表面等离激元的聚焦与波导增强  

Focusing,waveguiding and resonance enhancement characteristics of surface plasmon polaritons

作　　者：方哲宇[1] 朱星[1] 

机构地区：[1]北京大学物理学院,北京100871

出　　处：《物理》2011年第9期594-600,共7页Physics

基　　金：国家自然科学基金(批准号:61176120;10574002);国家重点基础研究发展计划(批准号:2007CB936800)资助项目

摘　　要：近年来,表面等离激元学(plasmonics)已经形成一个新的学科热点.电子在金属与介质界面的集体振荡行为形成一种元激发——表面等离激元(surface plasomon polariton,SPP).由于其具有特殊的耦合与传播性质,与SPP相关的器件设计与应用成为目前纳米光子学领域的国际前沿研究方向.文章介绍了利用微纳加工技术制备的SPP纳米结构,以及利用近场光学表征手段对SPP聚焦、波导、共振增强现象研究的进展.Plasmonics has become a new research hot spot in recent years.The collective oscillation of electrons at the dielectric and metal interface is a kind of electromagnetic excitation known as a surface plasmon polariton（SPP）.Because of their specific coupling and propagation properties,the design and application of SPP-based devices have become a foremost direction in nano-optics research.In this article we report our investigations on the fabrication of SPP nanostructures,and the characterization of the SPP focusing,waveguide and resonance enhancement properties by means of near-field optics.

关 键 词：表面等离激元 近场光学 纳米结构 

分 类 号：TN252[电子电信—物理电子学]