Y
Yungui Ma
Researcher at Zhejiang University
Publications - 147
Citations - 4246
Yungui Ma is an academic researcher from Zhejiang University. The author has contributed to research in topics: Metamaterial & Thin film. The author has an hindex of 34, co-authored 131 publications receiving 3350 citations. Previous affiliations of Yungui Ma include National University of Singapore & Lanzhou University.
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Ultra-broadband terahertz metamaterial absorber
TL;DR: In this paper, an ultra-broadband, polarization-insensitive, and wide-angle metamaterial absorber for terahertz (THz) frequencies using arrays of truncated pyramid unit structure made of metal-dielectric multilayer composite was demonstrated.
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Experimental Demonstration of a Multiphysics Cloak: Manipulating Heat Flux and Electric Current Simultaneously
TL;DR: An electric-thermal bifunctional device can guide both electric current and heat flux "across" a strong 'scatterer' (air cavity) and restore their original diffusion directions as if nothing exists along the paths, thus rendering dual cloaking effects for objects placed inside the cavity.
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An omnidirectional retroreflector based on the transmutation of dielectric singularities
TL;DR: An omnidirectional retroreflector is demonstrated, a device for faithfully reflecting images and for creating high visibility from all directions, that would normally require a dielectric singularity, an infinity in the refractive index in a real metamaterial.
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Terahertz biosensing with a graphene-metamaterial heterostructure platform
Wendao Xu,Lijuan Xie,Jianfei Zhu,Longhua Tang,Ranjan Singh,Chen Wang,Yungui Ma,Hou-Tong Chen,Yibin Ying,Yibin Ying +9 more
TL;DR: In this paper, a simple biosensing platform was proposed by integrating a monolayer graphene on a terahertz (THz) metamaterial absorber cavity, where the introduction of sensing targets results in a large change of the metammaterial resonant absorption (or reflection) because of their strong interaction with graphene.
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High-performance silicon-graphene hybrid plasmonic waveguide photodetectors beyond 1.55 μm.
Jingshu Guo,Jiang Li,Chaoyue Liu,Yanlong Yin,Wenhui Wang,Zhenhua Ni,Zhilei Fu,Hui Yu,Yang Xu,Yaocheng Shi,Yungui Ma,Shiming Gao,Liming Tong,Daoxin Dai +13 more
TL;DR: This work proposes and realizes high-performance waveguide photodetectors based on bolometric/photoconductive effects by introducing an ultrathin wide silicon−graphene hybrid plasmonic waveguide, which enables efficient light absorption in graphene at 1.55 μm and beyond.