(Peer-Reviewed) Spin-controlled generation of a complete polarization set with randomly-interleaved plasmonic metasurfaces
Sören im Sande, Yadong Deng, Sergey I. Bozhevolnyi, Fei Ding 丁飞
Centre for Nano Optics, University of Southern Denmark, Odense 5230, Denmark
Opto-Electronic Advances, 2024-07-23
Abstract
Optical metasurfaces, comprising subwavelength quasi-planar nanostructures, constitute a universal platform for manipulating the amplitude, phase, and polarization of light, thus paving a way for the next generation of highly integrated multifunctional optical devices. In this work, we introduce a reflective metasurface for the generation of a complete (angularly resolved) polarization set by randomly interleaving anisotropic plasmonic meta-atoms acting as nanoscale wave plates.
In the proof-of-concept demonstration, we achieve multidirectional beam-steering into different polarization channels forming a complete set of polarization states, which can also be dynamically altered by switching the spin of incident light. The developed design concept represents a significant advancement in achieving flat polarization optics with advanced functionalities.
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