A Reconfigurable Active Huygens' Metalens
By Ke Chen, Yijun Feng, Francesco Monticone, Junming Zhao, Bo O. Zhu, Tian Jiang, Lei Zhang, Yongjune Kim, Xumin Ding, Shuang Zhang and 2 more. Advances in Materials, 2017
563 citations recorded by the source corpus.
Metasurfaces enable a new paradigm to control electromagnetic waves by manipulating subwavelength artificial structures within just a fraction of wavelength. Despite the rapid growth, simultaneously achieving low‐dimensionality, high transmission efficiency, real‐time continuous reconfigurability, and a wide variety of reprogrammable functions is still very challenging, forcing researchers to realize just one or few of the aforementioned features in one design. This study reports a subwavelength reconfigurable Huygens' metasurface realized by loading it with controllable active elements. The proposed design provides a unified solution to the aforementioned challenges of real‐time local reconfigurability of efficient Huygens' metasurfaces. As one exemplary demonstration, a reconfigurable metalens at the microwave frequencies is experimentally realized, which, to the best of the knowledge, demonstrates for the first time that multiple and complex focal spots can be controlled simultaneously at distinct spatial positions and reprogrammable in any desired fashion, with fast response time and high efficiency. The presented active Huygens' metalens may offer unprecedented potentials for real‐time, fast, and sophisticated electromagnetic wave manipulation such as dynamic holography, focusing, beam shaping/steering, imaging, and active emission control.
Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/c72a23c189892e0d316ba6c564c47281188c9e5a
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In Aerospace Engineering
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Broadband Double-Layered Huygens’ Metasurface Lens Antenna for 5G Millimeter-Wave Systems (2020, unknown): “metalens [54] was reported.”
- Photon Spin Hall Effect-Based Ultra-Thin Transmissive Metasurface for Efficient Generation of OAM Waves (2019, unknown): “Metasurfaces based on Huygens’ principle [28], [29] have also”
- High-efficiency and full-space manipulation of electromagnetic wave-fronts with metasurfaces (2017, background): “1(a)) or pure transmission mode [25-28, 34, 35, 39], which means that they can only efficiently manipulate either the reflected wave-front or transmitted one, leaving half of EM space totally unutilized.”