Exploració per tema "Holography"

Ara es mostren els items 1-20 de 23

    • Back Focal Plane Interferometry for Holographic Optical Traps 

      Martínez Llinàs, Jade (Universitat Politècnica de Catalunya, 2011-03-10)
      Projecte Final de Màster Oficial
      Accés obert
      English: Since its invention in 1986, optical trapping as a tool to manipulate microparticles non-invasively has found many applications in physics and biology. Force measurement on biomaterials is a potential application ...

    • Beam steering accuracy in holographic optical tweezers 

      Català i Castro, Frederic (Universitat Politècnica de Catalunya, 2013-09-10)
      Projecte Final de Màster Oficial
      Accés obert
      [ANGLÈS] The use of spatial light modulators (SLMs) to achieve dynamic control of optical tweezers is observed to provide subnanometer precision in single trap positioning. However, some features concerning the digitalized ...

    • Design of new Near-Eye Display systems for AR and VR glasses 

      Cobos Concha, Adrià (Universitat Politècnica de Catalunya, 2022-07-21)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      Realitzat a/amb:   Inmersia Computers
      In this work, we introduce and develop a new Near-Eye Display (NED) AR/VR switching prototype based on Holographic Optical Elements (HOEs) and retinal projection. In comparison to the commercially available devices and the ...

    • Deterministic thermal lanscape engineering at the microscale level by optical beam shaping with phase-only hologram 

      Lebon, Alexander (Universitat Politècnica de Catalunya, 2018-09-06)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      An optical beam shaping system based on a phase-only spatial light modulator (SLM) was integrated into a holographic optical microscope developed to deliver heat locally and measure the resulting temperature in a label-free ...

    • Estudi de la viabilitat i negoci per a la introducció al mercat d'un disseny d'holograma econòmic per simular monitors de gimnasos 

      Fernández Valero, Álvaro (Universitat Politècnica de Catalunya, 2018-01-10)
      Treball Final de Grau
      Accés restringit per decisió de l'autor

    • Estudio de los parámetros del filtro Weiner en Near-Field Acoustic Holography 

      Escuder, Eva; Alba, Jesús; Ramis, Jaime (Universitat Politècnica de Catalunya, 2007)
      Article
      Accés obert
      Para estudiar el comportamiento acústico y vibratorio de una fuente sonora mediante imágenes reconstruidas con la técnica Near-Field Acoustic Holography (NAH) a partir de medidas experimentales de presión acústica, resulta ...

    • Generation of atmospheric wavefronts using binary micromirror arrays 

      Anzuola, Esdras; Belmonte Molina, Aniceto (2016-04-10)
      Article
      Accés obert
      To simulate in the laboratory the influence that a turbulent atmosphere has on light beams, we introduce a practical method for generating atmospheric wavefront distortions that considers digital holographic reconstruction ...

    • Highly stable holographic dumbbel combined with accurate force measurements through back-focal-plane interferometry 

      Marsa Samper, Ferran (Universitat Politècnica de Catalunya, 2011-09-08)
      Projecte Final de Màster Oficial
      Accés obert
      English: Optical trapping experiments with multiple traps have been used to measure small net movements on the nanometer range, but at present more stability is demanded to measure even smaller scales which are typical of ...

    • Hologramas multipresenciales en 3D con Kinect 

      Sánchez Sanabria, José Miguel (Universitat Politècnica de Catalunya, 2012-07-26)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      El dispositivo de Microsoft Kinect se utiliza normalmente para videojuegos (Xbox360) pero también se puede programar para darle una utilidad deseada según sus funciones. Esto se consigue con el SDK de Microsoft para Windows ...

    • Holographic shared experiences 

      Tortosa Ortiz-Villajos, Sergi (Universitat Politècnica de Catalunya, 2017-06)
      Treball Final de Grau
      Accés obert
      Con la aparición de las Hololens, el dispositivo de realidad mezclada de Microsoft, nace la posibilidad de aplicar esta tecnología en una gran variedad de áreas y tipos de proyectos. Para poder aprovechar el máximo esta ...

