以钛酸正丁酯(TBT)、甲苯和四氯化钛为主要原料,采用溶剂热合成法制备了分级的海胆状氧化钛颗粒,利用化学镀法在其表面镀覆金属银,然后将镀覆银后的颗粒(Ag@TiO2)分散于无水乙醇中,采用流动沉积覆膜的方式,使颗粒均匀地覆盖在涂有PVA的氧化铟锡导电玻璃(ITOG)或普通玻璃(G)基底上.通过组合,制备了结构为ITOG (G)+ PVA+ Ag@ TiO2+ PVA+ ITOG(G)的材料,测试发现该材料在可见光波段存在明显的透射通带和平板聚焦现象.
参考文献
| [1] | Costas M;Soukoulis et al.Negative refractive index at optical wavelengths[J].Science,2007,315(5808):47. |
| [2] | Shalaev VM .Optical negative-index metamaterials[J].Nature photonics,2007(1):41-48. |
| [3] | Smith DR.;Vier DC.;Nemat-Nasser SC.;Schultz S.;Padilla WJ. .Composite medium with simultaneously negative permeability and permittivity[J].Physical review letters,2000(18):4184-4187. |
| [4] | Shelby R A;Smith D R;Schultz S .Experimental verification of a negative index of Refraction[J].Science,2001,292(06):77. |
| [5] | Chen HS;Ran LX;Huangfu JT;Zhang XF;Chen KM;Grzegorczyk TMS;Kong JA .Metamaterial exhibiting left-handed properties over multiple frequency bands[J].Journal of Applied Physics,2004(9):5338-5340. |
| [6] | Grigorenko A N;Geim A K et al.Nanofabricated media with negative permeability at visible frequencies[J].Nature,2005,438:335. |
| [7] | G. Dolling;M. Wegener;C. M. Soukoulis;S. Linden .Negative-index metamaterial at 780 nm wavelength[J].Optics Letters,2007(1):53-55. |
| [8] | Hui Liu;Xiaopeng Zhao;Yang Yang;Qingwu Li;Jun Lv .Fabrication of Infrared Left-Handed Metamaterials via Double Template-Assisted Electrochemical Deposition[J].Advanced Materials,2008(11):2050-2054. |
| [9] | Baoqi Liu;Xiaopeng Zhao;Weiren Zhu;Wei Luo;Xiaochao Cheng .Multiple Pass-Band Optical Left-Handed Metamaterials Based on Random Dendritic Cells[J].Advanced functional materials,2008(21):3523-3528. |
| [10] | 凤仪,袁海龙.碳纳米管的化学镀银[J].功能材料,2004(03):317-319. |
| [11] | Jiang Jinlong et al.Preparation of monodisperse Ni/PS spheres and hollow nickel spheres by ultrasonic electroless plating[J].Surface and Coatings Technology,2007,201(16-17):7174. |
| [12] | Pendry J B;Holden A J;Stewart W J et al.Extremely low frequency plasmons in metallic mesostructures[J].Physical Review Letters,1996,76(25):4773. |
| [13] | Pendry J.B.;Robbins D.J.;Stewart W.J.;Holden A.J. .Magnetism from conductors and enhanced nonlinear phenomena[J].IEEE Transactions on Microwave Theory and Techniques,1999(11):2075-2084. |
| [14] | Francisco J. Rodriguez-Fortuno;Carlos Garcia-Meca;Ruben Ortuno;Javier Marti;Alejandro Martinez .Modeling high-order plasmon resonances of a U-shaped nanowire used to build a negative-index metamaterial[J].Physical review, B. Condensed matter and materials physics,2009(7):075103:1-075103:10. |
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