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| 1 | The effect of the Kerr nonlinearity on the transmission through the nanoslit gold film显示文摘This paper has made a theoretical study of enhanced transmission through a gold grating with arrays of subwavelength slits filled with nonlinear Kerr medium. The results of the research are based on rigorous finite-difference time domain calculations. The resonance transmission peaks in the investigated wavelength range are produced as a result of the surface plasmon resonance collaborated with the localized waveguide resonance. The paper also gives a detailed analysis of the influence exerted by various factors: thickness, third-order susceptibility and line refractive index of the nonlinear medium filled in the gold slits arrays and the incident intensity to the transmission. It is found that the small changes of parameters such as medium thickness, third-order susceptibility and line refractive index of the nonlinear medium filled in the gold slits arrays as well as the incident intensity can bring great changes of lateral shift and magnitude variation of the transmission resonance peaks. The report proposes that these phenomena can be applied to designing precise optical switches. | XIE SuXia1,2, LI HongJian1,2, XU HaiQing1, ZHOU Xin1, 2, FU ShaoLi1 & WU JinJun1 1 College of Physics Science and Technology, Central South University, Changsha 410083, China 2 College of Materials Science and Engineering, Central South University, Changsha 410083, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，3： | 3 |
| 2 | Kerr非线性效应对通过金膜狭缝阵列透射特性的影响显示文摘基于严格的有限时域差分方法,研究了填入非线性Kerr介质的金膜狭缝阵列的增强透射特性.结果表明:在所研究的波长范围内出现的共振透射峰是表面等离子体共振和局域波导共振共同作用的结果.详细分析了金膜狭缝阵列中填充的非线性介质的厚度、三阶磁导率、线性折射率以及入射光强对透射特性的影响.发现填充在金膜狭缝阵列中的非线性介质的厚度、三阶磁导率、线性折射率和入射光强度等参数的微小变化就能导致透射共振峰的峰值和峰中心波长的明显改变.这些研究结果或许有助于设计精确光开关等光子器件. | 谢素霞 李宏建 徐海清 周昕 付少丽 吴金军 | 2009 | 中国科学(G辑)2009，39，10： | 0 |
| 3 | Growth and morphological characterization of zinc nanoplates显示文摘Zinc nanoplates were grown using thermal evaporation without catalyst or template involved.Tunneling electron microscopy and selected area electron diffraction analyses showed that the plates were single crystals with either {0001} or {11 20} as basal surfaces.The morphological characteristics were explained in terms of the intrinsic growth anisotropy of zinc,the surface energy of the nano-crystals,the size of the critical nucleus and the migration of the adatoms.Our results suggested a promising low-cost route for synthesis of pure zinc nanoplates which could be used as precursor for further preparing core-shell nanoplate structures. | LUO XiYuan TAN GuoTai YUAN MengYao WANG HuanHua ZHENG JinCheng JIA QuanJie JIANG XiaoMing | 2012 | Science China(Technological Sciences)2012，55，9： | 0 |
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