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Hui Yang

Bio: Hui Yang is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Medicine & Chemistry. The author has an hindex of 15, co-authored 54 publications receiving 849 citations. Previous affiliations of Hui Yang include Hunan University of Technology & Central South University.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a theoretical model for dynamic control of double plasmon-induced transparencies in aperture-coupled metal-dielectric-metal (MDM) waveguide-cavity system is proposed.
Abstract: A theoretical model, for dynamic control of double plasmon-induced transparencies in aperture-coupled metal-dielectric-metal (MDM) waveguide-cavity system, is proposed. Based on the theoretical and numerical results, the formation and evolution mechanisms of double plasmon-induced transparencies are investigated more accurately compared to previous works. The symmetries, positions and measured full width at half maximum (FWHM) of the double transparent windows, and the transmission phase shift can be tuned freely by structural parameters. Moreover, the slot cavity location relative to aperture affects the phase difference between the left and right slot cavities to aperture center and determines the wavelength of resonance mode in aperture-side-coupled slot cavity, which plays an important role in the appearance or disappearance of transparent windows. In particular, supported by the consistency between the theoretical analysis and simulations, we obtain the threshold of coupling distance between two apertures, at which the abrupt phase shift happens. The detailed analysis may open up the possibility for precise control of light in highly integrated optical circuits.

129 citations

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TL;DR: A classic analog of electromagnetically induced transparency (EIT) in a metal-dielectric-metal bus waveguide coupled to two stub resonators is investigated, and the theoretical results agree well with the finite difference time domain simulations.
Abstract: We investigate a classic analog of electromagnetically induced transparency (EIT) in a metal-dielectric-metal (MDM) bus waveguide coupled to two stub resonators. A uniform theoretical model, for both direct and indirect couplings between the two stubs, is established to study spectral features in the plasmonic stub waveguide, and the theoretical results agree well with the finite difference time domain simulations. Adjusting phase difference and coupling strength of the interaction, one can realize the EIT-like phenomena and achieve the required slow light effect. The theoretical results may provide a guideline for the control of light in highly integrated optical circuits.

93 citations

Journal ArticleDOI
TL;DR: The surface chemistry and functional design of the upconverted luminescent NaYF4:Yb/Er nanocrystals using biocompatible FA–chitosan conjugates might provide a powerful nanoplatform for the detection and molecular diagnosis of lung cancer.
Abstract: We demonstrate a robust approach to functionalize the upconverted luminescent NaYF4:Yb/Er nanocrystals with folic acid (FA)–chitosan conjugates for specific targeting and imaging of lung cancer cells. In this approach, the amine groups of FA–chitosan conjugates covalently reacted with the carboxyl groups located on the surface of dimercaptosuccinic acid (DMSA)-modified NaYF4 : Yb/Er nanoparticles. The produced FA–chitosan-coated NaYF4 : Yb/Er nanoparticles were characterized by means of transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) and photoluminescence (PL) spectroscopy. Additionally, a cell viability assay showed that those FA–chitosan-coated fluorescence nanocrystals were fully biocompatible. Moreover, confocal fluorescence images illustrated that the functionalized-NaYF4 : Yb/Er nanoparticles with FA–chitosan conjugates were specific in targeting lung cancer cell lines (H460) rather than human lung fibroblast (HLF) cells. Consequently, the surface chemistry and functional design of the upconverted luminescence nanocrystals using biocompatible FA–chitosan conjugates might provide a powerful nanoplatform for the detection and molecular diagnosis of lung cancer.

93 citations

Journal ArticleDOI
Shiping Zhan1, Hongjian Li1, Guangtao Cao1, Zhihui He1, Boxun Li1, Hui Yang1 
TL;DR: In this paper, a theoretical and numerical investigation of the plasmon-induced transparency (PIT) effect in a dual-ring resonator-coupled metal-dielectric-metal waveguide system is presented.
Abstract: We report a theoretical and numerical investigation of the plasmon-induced transparency (PIT) effect in a dual-ring resonator-coupled metal–dielectric–metal waveguide system. A transfer matrix method (TMM) is introduced to analyse the transmission and dispersion properties in the transparency window. A tunable PIT is realized in a constant separation design. The phase dispersion and slow-light effect are discussed in both the resonance and non-resonance conditions. Finally, a propagation constant based on the TMM is derived for the periodic system. It is found that the group index in the transparency window of the proposed structure can be easily tuned by the period p, which provides a new understanding, and a group index ∼51 is achieved. The quality factor of resonators can also be effective in adjusting the dispersion relation. These observations could be helpful to fundamental research and applications for integrated plasmonic devices.

