Electromagnetic spin-orbit interactions via scattering of subwavelength apertures.
نویسندگان
چکیده
Circularly polarized electric fields incident on subwavelength apertures produce near-field phase singularities with phase vorticity +/-1 depending on the polarization handedness. These near-field phase singularities combine with those associated with orbital angular momentum and result in polarization-dependent transmission. We produce arbitrary phase vorticity in the longitudinal component of scattered electric fields by varying the incident beam and aperture configuration.
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عنوان ژورنال:
- Physical review letters
دوره 104 8 شماره
صفحات -
تاریخ انتشار 2010