Optica Open
Browse
arXiv.svg (5.58 kB)

Switchable bifunctional metasurfaces: nearly perfect retroreflection and absorption at THz regime

Download (5.58 kB)
preprint
posted on 2023-11-30, 19:59 authored by Shan Zhu, Yanyan Cao, Yangyang Fu, Xiaochao Li, Lei Gao, Huanyang Chen, Yadong Xu
Here we make use of vanadium dioxide (VO2) to design a bifunctional metasurface working at the same targeted frequency. With the increase of temperature, the functionality of the designed metasurface can switch from a multi-channel retroreflector to a perfect absorber, caused by the phase transition of VO2 from insulator to conductor. Different from traditional bifunctional metasurfaces designed by simple composition of two functionalities, our proposed bifunctional metasurface is based on the interaction between two functionalities. The device shows good potential for the combination of wavefront manipulation and optical absorption, therefore providing a promising approach for switchable detection and anti-detection devices.

History

Disclaimer

This arXiv metadata record was not reviewed or approved by, nor does it necessarily express or reflect the policies or opinions of, arXiv.

Usage metrics

    Categories

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC