Helicity-switched hologram utilizing a polarization-free multi-bit coding metasurface - Université Paris Nanterre Access content directly
Journal Articles Optics Express Year : 2020

Helicity-switched hologram utilizing a polarization-free multi-bit coding metasurface

Chunsheng Guan
  • Function : Author
Xumin Ding
Zhuochao Wang
  • Function : Author
Kuang Zhang
Ming Jin
  • Function : Author
Qun Wu
  • Function : Author

Abstract

In this work, a polarization-free coding metasurface is proposed to manipulate circularly polarized waves. Compared to a Pancharatnam-Berry phase metasurface, the proposed design not only allows for overcoming anti-symmetrical response characteristics between orthogonal circularly polarized states to enable achieving identical functionality under both right-handed and left-handed circularly polarized wave illuminations and avoiding polarization-conversion losses but also offers additional degree of freedom in the control of handedness. As a proof-of-concept demonstration, a polarization-free multi-bit coding metasurface is designed to realize helicity-switched holograms in the microwave region. Experimental measurements performed on a fabricated prototype reveal outstanding imaging quality with extremely high imaging efficiency above 76% for arbitrary polarizations at 10 GHz. Our proposed method expands the route in manipulating circularly polarized waves and can be applied over the whole electromagnetic spectrum for wavefront manipulation.

Dates and versions

hal-04214272 , version 1 (21-09-2023)

Identifiers

Cite

Chunsheng Guan, Xumin Ding, Zhuochao Wang, Kuang Zhang, Ming Jin, et al.. Helicity-switched hologram utilizing a polarization-free multi-bit coding metasurface. Optics Express, 2020, 28 (15), pp.22669. ⟨10.1364/OE.400274⟩. ⟨hal-04214272⟩
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