采用“自下而上”的电化学沉积方法，在透明ITO 玻璃基底上制备了银树枝/二氧化钛/银树枝的复合结构。通过调节工艺，实现了样品在可见光波段由多频透射到单频透射的转变。并且通过改变沉积条件等，可以灵活调节样品的响应频段。制备了在绿光、黄光和红光频段产生响应的3种样品，并测试了绿光频段样品的平板聚焦行为。实验发现，这种特殊的光透射行为和平板聚焦现象是由光波通过复合材料时引起的电磁谐振所致。
In this paper,an Ag/TiO2/Ag composite configuration,of which the Ag has dendrite-like morpholo-gy,was successfully prepared on a transparent ITO glass substrate via the bottom-up electrochemical deposition method.By adj usting the process conditions,the transmission of sample can be altered from multiple frequen-cies to single frequency.And the operating frequency of sample can be flexibly tuned via changing deposition process.Three kinds of samples that respectively operate in the region of green,yellow,and red wavelengths were fabricated.In addition,we measured the flat-focusing property of the sample working at green wave-lengths.It was found that the unique properties of transmission and flat-focusing phenomenon can be attributed to the electromagnetic resonance induced by the interaction between optical waves and the composite configura-tion.
参考文献
| [1] | Wang XQ.;Itoh H.;Naka K.;Chujo Y. .Tetrathiafulvalene-assisted formation of silver dendritic nanostructures in acetonitrile[J].Langmuir: The ACS Journal of Surfaces and Colloids,2003(15):6242-6246. |
| [2] | Xiuwen Zheng;Liying Zhu;Xinjun Wang;Aihui Yan;Yi Xie .A simple mixed surfactant route for the preparation of noble metal dendrites[J].Journal of Crystal Growth,2004(1/2):255-262. |
| [3] | He R.;Qian XF.;Yin J.;Zhu ZK. .Formation of silver dendrites under microwave irradiation[J].Chemical Physics Letters,2003(3-4):454-458. |
| [4] | Robert Fedyk;Dariusz Hreniak;Witold Lojkowski;Wieslaw Strek;Hubert Matysiak;Ewa Grzanka;Stanislaw Gierlotka;Piotr Mazur .Method of preparation and structural properties of transparent YAG nanoceramics[J].Optical materials,2007(10):1252-1257. |
| [5] | Ji-Guang Li;Takayasu Ikegami .Co-precipitation synthesis and sintering of yttrium aluminum garnet (YAG) powders: the effect of precipitant[J].Journal of the European Ceramic Society,2000(14/15):2395-2405. |
| [6] | Porta F;Prati L;Rossi M et al.Metal sols as auseful tool for heterogeneous gold catalyst preparation:reinvesti-gation of a liquid phase oxidation[J].Catalysis Today,2000,61:165-172. |
| [7] | Zhou Xin;Zhao Xiaopeng;Liu Hui .Disorder effects of left-handed metamaterials with unitary dendritic structure cell[J].Opt Erpress,2008,16:7674-7679. |
| [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] | 赵炜,赵晓鹏.银树枝状纳米结构阵列的制备与性能研究[J].功能材料,2010(12):2157-2160. |
| [10] | 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. |
| [11] | 马鹤立,宋坤,周亮,赵晓鹏.可见光多频超材料吸收器的制备工艺及性能的研究[J].功能材料,2012(07):884-887. |
| [12] | Zhao Xiaopeng;Luo Wei;Huang Jingxing et al.Trapped rainbow effect in visible light left-handed het-erostructures[J].Applied Physics Letters,2009,95:071111. |
| [13] | 付全红,赵晓鹏,海明,代琛,陈一帆,陈龙.可见光波段超材料左手行为及左手异质结构捕获彩虹效应[J].功能材料,2013(22):3251-3254. |
| [14] | Zhou Xin;Fu Quanhong;Zhao J et al.Negative perme-ability and subwavelength focusing of quasi-periodic den-dritic cell metamaterials[J].Opt Erpress,2006,14:7188-7197. |
| [15] | Zhou Xin;Zhao Xiaopeng .Resonant condition of unitary dendritic structure with overlapping negative permittivity and permeability[J].Applied Physics Letters,2007,91:181908. |
| [16] | Yao Yuan;Zhao Xiaopeng .Multilevel dendritic structure with simultaneously negative permittivity and permeabil-ity[J].Journal of Applied Physics,2007,101:124904. |
| [17] | Patanjali V P;Wentao T L;Plarenta V et al.Imaging by flat lens using negative refraction[J].NATURE,2003,426:404. |
| [18] | Pendry J B .Perfect cylindrical lenses[J].Opt Erpress,2003,11:755-760. |
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