77 citations · 246 across the 10 of their papers we have counts for
10 papers
Asymmetric nonlinear-mode-conversion in an optical waveguide with PT symmetry
Changdong Chen, Youwen Liu, Lina Zhao +2
Asymmetric mode transformation in waveguide is of great significance for on-chip integrated devices with one-way effect, while it is challenging to achieve asymmetric nonlinear-mod…
Phase-gradient metasurfaces based on local Fabry-Perot resonances
Yanyan cao, Bocheng Yu, Yangyang Fu +2
In this work we present a new mechanism for designing phase-gradient metasurfaces (PGMs) to control an electromagnetic wavefront with high efficiency. Specifically, we design a tra…
Switchable bifunctional metasurfaces: nearly perfect retroreflection and absorption at THz regime
Shan Zhu, Yanyan Cao, Yangyang Fu +4
Here we make use of vanadium dioxide (VO2) to design a bifunctional metasurface working at the same targeted frequency. With the increase of temperature, the functionality of the d…
Controllably asymmetric beam splitting via gap-induced diffraction channel transition in dual-layer binary metagratings
Yangyang Fu, Jiaqi Tao, Ailing Song +2
In this work, we designed and studied a feasible dual-layer binary metagrating, which can realize controllable asymmetric transmission and beam splitting with nearly perfect perfor…
Enhanced third-harmonic generation induced by nonlinear field resonances in plasmonic-graphene metasurfaces
Yulian Liu, Shan Zhu, Qingjia Zhou +5
Nonlinear metasurfaces offer new paradigm for boosting optical effect beyond limitations of conventional materials. In this work, we present an alternative way to produce pronounce…
Compact Acoustic Retroreflector Based on A Mirrored Luneburg Lens
Yangyang Fu, Junfei Li, Yangbo Xie +4
We propose and demonstrate a compact acoustic retroreflector that reroutes probing signals back towards the source with minimal scattering. Gradient refractive index (GRIN) acousti…