósito de esta investigación es maximizar el impacto de la asimilación de datos radar sobre el pronóstico de precipitación a muy corto plazo usando el modelo Weather Research and Forecasting (WRF), de tal manera que ...
Precipitation measurements with polarimetric radio occultations
In 2009, the Spanish Ministry of Science and Innovation approved a proposal to modify the Global Positioning System (GPS) receiver and to allocate a Polarimetric (Pol) Radio Occultation (RO) antenna in the Spanish PAZ ...
A study of the shortwave schemes in the Weather Research and Forecasting model
The radiative transfer cannot be explicitly resolved in the atmospheric models for two reasons: i) a full treatment of the radiative transfer equation (RTE) requires a high amount of computational resources and ii) the ...
Investigation on force detection methods for optical trapping and sensing inside living cells
Optical Tweezers (OT) are a light-based non-invasive tool that has played an important role during the last decades in the field of biophotonics, together with the advances in optical microscopy techniques. Optical trapping ...
Laser direct-writing for microfabrication
Digital manufacturing constitutes a real industrial revolution that is transforming the production processes from the early stages of research and development to mass production and marketing. The biggest difference in ...
Growth Study and Characterization of Single Layer Graphene Structures Deposited on Copper Substrate by Chemical Vapor Deposition
Graphene was first isolated from graphite using the method called the tape by scientists at the University of Manchester (Andre Geim, Konstantin Novoselov); such work was later awarded the Nobel Prize in Physics (2010) ...
