We have developed a two color pump-probe ellipsometry for the measurement of the optical nonlinear phase shift in a waveguide with quantum dot (QD) core layers. The key point of the method is to utilize the large polarization-dependent property in the optical nonlinearity arising from a flat-dome-like shape of the QDs. In this paper we report the time resolved behavior of the nonlinear response in the QD waveguides obtained by this method. Optical phase shift of more than /spl pi//2 rad was obtained by a pumping of 30 pJ//spl mu/m/sup 2/. Delay time dependence of the phase shift is discussed in connection with the carrier dynamics.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Time-resolved optical nonlinearity measurement by a two color pump-probe ellipsometry in InAs quantum dot waveguide


    Contributors:
    Kanamoto, K. (author) / Nakamura, H. (author) / Nakamura, Y. (author) / Sugimoto, Y. (author) / Asakawa, K. (author) / Ishikawa, H. (author)


    Publication date :

    2003-01-01


    Size :

    115284 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





    Time-resolved pump-probe experiments with 0.1 micron resolution

    Kuball, M. / Vertikov, A. / Nurmikko, A.V. et al. | IEEE | 1996


    Time-Resolved Pump-Probe Experiments with 0.1 Micron Resolution

    IEEE; Lasers and Electro-Optics Society | British Library Conference Proceedings | 1996