Dielectric Metasurfaces for Complete Control of Phase, Amplitude, and Polarization
Tong Wu,Xueqian Zhang,Quan Xu,Eric Plum,Kaiji Chen,Yuehong Xu,Yongchang Lu,Huifang Zhang,Ziying Zhang,Xieyu Chen,Guanhua Ren,Li Niu,Zhen Tian,Jiaguang Han,Jiaguang Han,Weili Zhang +15 more
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This article is published in Advanced Optical Materials.The article was published on 2021-10-27 and is currently open access. It has received 30 citations till now. The article focuses on the topics: Interference (wave propagation) & Polarization (waves).read more
Citations
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Gate-tuned graphene meta-devices for dynamically controlling terahertz wavefronts
Qiushi Li,X. Cai,Tong Liu,Min Jia,Haoyang Zhou,Huanhuan Liu,Qianqian Wang,Xiaohui Ling,Cong Chen,Fan Ding,Qiong He,Yuanbo Zhang,Shiyi Xiao,Li Zhou +13 more
TL;DR: In this article , a wavefront-control meta-device combining specifically designed metasurfaces and globally tuned graphene layers is proposed to generate vectorial terahertz (THz) beams with continuously varying polarization distributions upon gating.
Journal ArticleDOI
3D Dirac semimetals supported tunable terahertz BIC metamaterials
TL;DR: In this paper , the effects of rotation angles, DSM Fermi level, and configuration of double elliptical resonators have been investigated in the THz regime, and the results show that by altering the rotation angle of the resonator, an obvious sharp BIC transmission dip is observed with the Q-factor of more than 60.
Journal ArticleDOI
Tunable terahertz hybrid metamaterials supported by 3D Dirac semimetals
Xiaoyong He,Wenhan Cao +1 more
TL;DR: In this article , the effects of asymmetric degrees, DSM Fermi levels, and operation frequencies on Fano resonances were systematically analyzed in the THz regime, and an obvious Fano peak was observed by introducing a displacement (asymmetric degree) between STO and DSM resonators.
Journal ArticleDOI
Broadband and Programmable Amplitude-Phase-Joint-Coding Information Metasurface.
TL;DR: A broadband and programmable amplitude-phase-joint-coding (APJC) information metasurface is proposed and experimentally demonstrated, from which the phase and amplitude of reflected electromagnetic waves can be independently controlled by adjusting the bias voltage of PIN diode integrated in the meta-atom.
References
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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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Flat Optics With Designer Metasurfaces
Nanfang Yu,Federico Capasso +1 more
TL;DR: This Review focuses on recent developments on flat, ultrathin optical components dubbed 'metasurfaces' that produce abrupt changes over the scale of the free-space wavelength in the phase, amplitude and/or polarization of a light beam.
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Metalenses at visible wavelengths: Diffraction-limited focusing and subwavelength resolution imaging.
Mohammadreza Khorasaninejad,Wei Ting Chen,Robert C. Devlin,Jaewon Oh,Alexander Y. Zhu,Federico Capasso +5 more
TL;DR: The results firmly establish that metalenses can have widespread applications in laser-based microscopy, imaging, and spectroscopy, with image qualities comparable to a state-of-the-art commercial objective.
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Optically resonant dielectric nanostructures
Arseniy I. Kuznetsov,Andrey E. Miroshnichenko,Mark L. Brongersma,Yuri S. Kivshar,Boris Luk'yanchuk,Boris Luk'yanchuk +5 more
TL;DR: How high-index dielectric nanoparticles can offer a substitute for plasmonic nanoparticle structures, providing a highly flexible and low-loss route to the manipulation of light at the nanoscale is reviewed.
Journal ArticleDOI
Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission
TL;DR: A metasurface platform based on high-contrast dielectric elliptical nanoposts that provides complete control of polarization and phase with subwavelength spatial resolution and an experimentally measured efficiency ranging from 72% to 97%, depending on the exact design.