期刊
OPTICAL AND QUANTUM ELECTRONICS
卷 38, 期 1-3, 页码 257-267出版社
SPRINGER
DOI: 10.1007/s11082-006-0024-7
关键词
nanophotonics; surface plasmon polaritons
The controlled squeezing of electromagnetic energy into nanometric volumes via surface plasmon-polariton excitations in plasmonic nanoresonators is analyzed using the concept of an effective electromagnetic mode volume V-eff, while taking careful account of the plasmon-polariton dispersion and the electromagnetic energy stored in the metal. Together with the quality factor Q of the cavity resonance, this enables a comparison with dielectric optical cavities, where V-eff is limited by diffraction. For a Fabry-Perot type planar metallic cavity, a one-dimensional analytic model as well as a three-dimensional finite-difference time-domain simulation reveal that V-eff is not bounded by diffraction, and that Q/V-eff increases for decreasing cavity size. In this picture, matter-plasmon interactions can be quantified in terms of Q and V-eff, and a resonant cavity model for the enhancement of spontaneous Raman scattering is presented.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据