Now showing items 41-59 of 59

  • 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, ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Weak measurements with orbital-angular-momentum pointer states 

    Puentes, G.; Hermosa, N.; Pérez Torres, Juan (2012-07-24)
    Article
    Open Access
    Weak measurements are a unique tool for accessing information about weakly interacting quantum systems with minimal back action. Joint weak measurements of single-particle operators with pointer states characterized by ...
  • Zero change CMOS microring modulators at 1550 nm: Modeling and characterization 

    Cea Falcó, Marc de (Universitat Politècnica de Catalunya, 2017-06)
    Bachelor thesis
    Open Access
    Covenantee:  Massachusetts Institute of Technology
    While optical communications are the standard solution for long haul communications, its adoption for short range (i.e, intra- and inter-chip interconnects and metro-area) transmission systems, where a considerable increase ...