Now showing items 1-20 of 40

    • A 461 nm laser system for an ultracold strontium quantum gas experiment 

      Estarellas Perales, Antonio (Universitat Politècnica de Catalunya, 2021-09-09)
      Master thesis
      Open Access
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
      In recent years, ultra-cold atomic gases have emerged as a novel platform for the study of quantum many-body systems. Exploiting these gases, it is possible to synthesize quantum matter of highly controllable properties ...
    • A fast imaging Mueller matrix polarimeter for biomedical applications 

      Rahman, Sheikh Fareya (Universitat Politècnica de Catalunya, 2022-09-07)
      Master thesis
      Open Access
      Covenantee:   Universitat Autònoma de Barcelona / Institut de Ciències Fotòniques (ICFO) / Karlsruher Institut für Technologie
      A Mueller Matrix Polarimeter is a device that measures the Mueller matrix of a sample, giving quantitative information on the change in the state of polarization light upon interaction with the sample. It measures the ...
    • Absorption spectroscopy with quantum light: experimental and theoretical simulations based on arbitrary spectral shapes generated with a programable filter 

      Padilla Camargo, Alejandra Araceli (Universitat Politècnica de Catalunya, 2023-09-06)
      Master thesis
      Open Access
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
      Absorption spectroscopy is a useful technique to detect the presence of specific elements in samples. However, its usefulness can be severely limited in certain frequency bands due to technological limitations, such as the ...
    • Applications of a quantum random number generator to simulations in condense matter physics 

      Guigó Corominas, Guillem (Universitat Politècnica de Catalunya, 2018-10-15)
      Master thesis
      Open Access
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
      We study the importance of the quality of random numbers in Monte Carlo simulations of 2D Ising systems. Simulations are carried out at critical temperature to find the dynamic scaling law of the linear relaxation time. ...
    • Automatic pattern detection on images for multiple-sensor calibration 

      Torras Estruch, Joan (Universitat Politècnica de Catalunya, 2021-09-10)
      Master thesis
      Restricted access - author's decision
      Covenantee:   Institut de Ciències Fotòniques (ICFO) / Universitat de Barcelona / Universitat Autònoma de Barcelona
      Sensor calibration can be done by identifying known points of interest of a calibration pattern into the intensity images captured with the sensor. If the same exact points are identified using multiple sensors, then ...
    • Building Plasmonic Crystals from Plasmonic Metamolecules 

      Medina Quiroz, David Enrique (Universitat Politècnica de Catalunya, 2021-09-09)
      Master thesis
      Open Access
      Covenantee:   Universitat de Barcelona / Universitat Autònoma de Barcelona / Institut de Ciències Fotòniques (ICFO)
      We present a theoretical and experimental analysis of the plasmon surface latticeresonances arising from gold nanoparticle assemblies. The metamolecules of the array arecomposed of colloidal gold nanoparticles and as the ...
    • Characterization and optimization of a multi-channel, FPGA-based Time-to-Digital Converter 

      Compte Prades, Joel (Universitat Politècnica de Catalunya, 2023-09-06)
      Master thesis
      Open Access
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
      High-resolution time measurement is a fundamental building block on a wide variety of applications such as time-of-flight based systems, single-photon microscopy and quantum communications. FPGA-based TDCs are the preferred ...
    • Characterization and phantom validation of a device for the bio-photonic imaging of the infant brain 

      Montesinos Jori, Alexia (Universitat Politècnica de Catalunya, 2023-01-23)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
    • Comparison of simulated and characterised optical performance in precision optical systems: simulation and analysis focus 

      Calvano, Lorenzo Joseph (Universitat Politècnica de Catalunya, 2023-09-08)
      Master thesis
      Restricted access - confidentiality agreement
      Covenantee:   Institut de Ciències Fotòniques (ICFO) / Universitat Autònoma de Barcelona
      To properly account for imperfections in fabrication of lenses and mechanics as well as optics alignment limitations, it is necessary to run a tolerance analysis during the optical design process. But it is often unclear ...
    • Contraction strategies of Tensor Networks for Quantum Circuit simulations 

      Orta Terré, Marina (Universitat Politècnica de Catalunya, 2021-09-30)
      Master thesis
      Open Access
      Covenantee:   Barcelona Supercomputing Center / Universitat de Barcelona / Universitat Autònoma de Barcelona / Institut de Ciències Fotòniques (ICFO)
      In the last years, the classical simulation of quantum systems is growing as a good approach to provide effcient approximations to quantum computers that are in the way of reaching quantum supremacy. An effcient way of ...
    • Design and optimization of Photonic Systems for Microwave Applications 

