In this work, the near-field and far-field electric magnetic (EM) wave distributions of metallic slits was observed using tapered fiber probe and modelled using finite difference time domain (FDTD) computer simulations. The EM wave field distribution from rectangular slits with widths 100 nm, 300 nm, and 500 nm was mapped with excitation wavelength /spl lambda/ = 532 nm. /spl lambda//2 can be considered a characteristic length for the problem. From the experiments and FDTD simulation, E/sub /spl perp// wave is found to be governed by the surface plasmon wave (SPW) which results in ill near field pattern and cannot be confined in the slit. On the contrary, E/sub /spl par// wave has a well-shaped field distribution and can be confined in the slit.


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    Titel :

    Polarization dependence of light intensity distribution from nanometer metallic slits


    Beteiligte:
    Wei, C.H. (Autor:in) / Wunshain Fann, (Autor:in) / Wei, P.K. (Autor:in) / Tegenfeldt, J.O. (Autor:in) / Austin, R.H. (Autor:in)


    Erscheinungsdatum :

    01.01.2003


    Format / Umfang :

    53682 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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