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Qiuhua Wang

Researcher at Beijing University of Technology

Publications -  31
Citations -  280

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 receiving 122 citations.

Papers
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Journal ArticleDOI

Metasurface integrated Vertical Cavity Surface Emitting Lasers for programmable directional lasing emissions

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.
Journal ArticleDOI

Metasurface-integrated vertical cavity surface-emitting lasers for programmable directional lasing emissions.

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.
Journal ArticleDOI

Transfer-free, lithography-free and fast growth of patterned CVD graphene directly on insulators by using sacrificial metal catalyst.

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.
Patent

Low refractive index medium support-type high-contrast grating surface emitting laser

TL;DR: In this article, a low refractive index medium support-type high contrast grating surface emitting laser structure was proposed, which consists of two dielectric films, wherein the thickness is just hundreds of nanometers, equivalent to 3-5 microns of a P-type DBR.