    • Imaging Nanometer Phase Coexistence at Defects During the Insulator−Metal Phase Transformation in VO2 Thin Films by Resonant Soft X‑ray Holography 

      Vidas, Luciana; Günther, Christian M.; Miller, Timothy A.; Pfau, Bastian; Perez-Salinas, Daniel; Martínez, Elías; Schneider, Michael; Guehers, Erik; Gargiani, Pierluigi; Valvidares, Manuel; Marvel, Robert E.; Hallman, Kent A.; Haglund, Richard F.; Eisebitt, Stefan; Wall, Simon (ACS, 2018-05-16)
      Article
      Accés obert
      We use resonant soft X-ray holography to image the insulator−metal phase transition in vanadium dioxide with element and polarization specificity and nanometer spatial resolution. We observe that nanoscale inhomogeneity ...

    • Measeurement of intermal strain/shape fields by means of holografy 

      Castro Abadía, Carlos (Universitat Politècnica de Catalunya / University of Aberdeen, 2009)
      Projecte/Treball Final de Carrera
      Accés obert
      The goal of the project is the verification of the evaluation method published by Dändliker. This includes the implementation of his Finite Difference Method as a computer program as well as the measurement of the surface ...

    • Measurement of holographic trap positioning 

      Domínguez Álvarez, Noemí (Universitat Politècnica de Catalunya, 2014-09-09)
      Projecte Final de Màster Oficial
      Accés obert
      [ANGLÈS] Dynamic control and precise optical trap positioning are possible with spatial light modulators in holographic optical tweezers. In this work, we deeply study the error induced in trap positioning by a mismatch ...

    • Multi mode fiber imaging for endoscopy applications 

      Maestre Morote, Marcos (Universitat Politècnica de Catalunya, 2019-07)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat

    • Multi-party holomeetings: toward a new era of low-cost volumetric holographic meetings in virtual reality 

      Fernández Langa, Sergi; Montagud Climent, Mario; Cernigliaro, Gianluca; Rincón Rivera, David (Institute of Electrical and Electronics Engineers (IEEE), 2022-08-09)
      Article
      Accés obert
      Fueled by advances in multi-party communications, increasingly mature immersive technologies being adopted, and the COVID-19 pandemic, a new wave of social virtual reality (VR) platforms have emerged to support socialization, ...

    • Optical techniques for information security 

      Matoba, Osamu; Nomura, Takanori; Pérez Cabré, Elisabet; Millán Garcia-Varela, M. Sagrario; Javidi, Bahram (2009-06)
      Article
      Accés restringit per política de l'editorial

    • Overview of 3D Video: Coding Algorithms, Implementations and Standardization 

      Berzosa Calpe, Ruben (Universitat Politècnica de Catalunya, 2011-09-09)
      Projecte/Treball Final de Carrera
      Accés obert
      English: 3D technologies have aroused a great interest over the world in the last years. Television, cinema and videogames are introducing, little by little, 3D technologies into the mass market. This comes as a result of ...

    • Phased array acousto-optic deflectors: enlarging the deflection range for multifrequency signals with applications in microscopy 

      Caus Regí, Jaume (Universitat Politècnica de Catalunya, 2023-07-12)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      Realitzat a/amb:   Universitat de Barcelona

    • Quantum holography with undetected light 

      Töpfer, Sebastian; Gilaberte Basset, Marta; Fuenzalida, Jorge; Steinlechner, Fabian; Pérez Torres, Juan; Gräfe, Markus (2022-01-14)
      Article
      Accés obert
      Holography exploits the interference of a light field reflected/transmitted from an object with a reference beam to obtain a reconstruction of the spatial shape of the object. Classical holography techniques have been very ...

    • Spatially variant polarized beams with tailored profiles 

      Maluenda Niubó, David (Universitat Politècnica de Catalunya, 2012-09-10)
      Projecte Final de Màster Oficial
      Accés obert
      [ANGLÈS] A new approach for the generation of spatially-variant polarized beams has been developed by manipulating vertical and horizontal field component of the optical signal individually in a Mach-Zehnder interferometric ...