贵金属纳米阵列表面等离激元共振局域场增强特性研究

项目名称： 贵金属纳米阵列表面等离激元共振局域场增强特性研究

项目编号： No.11204385

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 物理学I

项目作者： 周张凯

作者单位： 中山大学

项目金额： 30万元

中文摘要： 本课题研究贵金属表面等离激元共振的局域电场增强特性。通过本课题的研究，旨在掌握成熟可控、经济环保的等离激元材料生长工艺，发现等离激元共振强局域电场与物质相互作用的规律和奇异性质特性，为开发各种等离激元器件提供思路和研究方法。 本课题将从理论和实验两个方面开展研究。在实验上，课题将从贵金属纳米阵列制备方法的探索入手，研究以电化学方法为主的微纳阵列加工工艺。同时，通过光致发光探测系统、发光动力学测试系统、Z-Scan探测系统等飞秒测试系统研究等离激元共振增强与物质相互作用的特性。另一方面，在理论分析中，本课题通过分析实验研究的结论，总结归纳贵金属纳米阵列等离激元共振局域电场增强规律，为设计新型等离激元功能材料提供理论依据。 通过本课题的研究，不仅可以发展贵金属纳米阵列的制备工艺，而且明确金属阵列等离激元场共振增强特性、以及与物质相互作用的规律，对于开发设计人工微纳功能材料具有重要意义。

中文关键词： 等离激元；纳米阵列；局域电场增强；光电器件；

英文摘要： We put our research emphasis on the field enhancement properties of surface plasmon resonance in the noble metal nanoarray system. After the investigation of our research, we are able to get mature grown technic which is contralable, cheap and safe to the evironment. Also, we could discover many intriguing phenomena which is led by the interaction between the surface plasmon resonance and materials. It is believed that our findings could help to build applications for the functional plasmonic devices. Our research will be carried out theoretically as well as experimentally. Firstly, we will develop and optimize an electrochemically grow method for the fabircation of the nanoarrays. Meanwhile, the field enhancment properties of surface plasmon resonance in metal nanarrays will be measured by photoluminescence (PL) and the dynamics interactions in nanosystem will be analyzed by time-correlated single-photon counting (TCSPEC) system, both with the exication beam being a mode lock femto-sencond laser. Also, we could use Z-scan system to mesure the nonlinear absorption and refraaction properties of the surface plasmon in nanoarrays. On the theoretical part, we could uncover the fundamental physics of plasmon in metal nanoarray systmen by simulate and analyze the observed phenomena, so as to support the design of fun

英文关键词： surface plasmon；nanoarray；localized field enhancement；optoelectronic device；