We have studied the nonlinear absorption and refractive index in CdTe quantum dots in glass. We find that the nonlinearities differ from those of bulk CdTe. An ultrafast polarization-rotation switch with on-off ratio of 42:1 is demonstrated. We showed that quantum confinement lowers the two-photon absorption coefficient and raises the nonlinear refraction index, both of which are good for all-optical switching devices.


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    Titel :

    Optical nonlinearities in CdTe quantum-dot doped glass for optical switching


    Beteiligte:
    Padilha, L.A. (Autor:in) / Fu, J. (Autor:in) / Hagan, D.J. (Autor:in) / Van Stryland, E.W. (Autor:in) / Cesar, C.L. (Autor:in) / Barbosa, L.C. (Autor:in) / Brito-Cruz, C.H. (Autor:in)


    Erscheinungsdatum :

    2005-01-01


    Format / Umfang :

    418288 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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