Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Cizhe Fang"'
High-Q resonances governed by the quasi-bound states in the continuum in all-dielectric metasurfaces
Autor:
Cizhe Fang, Qiyu Yang, Qingchen Yuan, Xuetao Gan, Jianlin Zhao, Yao Shao, Yan Liu, Genquan Han, Yue Hao
Publikováno v:
Opto-Electronic Advances, Vol 4, Iss 6, Pp 1-10 (2021)
The realization of high-Q resonances in a silicon metasurface with various broken-symmetry blocks is reported. Theoretical analysis reveals that the sharp resonances in the metasurfaces originate from symmetry-protected bound in the continuum (BIC) a
Externí odkaz:
https://doaj.org/article/09886b026a464c0cbede9debdd999203
Autor:
Yong Zhang, Danyang Yao, Yan Liu, Cizhe Fang, Shulong Wang, Guosheng Wang, Yan Huang, Xiao Yu, Genquan Han, Yue Hao
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 4, Pp 1-6 (2021)
With the rapid growth of the artificial neural network, the operational efficiency of von Neumann computing architecture is limited by the separation of memory and processor, and the exploration of the efficient hardware mimicking bionic neurons and
Externí odkaz:
https://doaj.org/article/13356b91292a4bbdb280399bf17b66cd
Autor:
Haodong Hu, Yuchen Liu, Genquan Han, Cizhe Fang, Yanfang Zhang, Huan Liu, Yibo Wang, Yan Liu, Jiandong Ye, Yue Hao
Publikováno v:
Nanoscale Research Letters, Vol 15, Iss 1, Pp 1-8 (2020)
Abstract Effects of post annealing on the physical and electrical properties of solar-blind polycrystalline gallium oxide (Ga2O3) ultraviolet photodetectors on the sapphire substrate are investigated. The grain size of poly-Ga2O3 becomes larger with
Externí odkaz:
https://doaj.org/article/6966780d0f894655bd6f3740ea912ef8
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 1, Pp 1-12 (2020)
In this paper, we demonstrate the feasibility of realizing the extraordinary optical transmission (EOT) and the collimated beaming effect through InSb grating, which has a subwavelength slit surrounded by a finite array of grooves at both sides of th
Externí odkaz:
https://doaj.org/article/51a43ce5051d4f11bb4fd3dbc70e0d56
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 5, Pp 1-9 (2020)
Optical bound states in the continuum (BICs) have recently been studied in a wide range of material systems, where light is perfectly confined in the continuous spectrum of radiating modes. In this paper, we reported periodic nonlinear metasurfaces o
Externí odkaz:
https://doaj.org/article/b2ea9ccc04734550ae03163c25d8320d
Publikováno v:
Nanomaterials, Vol 12, Iss 18, p 3179 (2022)
Electro-optical tuning metasurfaces are particularly attractive since they open up routes for dynamic reconfiguration. The electro-optic (EO) modulation strength essentially depends on the sensitivity to the EO-induced refractive index changes. In th
Externí odkaz:
https://doaj.org/article/2795e03f9eb248d6957267d840accb71
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 1, Pp 1-10 (2019)
In this paper, we demonstrate the light interaction mechanism of black phosphorus (BP) in two different structures: the photonic crystal waveguide (PCW) and photonic crystal mirror (PCM). The optical characteristics are simulated by the numerical met
Externí odkaz:
https://doaj.org/article/4d0c9a04c91346bba5187f9cdc80d868
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 6, Pp 1-9 (2018)
In this paper, buffer-free germanium-tin (GeSn) films on Si(001) grown by molecular beam epitaxy are characterized. GeSn layers show high thermal stability under complementary metal-oxide-semiconductor processing conditions. The experimental results
Externí odkaz:
https://doaj.org/article/e59948413b794fd89121cd7c5d0db94a
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-10 (2018)
In this letter, we propose a strategy to enhance absorption in the black phosphorus absorber based on a nanocavity structure. By introducing a porous silver layer, an enhanced broadband light absorption can be obtained in the spectral range of 520-82
Externí odkaz:
https://doaj.org/article/296103acfa674e2594ff7e0d6686b797
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-9 (2018)
A tensile-strained GeSn/SiGeSn multiple quantum well (MQW) laser wrapped in Si3N4 liner stressor is designed and characterized theoretically. A biaxial tensile strain is introduced into the GeSn/SiGeSn MQW laser by the Si3N4 liner stressor. The boost
Externí odkaz:
https://doaj.org/article/29d918ad3b7149dead772dfe42abb7b9