The field lines of Poynting vector around a small particle are investigated on the basis of classical Mie theory [G. Mie, (1908)]. A particle can effectively absorb incident energy from its surrounding regions, resulting in a great increasing in its optical absorption cross-section, which could be much greater than its geometrical cross-section. In general, the absorbed energy flows into the particle through some limited portion of its surface instead of the whole surface. For small /spl epsiv/" particle, the excited particle would release energy by dipole radiation but this radiation is confined in a small region near to the particle. Our simulation also reveals the generation of the "optical vortex" around the particle, as that could be used for a new principle of magnetic storage.


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    Titel :

    Local field of Poynting vector around a small particle


    Beteiligte:
    Wang, Z.B. (Autor:in) / Luk'yanchuk, B.S. (Autor:in) / Hong, M.H. (Autor:in) / Lin, Y. (Autor:in) / Chong, T.C. (Autor:in)


    Erscheinungsdatum :

    01.01.2003


    Format / Umfang :

    74396 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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