期刊
OPTICS LETTERS
卷 47, 期 23, 页码 6073-6076出版社
Optica Publishing Group
DOI: 10.1364/OL.476857
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资金
- National Natural Science Foundation of China [12004362, 12004361, 61875179]
- Natural Science Foundation of Zhejiang Province [LY22A040006, LQ21A040012]
- Fundamental Research Funds for the Provincial Universities of Zhejiang [2021YW20]
Switchable transmissive and reflective metadevices have been demonstrated by combining metasurfaces with vanadium dioxide. The metasurface can be switched between transmissive and reflective modes by carefully designing the structures and utilizing the phase transition of vanadium dioxide. These switchable metadevices have potential applications in imaging, communication, and information processing.
Metasurfaces have made great progress in the past decade in generating various planar optical devices. However, most metasurfaces exhibit their functions in either reflection mode or transmission mode, with the other mode unutilized. In this work, we demonstrate switchable transmissive and reflective metadevices by combining metasurfaces with vanadium dioxide. The composite metasurface can work as a transmissive metadevice, with one function for vanadium dioxide in the insulating phase, and is changed to a reflective metadevice with another function for vanadium dioxide in the metallic phase. By carefully designing the structures, the metasurface can be switched from a transmissive metalens to a reflective vortex generator, or between a transmissive beam steering and a reflective quarter-wave plate through the phase transition of vanadium dioxide. The switchable transmissive and reflective metadevices have potential applications in imaging, communication, and information processing. (c) 2022 Optica Publishing Group
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