Qiuhua Wang
Beijing University of Technology
31 Papers
109 Citations
Qiuhua Wang is an academic researcher from Beijing University of Technology. The author has contributed to research in topics: Vertical-cavity surface-emitting laser & Graphene. The author has an hindex of 6, co-authored 29 publications.
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Papers
Metasurface integrated Vertical Cavity Surface Emitting Lasers for programmable directional lasing emissions
Yiyang Xie,Peinan Ni,Qiuhua Wang,Qiang Kan,Gauthier Briere,Pei-Pei Chen,Zhuang-Zhuang Zhao,Alexandre Delga,Haoran Ren,Hongda Chen,Chen Xu,Patrice Genevet +11 more
TL;DR: It is shown that the monolithic integration of dielectric metasurfaces with VCSELs enables remarkable arbitrary control of the laser beam profiles, including self-collimation, Bessel and Vortex lasers, with high efficiency.
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Metasurface-integrated vertical cavity surface-emitting lasers for programmable directional lasing emissions.
Yiyang Xie,Peinan Ni,Qiuhua Wang,Qiang Kan,Gauthier Briere,Pei-Pei Chen,Zhuang-Zhuang Zhao,Alexandre Delga,Haoran Ren,Hongda Chen,Chen Xu,Patrice Genevet +11 more
TL;DR: In this paper, the authors show that the monolithic integration of dielectric metasurfaces with VCSELs enables remarkable arbitrary control of the laser beam profiles, including self-collimation, Bessel and Vortex lasers, with high efficiency.
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Transfer-free, lithography-free and fast growth of patterned CVD graphene directly on insulators by using sacrificial metal catalyst.
Yibo Dong,Yiyang Xie,Chen Xu,Yafei Fu,Xing Fan,Xuejian Li,Le Wang,Fangzhu Xiong,Weiling Guo,Guanzhong Pan,Qiuhua Wang,Fengsong Qian,Jie Sun,Jie Sun +13 more
TL;DR: By using this method, transfer-free, lithography-free and fast growth of graphene realized, and the graphene quality is intrinsically better than catalyst-free growth.
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Metasurface Enabled On‐Chip Generation and Manipulation of Vector Beams from Vertical Cavity Surface‐Emitting Lasers
Pan Fu,Peinan Ni,Bo Wu,Xianzi Pei,Qiuhua Wang,Pei-Pei Chen,Chen Xu,Qiang Kan,Weiguo Chu,Yiyang Xie +9 more
TL;DR: In this article , a vectorial VCSEL with a single layer of beam shaping metasurface bypasses the requirements of multiple cascaded optical components, and thus has the potential to promote the advancements of ultracompact, lightweight, and scalable vector beams sources, enriching and expanding the applications of vector vectors in optical communications, laser manipulation and processing, information encryption, and quantum optics.
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