表面等离子体激元的若干新应用

表面等离子体激元（SPPs）是在金属和介质界面传播的一种波动模式。本文首先叙述了SPPs的相关特性和激发方式，给出了一种基于表面等离子体激元共振（SPR）场增强原理产生相干极紫外辐射的方法，利用该方法可极大地提高光源的光子流量。分析了SPPs在生物及医疗领域的新应用，并对其在治疗癌症方面的技术原理进行了讨论。介绍了SPPs在新型光源和能源领域的发展和应用情况，综述了SPPs在太阳能电池、光子芯片以及集成电路方面的新工艺和新技术，包括最近几年来所取得的一些重要成果。最后讨论了SPPs在光存储方面的快速发展和巨大贡献。

New applications of surface plasmon polaritons

Surface plasmon polaritons(SPPs) are the wave modes propagating at the interface between a metal and a dielectric. Firstly, the basic characteristics and the excitation modes of SPPs are introduced briefly in this paper. Then, a new method to produce coherent extreme ultraviolet radiation based on the light field enhancement of Surface Plasmon Resonance(SPR) is described, which can greatly improve the photon flux of a light source. The new application of SPPs in the fields of biology and medical treatment is analyzed, and the major technologies and principles of curing cancer are discussed. Moreover, the development and application of several kinds of new light sources and energy sources are introduced, meanwhile, the new processes and technologies of solar cells, photonic chips and integrated circuits are summarized, including some of the most improtant achievements made in recent years. Finally, the rapid development and enormous contribution of SPPs to the field of optical storage is discussed.