Summary form only given. Time-domain holography has become increasingly important for ultrafast data processing. However, spectral holeburning media that have previously proven their capability for femtosecond data processing are limited by their inhomogeneously broadened absorption bandwidth. Photorefractive polymers are low cost, mass producible and operate at room temperature. CW diffraction efficiencies near 100% have been reported, and infrared-sensitive materials have recently become available. In order to use PR polymers for information processing, they need to work with ultrashort pulses that have a large bandwidth and yield sufficient diffraction efficiencies. We used a standard two-beam mixing geometry in order to measure the diffraction efficiencies. Reading the hologram with pulsed lasers without the etalon and cross-correlating the diffracted beam with a 130 fs reference beam, different pulse-trains are obtained depending whether we look in the original or in the phase conjugated direction. This demonstrates for the first time femtosecond time-reversal on a 130 fs time scale in the photorefractive polymer at room temperature around 800 nm.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Femtosecond time-reversal in photorefractive polymers


    Beteiligte:
    Giessen, H. (Autor:in) / Christ, A. (Autor:in) / Wagner, A. (Autor:in) / Nau, D. (Autor:in) / Euteneuer, A. (Autor:in) / Ruhle, W.W. (Autor:in) / Kuhl, J. (Autor:in) / Mecher, E. (Autor:in) / Meerholz, K. (Autor:in)


    Erscheinungsdatum :

    1999-01-01


    Format / Umfang :

    300848 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Correlation of Femtosecond Time-Domain Images by use of Photorefractive Holograms

    IEEE; Lasers and Electro-Optics Society | British Library Conference Proceedings | 1997


    Photorefractive polymers with improved efficiency

    Kippelen, B. / Volodin, B.L. / Savina, O. et al. | IEEE | 1997


    WGG2 High-efficiency photorefractive polymers

    Kippelen, B. / Meerholz, K. / Volodin, B. L. et al. | British Library Conference Proceedings | 1995


    Azo-dyed-doped photorefractive polymers

    Kippelen, B. / Lyon, S. R. / Padias, A. B. et al. | British Library Conference Proceedings | 1993