科研成果

2014

Chen J, Sun C, Li H, Gong Q. Experimental demonstration of an on-chip polarization splitter in a submicron asymmetric dielectric-coated metal slit. Applied Physics Letters. 2014;104:231111.Abstract

A submicron asymmetric dielectric-coated metal slit with a Fabry-Perot (FP) nano-resonator is experimentally fabricated to realize an ultra-small on-chip polarization splitter. In the hybrid plasmonic structure, both of the transverse-electric (TE) and transverse-magnetic (TM) modes can be efficiently generated on the front metal surface. Based on the quite different resonant conditions and the different field confinements of the two orthogonal polarization modes in the FP resonator, the TM and TE modes are generated to propagate in the opposite directions along the metal surface. In this device, there are no coupling waveguide regions, and the excitation and the splitting of the TE and TM modes are integrated into the same asymmetric nano-slit. This considerably shrinks the device dimension to only about 850 nm (about one wavelength). In such a submicron asymmetric slit, the measured extinction ratios for the two opposite directions can reach up to (eta(L)/eta(R))(TM) approximate to 1:14 and (eta(L)/eta(R))(TE) approximate to 11:1 at lambda = 820 nm. This on-chip submicron polarization splitter is of importance in highly integrated photonic circuits. (C) 2014 AIP Publishing LLC.

Wang TJ, Chen J, Shi X, Hu N, She Z. Experimental evidence for non-linear growth in compressible mixing layer. Science China --- Physics, Mechanics & AstronomyScience China --- Physics, Mechanics & Astronomy. 2014;57:963-970.

Wang R, Tao S, Balkanski Y, Ciais P, Boucher O, Liu J, Piao S, Shen H, Vuolo MR, Valari M, et al. Exposure to ambient black carbon derived from a unique inventory and high-resolution model. Proceedings of the National Academy of Sciences of the United States of America [Internet]. 2014;111:2459-2463. 访问链接

Shang S, Wang C, Liu B, Wu Q, Zhang Q, Liu W, Zheng L, Xu H, Kang X, Zhang X, et al. Extracellular Ca²⁺ per se inhibits quantal size of catecholamine release in adrenal slice chromaffin cells. Cell Calcium. 2014.

Zhang X, Liu J, Liu C, Cole M. Factors influencing users? perceived learning during online searching, in Proceedings of the 9th International Conference on e-Learning (ICEL-2014).; 2014:200–210.

Chen J, Sun C, Gong Q. Fano resonances in a single defect nanocavity coupled with a plasmonic waveguide. OPTICS LETTERS. 2014;39:52-55.Abstract

Two Fano resonances are theoretically predicted in a single defect nanocavity, consisting of a rectangular cavity with a small stub defect, side-coupled with a plasmonic waveguide. These two Fano resonances are found to originate from two different mechanisms. One is caused by the excitation of a high-order resonant mode in the rectangular cavity owing to the structural breaking, and the other is attributed to the inherent resonant mode in the small stub defect. The narrow high-order mode and inherent mode couple with the broad low-order resonant mode in the rectangular cavity, giving rise to two Fano resonances. Because of the different origins, these two Fano resonances exhibit quite different responses to the variations of the structural dimensions. This has important applications in highly sensitive and multiparameter sensing in the complicated environments. (C) 2013 Optical Society of America

Ma L, Qi H, Zhu S, Ma S. A fast background model based surveillance video coding in HEVC, in 2014 IEEE Visual Communications and Image Processing Conference, VCIP 2014, Valletta, Malta, December 7-10, 2014.; 2014:237–240. 访问链接

Li JF, Lu KD, Lv W, Li J, Zhong LJ, Ou YB, Chen DH, Huang X, Zhang YH*. Fast increasing of surface ozone concentrations in Pearl River Delta characterized by a regional air quality monitoring network during 2006-2011,. J. Environ. Sci. 2014;26:23-36.

