Full-space spin-decoupled versatile wavefront manipulations using non-interleaved metasurface
Author:
Wang Chaohui1ORCID, Xu He-Xiu1, Hu Guangwei2, Liu Yi2, Liu Tong1, Wang Kun1, Zhang Fan1, Xu Shuo1, Xu Jian1, Pang Zhichao1
Affiliation:
1. Air and Missile Defense College , Air Force Engineering University , Xi’an 710051 , China 2. School of Electrical & Electronic Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
Abstract
Abstract
Achieving multifunctional wavefront manipulations of waves with a flat and thin plate is pivotal for high-capacity communications, which however is also challenging. A multi-layer metasurface with suppressed mode crosstalk provides an efficient recipe primarily for circular polarization, but all multiple functionalities still are confined to locked spin states and modes. Here, a multifunctional metasurface with spin-decoupled full-space wavefront control is reported by multiplexing both linear momentum and frequency degree of freedom. We employed vertically cascaded quadrangular patches and crossbars to integrate both geometric and dynamic phases and realized four channels between two spin states and two frequencies in distinct scattering modes (transmission and reflection). For verification, a proof-of-concept metadevice with four-port wavefront manipulations is experimentally demonstrated, exhibiting distinct functionalities including spin- and frequency-dependent focusing, quad-beam radiation, anomalous reflections, and Bessel beam generation. Our finding of full-space spin-decoupled metasurfaces would be important for high-capacity communications, multifunctional radar detections, and other applications.
Funder
the Key Principal’s Fund of Air Force Engineering University the National Natural Science Foundation of China National Defense Foundation of China National Defense Foundation for Distinguished Young Scholars the Key Program of Natural Science Foundation of Shanxi Province
Publisher
Walter de Gruyter GmbH
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology
Reference44 articles.
1. D. Sievenpiper, Z. Lijun, R. F. J. Broas, N. Alexopolous, and E. Yablonovitch, “High-impedance electromagnetic surfaces with a forbidden frequency band,” IEEE Trans. Microwave Theory Tech., vol. 47, pp. 2059–2074, 1999. https://doi.org/10.1109/22.798001. 2. X. Luo, “Principles of electromagnetic waves in metasurfaces,” Sci. China: Phys. Mech. Astron., vol. 58, p. 594201, 2015. https://doi.org/10.1007/s11433-015-5688-1. 3. N. Yu, P. Genevet, M. A. Kats, et al.., “Light propagation with phase discontinuities: generalized laws of reflection and refraction,” Am. Assoc. Adv. Sci., vol. 334, pp. 333–337, 2011. https://doi.org/10.1126/science.1210713. 4. C. Wang, H. X. Xu, Y. Wang, et al.., “Heterogeneous amplitude‐phase metasurface for distinct wavefront manipulation,” Adv. Photonics Res., vol. 2, p. 2100102, 2021. https://doi.org/10.1002/adpr.202100102. 5. H. X. Xu, S. Tang, X. Ling, W. Luo, and L. Zhou, “Flexible control of highly‐directive emissions based on bifunctional metasurfaces with low polarization cross‐talking,” Ann. Phys., vol. 529, p. 1700045, 2017. https://doi.org/10.1002/andp.201700045.
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