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Opt Lett. 2007 Sep 15;32(18):2711-3.

Analytical vectorial structure of radially polarized light beams.

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Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, China.


Starting from the vector angular spectrum of the electromagnetic beam, the analytical vectorial structure of the radially polarized beams (RPBs) is presented. The energy flux distributions of the RPBs are demonstrated. The physical pictures of the RPBs are well illustrated from the vectorial structure. This particular electromagnetic field is entirely transverse magnetic, and on axis it only has a longitudinal (z) electric-field component (i.e., no transverse electric field and no magnetic field at all on axis).

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