Wang Y, Fan X, Zhao L, Ma S, Zhao D, Gao W. A fast intra coding algorithm for HEVC, in 2014 IEEE International Conference on Image Processing, ICIP 2014, Paris, France, October 27-30, 2014.; 2014:4117–4121. 访问链接

Wang S, Ma S, Jiang X, Fan J, Zhao D, Gao W. A fast intra optimization algorithm for HEVC, in 2014 IEEE Visual Communications and Image Processing Conference, VCIP 2014, Valletta, Malta, December 7-10, 2014.; 2014:241–244. 访问链接

Zhao L, Fan X, Ma S, Zhao D. Fast intra-encoding algorithm for High Efficiency Video Coding. Sig. Proc.: Image Comm. [Internet]. 2014;29:935–944. 访问链接

L. LH, M. WP. Favored configurations for four-quasiparticle K isomerism in the heaviest nuclei. Phys. Rev. C. 2014;89:044304.

Wang D, Shao S, Yan C, Cai W, Zeng X. Feature-scale simulations of particulate slurry flows in chemical mechanical polishing by smoothed particle hydrodynamics. Communications in Computational Physics [Internet]. 2014;16(5):1389-1418. 访问链接 Abstract

In this paper, the mechanisms of material removal in chemical mechanical polishing (CMP) processes are investigated in detail by the smoothed particle hydrodynamics (SPH) method. The feature-scale behaviours of slurry flow, rough pad, wafer defects, moving solid boundaries, slurry-abrasive interactions, and abrasive collisions are modelled and simulated. Compared with previous work on CMP simulations, our simulations incorporate more realistic physical aspects of the CMP process, especially the effect of abrasive concentration in the slurry flows. The preliminary results on slurry flow in CMP provide microscopic insights on the experimental data of the relation between the removal rate and abrasive concentration and demonstrate that SPH is a suitable method for the research of CMP processes.

Sachs R, Lin Z, Shi J. Ferroelectric-like SrTiO3 surface dipoles probed by graphene. Scientific Reports. 2014.

Li L, Wang Q, Qiu X, Dong Y, Jia S, Hu J. Field determination and QSPR prediction of equilibrium-status soil/vegetation partition coefficient of PCDD/Fs. Journal of Hazardous Materials. 2014;276:278-286.Abstract

Characterizing pseudo equilibrium-status soil/vegetation partition coefficient K-sv, the quotient of respective concentrations in soil and vegetation of a certain substance at remote background areas, is essential in ecological risk assessment, however few previous attempts have been made for field determination and developing validated and reproducible structure-based estimates. In this study, K-SV was calculated based on measurements of seventeen 2,3,7,8-substituted PCDD/F congeners in soil and moss (Dicranum angustum), and rouzi grass (Thylacospermum caespitosum) of two background sites, Ny-Alesund of the Arctic and Zhangmu-Nyalam region of the Tibet Plateau, respectively. By both fugacity modeling and stepwise regression of field data, the air-water partition coefficient (K-AW) and aqueous solubility (S-W) were identified as the influential physicochemical properties. Furthermore, validated quantitative structure-property relationship (QSPR) model was developed to extrapolate the K-SV prediction to all 210 PCDD/F congeners. Molecular polarizability, molecular size and molecular energy demonstrated leading effects on K-SV. (C) 2014 Elsevier B.V. All rights reserved.

Gao Y, Yang SA, Niu Q. Field induced positional shift of bloch electrons and its dynamical implications. Physical Review Letters. 2014;(16).

Wei S, Shen G, Zhang Y, Xue M, Xie H, Lin P, Chen Y, Wang X, Tao S. Field measurement on the emissions of PM, OC, EC and PAHs from indoor crop straw burning in rural China. Environmental Pollution [Internet]. 2014;184:18-24. 访问链接

Zheng S, Liu L, Yu C, Li J, Tan Y. Fireworks algorithm and its variants for solving ICSI2014 competition problems, in International Conference in Swarm Intelligence. Springer International Publishing; 2014:442–451. 访问链接

X. LY, O. RJ, H. HJ, V. RA, E. W, X. LY, F. JC, Y. LW, R. XF. First observation of a rotational band and the role of the proton intruder orbital π1/2+[431] in very neutron-rich odd-odd Nb. Phys. Rev. C. 2014;89:044326.

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