Macroscopic far-field observation of the sub-wavelength near-field dipole vortex |
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| Authors: | Xin Li |
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| Institution: | Department of Physics and Astronomy, Mississippi State University, PO Drawer 5167, Mississippi State, MS 39762-5167, United States |
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| Abstract: | The energy flow lines of the radiation emitted by a rotating electric dipole moment have a vortex structure near the source. The spatial extend of this vortex is well below an optical wavelength. This near-field vortex has a macroscopic effect which could be observed in the far field. |
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| Keywords: | Optical vortex Dipole radiation Near field Far field |
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