Now showing items 41-60 of 62

    • Optical correlation with variable discrimination capability: experimental results 

      Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet; Kotynski, Rafal; Chalasinska-Macukow, Katarzyna (2000)
      Article
      Open Access
    • Optimisation of parametric processes in nonlinear optical waveguides 

      Bohigas Nadal, Jaume (Universitat Politècnica de Catalunya / Politecnico di Torino. Dipartimento di elettronica / Technical University of Denmark. Fotonik Department, 2013-09-10)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Politecnico di Torino
      [ANGLÈS] This Master’s Thesis presents an optimisation of parametric processes on two different materials used for optical communications. The main objective is to determine whether they are suitable for all-optical signal ...
    • Optoelectronic properties of CuPc thin films deposited at different substrate temperatures 

      Pirriera, Della M; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Stella, M; Bertomeu Balaguero, Joan; Alcubilla González, Ramón (Institute of Physics (IOP), 2009-07)
      Article
      Restricted access - publisher's policy
      Structural and optical characterization of copper phthalocyanine thin film thermally deposited at different substrate temperatures was the aim of this work. The morphology of the films shows strong dependence on temperature, ...
    • Optoelectrónica, fotónica y sensores 

      Silvestre Bergés, Santiago (European Virtual Learning Platform for Electrical and Information Engineering, 2016-11-04)
      Book
      Open Access
      Curso de introducción a la optoelectrónica. En los primeros capítulos se introducen los conceptos básicos sobre la transmisión de la luz. Seguidamente, los mecanismos físicos relacionados con dispositivos optoelectrónicos ...
    • Optoelektronik, Photonik und Sensoren 

      Silvestre Bergés, Santiago (European Virtual Learning Platform for Electrical and Information Engineering, 2017-08-01)
      Book
      Open Access
      Dieser Kurs stellt eine Einführung in das Gebiet der Optoelektronik dar. In den Einleitungskapiteln werden die grundlegenden Begriffe vorgestellt, die die Lichttransmission betreffen. Die physikalischen Mechanismen, die ...
    • Optoelektronika, fotonika a senzory 

      Silvestre Bergés, Santiago (TechPedia, 2016-10-27)
      Book
      Open Access
      Tento kurz uvádí studenta do problematiky optoelektroniky. V úvodních kapitolách jsou predstaveny základní pojmy týkající se prenosu optického zárení. Fyzikální mechanismy vztahující se k problematice optoelektronických ...
    • OSPF-TE extensions for green routing in optical networks 

      Wang, Jiayuan; Ricciardi, Sergio; Manolova Vasileva, Anna; Ruepp, Sarah; Careglio, Davide; Dittmann, L. (2012)
      Conference report
      Restricted access - publisher's policy
      This paper proposes extensions to the OSPF-TE protocol to enable green routing in GMPLS-controlled optical networks. Simulation results show a remarkable reduction in CO 2 emissions by preferring network elements ...
    • Performance analysis of atmospheric field conjugation adaptive arrays 

      Belmonte Molina, Aniceto; Kahn, Joseph M. (Hamid Hemmati, 2011)
      Conference report
      Open Access
      System configurations based on single monolithic-apertures that are immune to atmospheric fluctuations are being developed. Main goal is the improvement of the performance achievable in coherent, free-space optical ...
    • Performance of coherent lidar receivers using atmospheric compensation techniques 

      Belmonte Molina, Aniceto (Météo-France, 2009)
      Conference report
      Open Access
    • Performance of synchronous or nonsynchronous receivers using atmospheric compensation techniques 

      Belmonte Molina, Aniceto; Joseph, M Kahn (The Optical Society of America, Washington, DC, 2008)
      Conference report
      Open Access
    • Photoconductivity in High-Quality Graphene 

      Davydovskaya, Diana (Universitat Politècnica de Catalunya, 2015-09-08)
      Master thesis
      Open Access
      Graphene is a relatively new material with unique properties that found application in the field of electronics and optoelectronics. A broadband absorption makes it especially interesting for photodetection applications. ...
    • Plasmonically enhanced light absorption in graphene nanoribbons 

      Woessner, Achim (Universitat Politècnica de Catalunya, 2012-09-06)
      Master thesis
      Open Access
      [ANGLÈS] Light absorption plays a crucial role in both optical detectors and photovoltaics. In order to improve the light absorption properties of materials different measures can be taken. This thesis considers light ...
    • Predistortion Transmitters for Orthogonal Frequency Division Multiplexing Passive Optical Networks 

      Liebana Buxó, Mireia (Universitat Politècnica de Catalunya, 2013-05-15)
      Master thesis
      Open Access
      The aim of this work is to offer different alternatives for an OFDM PON networks, studying and analyzing many systems with their pros and cons and proposing news schematics for a multiuser scenario for the uplink. The ...
    • Properties of quadratic multi-soliton generation near phase-match in PPKTP 

      Polyakov, S; Jankovic, L; Kim, H; Stegeman, G; Carrasco Rodríguez, Sílvia; Torner Sabata, Lluís; Katz, M (2003-06)
      Article
      Restricted access - publisher's policy
      The properties of the multi-quadratic-soliton generation process have been investigated both theoretically and experimentally near and on phase-match in non-critically-phase-matched, periodically poled, potassium titanyl ...
    • Puentes, Hermosa, and Torres reply 

      Puentes, Graciana; Hermosa, Nathaniel; Pérez Torres, Juan (2013-07-10)
      Article
      Open Access
      A Reply to the Comment by A. K. Pan and P. K. Panigrahi.
    • Silicon photomultiplier for atmospheric lidar applications 

      Riu Gras, Jordi; Sicard, Michaël; Royo Royo, Santiago; Comerón Tejero, Adolfo (2012-01-31)
      Article
      Open Access
      The viability and performance of using a silicon photomultiplier (SiPM) in atmospheric lidar applications is experimentally compared against the well-established use of photomultiplier tubes. By using a modified lidar setup ...
    • Sistema òptic autònom per la mesura de paràmetres biomèdics 

      Ventosinos Alonso, Santiago (Universitat Politècnica de Catalunya, 2010-04-28)
      Bachelor thesis
      Open Access
    • Solution processable white organic light emitting diodes 

      Malinkiewicz, Olga (Universitat Politècnica de Catalunya, 2011-10-24)
      Master thesis
      Open Access
      English: We demonstrate a novel technique for fabricating fully solution processed white OLEDs. For the first time we have used Atomic Layer Deposition (ALD) technique to create ultra thin films of Al2O3 oxide between ...
    • Study of a thiophene-based polymer for optoelectronic applicartions 

      Cheylan, Stephanie; Fraleoni-Morgera, A; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; Settin, L; Alcubilla González, Ramón; Badenes, G; Costa-Bizzarri, P; Lanzi, M (2006-01)
      Article
      Restricted access - publisher's policy
      A thiophene-based conjugated polymer bearing a cyano group (–CN) as a side chain substituent was successfully synthesized. The polymer evidences an excellent filmability from various organic solvents as well as an enhanced ...
    • Tunable beam displacer 

      Salazar Serrano, Luis Jose; Valencia, Alejandra; Pérez Torres, Juan (2015-03-17)
      Article
      Open Access
      We report the implementation of a tunable beam displacer, composed of a polarizing beam splitter(PBS) and two mirrors, that divides an initially polarized beam into two parallel beams whose separation can be continuously ...