H
He-Xiu Xu
Researcher at National University of Singapore
Publications - 93
Citations - 5319
He-Xiu Xu is an academic researcher from National University of Singapore. The author has contributed to research in topics: Metamaterial & Polarization (waves). The author has an hindex of 37, co-authored 93 publications receiving 3620 citations. Previous affiliations of He-Xiu Xu include Northwestern Polytechnical University & Southeast University.
Papers
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Journal ArticleDOI
Coherent steering of nonlinear chiral valley photons with a synthetic Au-WS 2 metasurface
Guangwei Hu,Xuanmiao Hong,Kai Wang,Jing Wu,He-Xiu Xu,Wenchao Zhao,Weiwei Liu,Shuang Zhang,Francisco J. Garcia-Vidal,Francisco J. Garcia-Vidal,Bing Wang,Peixiang Lu,Peixiang Lu,Cheng-Wei Qiu +13 more
TL;DR: In this paper, the phase and spin of light were entangled in a transition metal dichalcogenides (TMDC) metasurface to enable coherent valley-exciton-locked chiral emission in monolayer tungsten disulfide (WS2) at room temperature.
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High‐Performance Bifunctional Metasurfaces in Transmission and Reflection Geometries
TL;DR: In this article, a general strategy to design high-efficiency bifunctional devices based on metasurfaces composed by anisotropic meta-atoms with polarization-dependent phase responses is described.
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X-Band Phase-Gradient Metasurface for High-Gain Lens Antenna Application
TL;DR: In this article, a high-gain transmitting lens antenna by employing layered phase-gradient metasurface (MS) was proposed to focus the propagating plane wave to a point with high efficiency.
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Transmissive Ultrathin Pancharatnam-Berry Metasurfaces with nearly 100% Efficiency
TL;DR: A Pancharatnam-Berry metasurface of subwavelength thickness $\ensuremath{\lambda}/8$ with a 91% efficient photonic spin Hall effect, at microwave frequencies isCrafted, which opens up the control of spin-polarized light using spin-dependent metaholograms, polarization modulators, or chirality-controlled surface-plasmon couplers.
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Broadband Vortex Beam Generation Using Multimode Pancharatnam–Berry Metasurface
TL;DR: In this paper, a dual-layer meta-atom is proposed to generate wideband vortex beams by using a Pancharatnam-Berry metasurface in which two orthogonal reflections exhibit a broadband out-of-phase difference.