Journal ArticleDOI
Ultrawideband Spin-Decoupled Coding Metasurface for Independent Dual-Channel Wavefront Tailoring
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TLDR
A spin‐decoupled coding metasurface is presented for achieving independently spin‐controlled functionalities with high efficiency in an ultrawide frequency band and may trigger interest and open opportunities for advanced functional meta‐devices in practical applications.About:
This article is published in Annalen der Physik.The article was published on 2020-03-01. It has received 22 citations till now.read more
Citations
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Journal ArticleDOI
Fundamentals and applications of spin-decoupled Pancharatnam—Berry metasurfaces
TL;DR: The spin-decoupled Pancharatnam-berry (PB) phase metasurfaces have shown excellent capabilities in controlling circularly polarized (CP) electromagnetic (EM) waves at will as discussed by the authors.
Journal ArticleDOI
Binary geometric phase metasurface for ultra-wideband microwave diffuse scatterings with optical transparency.
TL;DR: The proposed metasurface provides an efficient way to tailor the exotic scattering features with simultaneously high optical transmittance, which can offer crucial benefits in many practical uses, for example, window stealth applications.
Journal ArticleDOI
Spin-selective corner reflector for retro-reflection and absorption by a circular dichroitic manner
He Wang,Yao Jing,Yongfeng Li,Lingling Huang,Maochang Feng,Qi Yuan,Jiafu Wang,Jieqiu Zhang,Shaobo Qu +8 more
TL;DR: In this paper, an N-shaped chiral resonator loaded with two lumped resistors is proposed as the meta-atom producing an adequate phase gradient, assisted by the effect of differential absorption provided an auxiliary degree of freedom for developing circularly polarized waves with a designated spin state.
Journal ArticleDOI
Quad-channel independent wavefront encoding with dual-band multitasking metasurface.
Xin-Yao Luo,Wen-Long Guo,Kai Qu,Qi Hu,Ke Chen,Huaiyu Tang,Junming Zhao,Tian Jiang,Yijun Feng +8 more
TL;DR: In this paper, a reflective coding metasurface was proposed that empowers four independent EM functionalities in quad-polarization channels in two wide frequency bands by integrating quasi-I-shaped and cross-shaped metastructures, which can feature independent phase modulation for two orthogonally linear and two decoupled circular polarizations at low and high frequencies, respectively.
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Helicity-switched hologram utilizing a polarization-free multi-bit coding metasurface.
TL;DR: This work proposes a polarization-free multi-bit coding metasurface that 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 polarization wave illuminations and avoiding polarization-conversion losses.
References
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Journal ArticleDOI
Light Propagation with Phase Discontinuities: Generalized Laws of Reflection and Refraction
Nanfang Yu,Patrice Genevet,Patrice Genevet,Mikhail A. Kats,Francesco Aieta,Francesco Aieta,Jean-Philippe Tetienne,Jean-Philippe Tetienne,Federico Capasso,Zeno Gaburro,Zeno Gaburro +10 more
TL;DR: In this article, a two-dimensional array of optical resonators with spatially varying phase response and subwavelength separation can imprint phase discontinuities on propagating light as it traverses the interface between two media.
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Coding metamaterials, digital metamaterials and programmable metamaterials
TL;DR: Digital metamaterials consisting of two kinds of unit cells whose different phase responses allow them to act as ‘0’ and ‘1’ bits are developed to enable controlled manipulation of electromagnetic waves.
Posted Content
Coding Metamaterials, Digital Metamaterials and Programming Metamaterials
TL;DR: In this paper, Wu et al. proposed a digital metamaterial with two kinds of unit cells with 0 and π phase responses, which they named as "0" and "1" elements.
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Metasurface Polarization Optics: Independent Phase Control of Arbitrary Orthogonal States of Polarization.
TL;DR: This work presents a method allowing for the imposition of two independent and arbitrary phase profiles on any pair of orthogonal states of polarization-linear, circular, or elliptical-relying only on simple, linearly birefringent wave plate elements arranged into metasurfaces.
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Arbitrary spin-to–orbital angular momentum conversion of light
TL;DR: A metasurface converter for optical states that transforms polarization states into optical angular momentum states and illustrates a general material-mediated connection between SAM and OAM of light and may find applications in producing complex structured light and in optical communication.