89 citations

Journal ArticleDOI
TL;DR: High-efficiency polarization-independent vortex beam generators which are capable of transforming the arbitrarily polarized plane wave into a focusing optical vortex beam and an abruptly focusing airy vortex beam are proposed.
Abstract: The optical vortex beam with an orbital angular momentum, featuring a doughnut intensity distribution and a helically structured wavefront, has received extensive attention due to its applications in nanoparticle manipulation and optical communications. In this paper, we propose high-efficiency polarization-independent vortex beam generators which are capable of transforming the arbitrarily polarized plane wave into a focusing optical vortex beam and an abruptly focusing airy vortex beam. Besides, based on holographic metasurfaces, we provide a general design scheme for detecting the topological charges. With such a design strategy, multichannel topological charge resolved devices are demonstrated, which successfully implement the detection of the topological charges from -2 to 2. The metasurfaces designed with a simple and effective method in light manipulation promise photonic applications in secure communications and other related areas.

86 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the main aspects of ultrashort laser pulse filamentation in various transparent media such as air (gases), transparent solids and liquids are introduced and discussed.

2,282 citations

Journal ArticleDOI
TL;DR: Applications in Theranostics Guanying Chen,*,†,‡ Hailong Qiu,*,‡ and Xiaoyuan Chen.
Abstract: Applications in Theranostics Guanying Chen,*,†,‡ Hailong Qiu,†,‡ Paras N. Prasad,*,‡,§ and Xiaoyuan Chen* †School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China ‡Department of Chemistry and the Institute for Lasers, Photonics, and Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States Department of Chemistry, Korea University, Seoul 136-701, Korea Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892-2281, United States

1,994 citations

Journal ArticleDOI
Jing Zhou1, Qian Liu1, Wei Feng1, Yun Sun1, Fuyou Li1 

1,679 citations

Journal ArticleDOI
TL;DR: In this critical review, recent reports regarding the synthesis of water-soluble UCNPs and their surface modification and bioconjugation chemistry are summarized and the applications ofUCNPs for small-animal imaging, including tumor-targeted imaging, lymphatic imaging, vascular imaging and cell tracking are reviewed in detail.
Abstract: Rare-earth upconversion nanophosphors (UCNPs), when excited by continuous-wave near-infrared light, exhibit a unique narrow photoluminescence with higher energy. Such special upconversion luminescence makes UCNPs promising as bioimaging probes with attractive features, such as no auto-fluorescence from biological samples and a large penetration depth. As a result, UCNPs have emerged as novel imaging agents for small animals. In this critical review, recent reports regarding the synthesis of water-soluble UCNPs and their surface modification and bioconjugation chemistry are summarized. The applications of UCNPs for small-animal imaging, including tumor-targeted imaging, lymphatic imaging, vascular imaging and cell tracking are reviewed in detail. The exploration of UCNPs as multifunctional nanoscale carriers for integrated imaging and therapy is also presented. The biodistribution and toxicology of UCNPs are further described. Finally, we discuss the challenges and opportunities in the development of UCNP-based nanoplatforms for small-animal imaging (276 references).

1,442 citations

Journal ArticleDOI
TL;DR: Synthesis, Luminescent Properties, and Biomedical Applications Shili Gai,‡ Chunxia Li,† Piaoping Yang,*,‡ and Jun Lin*,† † state Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences.
Abstract: Synthesis, Luminescent Properties, and Biomedical Applications Shili Gai,†,‡ Chunxia Li,† Piaoping Yang,*,‡ and Jun Lin*,† †State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China ‡Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin, 150001, P. R. China

1,210 citations