如何用光波激发金属表面等离体子振荡

大学物理 ›› 2005, Vol. 24 ›› Issue (12): 21-21.

如何用光波激发金属表面等离体子振荡

赵延瑞王永昌赵军武黄丽清

西安交通大学,理学院,现代物理研究所,陕西,西安,710049

出版日期:2005-12-25 发布日期:2005-12-20

How to excite the metallic surface plasmon resonance by light

Online:2005-12-25 Published:2005-12-20

摘要/Abstract

摘要： 通过求解金属表面的麦克斯韦方程,证明了光波不能直接激发表面等离体子波.介绍了Otto装置和Kretschmann装置,这两种装置可利用光波全反射时产生的倏逝波激发表面等离体子波,给出了这两种装置中棱镜和介质的相对电容率关系以及对中间层厚度的要求.

关键词: 金属表面等离体子, 衰减全反射, Otto装置, Kretschamann装置

Abstract: The Maxwell＇s equations are solved on the metallic surface, and the reason why light can not excite the surface plasmons directly is explained. Otto configuration and Kretschmann configuration are introduced, with which the surface plasmons could be excited by the evanescent wave of incident light, and in these two configurations the relationship of dielectric functions of prism and the medium and the requirement of middle layer thickness are presented.

Key words: metallic surface plasmon, attenuated total reflectivity, Otto configuration, Kretschmann configuration

中图分类号:

O482.3

赵延瑞王永昌赵军武黄丽清. 如何用光波激发金属表面等离体子振荡[J]. 大学物理, 2005, 24(12): 21-21.