Spin-controlled generation of a complete polarization set with randomly-interleaved plasmonic metasurfaces

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 r...

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Bibliographic Details
Published in:Opto-Electronic Advances 2024-01, Vol.7 (8), p.240076-240076
Main Authors: im Sande, Sören, Deng, Yadong, Bozhevolnyi, Sergey I., Ding, Fei
Format: Article
Language:English
Subjects:
all-polarization generation
multidirectional beam-steering
plasmonic metasurface
randomly interleaved
spin-controlled
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Summary: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.
ISSN:2096-4579
DOI:10.29026/oea.2024.240076