From Event: SPIE Nanoscience + Engineering, 2018
Twisted light has recently been recognised to provide added degrees of freedom for encoding information in optical quantum communication with light pulses. Here we propose and discuss plasmonic nanoantennas for twisted light allowing through plasmonic bright and dark modes to convert the information about the orbital angular momentum embedded in twisted light into spectral information. We also discuss orbital angular momentum dichroism in the interaction of twisted light with plasmonic nanostructures.
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Ortwin Hess, "Plasmonic nanoantennas for twisted light (Conference Presentation)," Proc. SPIE 10721, Active Photonic Platforms X, 1072110 (Presented at SPIE Nanoscience + Engineering: August 21, 2018; Published: 17 September 2018); https://doi.org/10.1117/12.2322371.5836027097001.