Summary form only given. The nanocomposite dye-polymer-opal has been prepared and its emission properties investigated to study photonic bandgap (PBG) effects. Opal samples with a periodicity of 220 nm were impregnated with Coumarin 6 dissolved in a polymer solution. Subsequently, UV radiation was used to obtain a solid polymer network in the opal voids. The insufficient refractive index contrast (RI), prevented a full photonic bandgap, however, distinct effects of the PBG structure on the dye emission were observed. The angular dispersion of the scattered light was studied by rotating the sample so that the angle between the [111] plane of opal and the beam axis (/spl theta/) could be varied between the normal and /spl theta/=40/spl deg/. The angle of detection of the scattered light was kept equal to the angle of the light incidence. Photoluminescence was recorded from the front and the back of the sample in both cases under front surface excitation.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Photonic bandgap effects in a dye-polymer-opal composite


    Beteiligte:
    Romanov, S.G. (Autor:in) / Maka, T. (Autor:in) / Torres, C.M.S. (Autor:in) / Mueller, M. (Autor:in) / Zentel, R. (Autor:in)


    Erscheinungsdatum :

    1999-01-01


    Format / Umfang :

    154983 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Face Centered Cubic Photonic Bandgap Materials Based on Opal-Semiconductor Composites

    Miguez, H. / Blanco, A. / Lopez, C. et al. | British Library Online Contents | 1999


    Emission Properties of Dye-Polymer-Opal Photonic Crystals

    Romanov, S. G. / Maka, T. / Sotomayor Torres, C. M. et al. | British Library Online Contents | 1999


    Opal photonic crystals as fiber components

    Tsvetkov, M. Yu. / Samoilovich, M. I. / Kleshcheva, S. M. et al. | SPIE | 2006


    Directional effects in photonic bandgap cavities

    IEEE | British Library Conference Proceedings | 1999


    Photonic bandgap VCSELs

    Birkedal, D. / Bischoff, S. / Romstad, F. et al. | IEEE | 2004