Electromagnetic spin-orbit interactions via scattering of subwavelength apertures.
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.
Vuong
L T
LT
School of Applied and Engineering Physics, Cornell University, Ithaca, New York, USA. Luat.Vuong@icfo.es
Adam
A J L
AJ
Brok
J M
JM
Planken
P C M
PC
Urbach
H P
HP