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| 1 | Photonic engineering of superbroadband near-infrared emission in nanoglass composites containing hybrid metal and dielectric nanocrystals显示文摘Photonic media containing hybrid noble metal-dielectric nanocrystals(NCs)represent a wonderland of nanophotonics,with a myriad of uncharted optical functions yet to be explored.Capitalizing on the unique phase separation and spontaneous formation of Au-metal NCs in a gallosilicate glass,we fabricated Ni^2+-doped transparent nanoglass composites(GCs)containing Au-metal/γ-Ga2O3-dielectric NCs.Compared with GCs free of Au-metal NCs,the super broadband near-infrared emission of Ni^2+with a full width at half-maximum over280 nm is enhanced twice in the Au-metal/γ-Ga2O3 dual-phase GCs.A comparison is given as to the spontaneous emission(SPE)properties of Ni^2+in the dual-phase GCs when pumped resonantly and off-resonantly with the localized surface plasmon resonance band of the Au-metal NCs.The important role of the Au-metal NCs in the SPE enhancement is revealed by theoretical simulation based on the finite-element method.Combining the photonic engineering effect of hybrid Au-metal/γ-Ga2O3 NCs and the sensitization effect of Yb^3+on Ni^2+,a record-high enhancement factor of over 10 of the Ni^2+NIR emission is achieved,and optical gain is demonstrated in the GCs at the fiber communication wavelength. | ZHIGANG GAO HAIBO ZHU BOCHAO SUN YINGKE JI XIAOSONG LU HAO TIAN JING REN SHU GUO JIANZHONG ZHANG JUN YANG XIANGENG MENG KATSUHISA TANAKA | 2020 | Photonics Research2020，8，5： | 2 |
| 2 | Nonlinear transport in coupled quantum dots:A stationary probability approach显示文摘The stationary tunneling current and differential conductance of the coupled quantum dots system with split-gates are calculated by generalizing the Beenaker's linear response theory for the description of the Coulomb-blockade oscillations of the conductance in the single quantum dot.The calculation of the charging diagram in parallel through the double dot as function of the two side-gate voltages shows a remarkable agreement with the recent experimental results by Hatano et al. | GONG JianPing DUAN SuQing YAN WeiXian ZHAO XianGeng | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，8： | 1 |
| 3 | D(β)-Vertex-Distinguishing Proper Edge-Coloring of Graphs显示文摘 | Zhang Zhongfu Li Jingwen Cheng Xiangeng | 2006 | Applied Mathematics Letters2006，49，3： | 1 |
| 4 | ExperimentalStudy of Two-phase Mechanical Face Sealswith Laser Surface Texturing 显示文摘 | WANG Tao HUANG Weifeng LIU Xiangeng | 2014 | Tribology International2014，72，： | 1 |
| 5 | Mechanism of earthquake simulation as a prenatal stressor retarding rat offspring development and Chinese medicine correcting the retardation:hormones and gene-expression alteration显示文摘 | ZHANG Xiangeng ZHANG Hui TAN Rui | 2012 | Evidence-based Complementary and Alternative Medicine:e CAM2012，，67： | 1 |
| 6 | Genes underlying positive influence of prenatal environmental enrichment and negative influence of prenatal earthquake simulation and corrective influence of Chinese herbal medicine on rat offspring:Irf7 and Ninj2显示文摘 | ZHANG Xiangeng ZHANG Hui LIN Lin | 2014 | African Journal of Traditional Complementary and Alternative Medicines:AJTCAM/African Networks on Ethnomedicines2014，11，2： | 1 |
| 7 | Dynamical localization of semiconductor superlattices under a dc-bichromatic electric field 显示文摘 | DUAN Suqing WANG Zhigang WU Binyi ZHAO Xiangeng | 2003 | Phys Lett A2003，320，： | 1 |
| 8 | The isotope effect of gaseous hydrogen under shock compression显示文摘 | Qifeng Chen Lingcang Cai Fuqian Jing Xiangeng Zhao | 2003 | Shock Waves2003，，3： | 1 |
| 9 | An Application of Set Theory in Quasi-Paracompactness显示文摘In 1977,Yingming Liu introduced quasi-paracompactness and proved that under 2^(ω1)>2~ωevery separable normal quasi-paracompact space is a paracompact space,which is a result of set-theoretic topology.In this paper we further prove that hypothesis“2^(ω1)>2~ω”is equivalent to that every separable normal quasi-paracompact space is a paracompact space,which gives an independent result of quasi-paracompactness. | Xiangeng ZHOU Shou LIN | 2022 | Journal of Mathematical Research with Applications2022，42，6： | 0 |
| 10 | s-Sequence-Covering Mappings on Metric Spaces显示文摘In this paper,we introduce and study s-sequence-covering mappings and 1-s-sequence-covering mappings,obtain some characterizations of s-sequence-covering and compact images of metric spaces,and prove that every s-sequence-covering and compact mapping in first-countable spaces is a 1-s-sequence-covering mapping. | Xiangeng Zhou Li Liu | 2022 | Journal of Mathematical Study2022，55，1： | 0 |
| 11 | Level Crossing in a Driven Double Quantum Well显示文摘The motion of electrons in a double quantum well under the action of a monochromatic driving laser field is investigated.Closed-form solutions of the quasienergy and Floquet states are obtained with the help of SU(2)symmetry,from which the occurrence of quasienergy crossing is demonstrated to coincide with the coherent destruction of tunneling if the high-frequency laser field is involved. | ZHAO Xiangeng | 1994 | Chinese Physics Letters1994，11，10： | 0 |
| 12 | On G-quotient Mappings and Networks Defined by G-convergence显示文摘Let G_(1),G_(2) be methods on topological spaces X and Y respectively,f:X→Y be a mapping,P be a cover of X.f is said to be a(G_(1),G_(2))-quotient mapping provided f^(−1)(U)is G_(1)-open in X,then U is G_(2)-open in Y.P is called a G-cs′-network of X if whenever x={xn}n∈N∈cG(X)and G(x)=x∈U with U open in X,then there exists some n0∈N such that{x,x_(n0)}⊂P⊂U for some P∈P.P is called a G-kernel cover of X if{(U)_(G):U∈P}is a cover of X.In this paper,we introduce the concepts of(G_(1),G_(2))-quotient mappings,G-cs′-networks and G-kernel covers of X,and study some characterizations of(G_(1),G_(2))-quotient mappings,G-cs′-networks,and G-kernel covers of X.In particular,we obtain that if G is a subsequential method and X is a G-Fréchet space with a point-countable G-cs′-network,then X is a meta-Lindelöf space. | Fang Liu Xiangeng Zhou Li Liu | 2023 | Journal of Mathematical Study2023，56，2： | 0 |
| 13 | On I-Covering Mappings and 1-I-Covering Mappings显示文摘In this paper,we introduce the concepts of I-covering mappings and 1-I-covering mappings,discuss the difference between sequence-covering and I-covering mappings by some examples.With those concepts,we get some interesting properties of I-covering(1-I-covering)mappings and some characterizations of I-covering(1-I-covering)and compact mapping images of metric spaces. | Xiangeng ZHOU Li LIU | 2020 | Journal of Mathematical Research with Applications2020，40，1： | 0 |
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