A diffraction grating engraved in a limited area of a flat aluminum surface serves as coupler to excite surface plasmon that propagates along the flat surface. At the flat surface edge, THz radiation is scattered into free space and impinges the edge of a similar antenna, on which a surface plasmon is excited and diffracted by a grating towards a detector. Using THz time-domain spectroscopy, we study the plasmon-plasmon coupling. We report a strong coupling efficiency over several cm of propagation in air.


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    Title :

    THz Surface Plasmon Antennae Experiments


    Contributors:
    Nazarov, M. (author) / Coutaz, J.-L. (author) / Shkurinov, A. (author) / Garet, F. (author)


    Publication date :

    2006-09-01


    Size :

    1240676 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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