      Nuño Gómez, Daniel-Juan (Universitat Politècnica de Catalunya, 2017-09-07)
      Master thesis
      Open Access
      Covenantee:   Institut de Ciències Fotòniques (ICFO) / Universitat de Barcelona / Universitat Autònoma de Barcelona
      Extensively researched in the last years, the Microwave Photonics Technology field has a number of potential advantages including extremely wide bandwidth, very low frequency constant losses, light weight, immunity to EMI ...
    • Development of a fluorescence imaging system for a quantum gas experiment 

      Sanz Sánchez, Julio (Universitat Politècnica de Catalunya, 2015-09-10)
      Master thesis
      Open Access
      Covenantee:   Universitat Autònoma de Barcelona / Institut de Ciències Fotòniques (ICFO) / Universitat de Barcelona
      In this report we present a technique for imaging the momentum distribution of an ultracold atomic gas in 3D and with single atom resolution. We describe the first experimental steps taken to implement it in a quantum gas ...
    • Early detection of biofilms using low-cost polymeric optical Lab-on-a-chip 

      Antúnez Vallès, Bernat (Universitat Politècnica de Catalunya, 2015-09-09)
      Master thesis
      Open Access
      Covenantee:   Universitat Autònoma de Barcelona / Universitat de Barcelona / Institut de Ciències Fotòniques (ICFO)
      In surface colonization, microorganisms tend to form complex biological structures containing cells and adhesion molecules, called biofilms, which provide them with high stability and resistance to biocide compounds. These ...
    • Evaluation of the quality of Lidar measurements for foggy scenes 

      Rajendran, Neetu (Universitat Politècnica de Catalunya, 2021-09-10)
      Master thesis
      Restricted access - author's decision
      Covenantee:   Universitat de Barcelona / Universitat Autònoma de Barcelona / Institut de Ciències Fotòniques (ICFO)
      Light Detection and Ranging (LiDAR) is a remote sensing technology. The ability to perform 3D mapping of its surroundings with good resolution using Time of Flight (TOF) information made LiDAR a promising candidate for use ...
    • Experimental characterization of interacting pairs of chip-integrated optomechanical cavities 

      Alonso Tomás, David (Universitat Politècnica de Catalunya, 2023-07-10)
      Master thesis
      Restricted access - confidentiality agreement
      Covenantee:   Universitat de Barcelona / Institut de Ciències Fotòniques (ICFO)
    • Experimental control of high-dimensional entanglement for multicore fiber based QKD 

      Sánchez Blanca, Adrián (Universitat Politècnica de Catalunya, 2023-07-11)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
      Quantum Key Distribution (QKD) is a crucial step in quantum cryptography protocols, as a secure distribution of the secret key is determinant in the performance of the system. Some QKD protocols like E91 require the ...
    • Fast measurement of diffusing patterns and its parameterization 

      Turull Mallofré, Aina (Universitat Politècnica de Catalunya, 2016-09-08)
      Master thesis
      Open Access
      Covenantee:   Universitat de Barcelona / Universitat Autònoma de Barcelona / Institut de Ciències Fotòniques (ICFO)
      When light strikes on a diffuser surface a new energy redistribution is created. The diffusion patterns depends on the material of the diffuser and how light reach the diffuser. The aim of this project is to characterize ...
    • Influence of SnO2 layer and thickness of BiVO4 photoanodes for photoelectrochemical water splitting 

      Gerónimo Gómez, Laura (Universitat Politècnica de Catalunya, 2022-09-06)
      Master thesis
      Open Access
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
      Bismuth vanadate has attracted much attention as one of the most promising materials for photoelectrochemical (PEC) water splitting. This Master Thesis is aimed at understanding BiVO4 films growth to use it as photoanodes. ...
    • Non-invasive and fast molecular imaging of biological tissues by Raman spectroscopy 

      Ruiz González, José Javier (Universitat Politècnica de Catalunya, 2019-06)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Institut de Ciències Fotòniques (ICFO)
      Precise clinical diagnosis of skin tumours relies on biopsy and subsequent histopathologic examination, an invasive method which represents a difficult task for clinicians to decide when to biopsy or not. For this reason, ...
    • Object detection and tracking for thermal images 

      Estévez García, Armando (Universitat Politècnica de Catalunya, 2021-09-10)
      Master thesis
      Restricted access - confidentiality agreement
      Covenantee:   Institut de Ciències Fotòniques (ICFO) / Universitat de Barcelona / Universitat Autònoma de Barcelona