期刊
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
卷 32, 期 2, 页码 188-193出版社
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.32.000188
关键词
-
类别
资金
- LabEx AMADEus in the framework of IdEx Bordeaux, France [ANR-10-LABX-42, ANR-10-IDEX-03-02]
We present the first unified theory, to the best of our knowledge, of the response of a plasmonic nanosphere (NS) assisted by optical gain media, in the case of a NS coated with a layer of optically active dipolar dyes. We obtain the optical coherent response of the core-shell aggregate in terms of its equivalent polarizability composed of the direct response from the NS and the contribution arising from the cooperative coupling between dyes and surface plasmons of the NS. We identify a mechanism of superradiance-like plasmonic aggregate cooperative emission similar to the conventional Dicke effect with reduced intraband relaxation bandwidth due to the loss compensation in the system. The analysis of the aggregate resonances based on the system eigenvalues provides physical insight into the total loss compensation mechanism and resonance frequency shifts. (C) 2015 Optical Society of America
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