文献类型：期刊文献

英文题名：Theoretical modelling of tunable narrow band reflective spectrum using nanoscale surface plasmons

作者：Yang, J.[1];Lin, G. W.[1];Niu, Y. P.[1];Gong, S. Q.[1]

机构：[1]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

年份：2017

卷号：389

起止页码：10

外文期刊名：OPTICS COMMUNICATIONS

收录：;EI(收录号：20165103132942);WOS:【SCI-EXPANDED(收录号:WOS:000393012900003)】；

基金：This work was supported by the National Natural Sciences Foundation of China (Grants no. 11347155, No. 91321101, No. 11474092, No. 11274112, and No. 11204080).

语种：英文

外文关键词：Surface plasmon; Ultranarrow band spectrum; Four-level tripod system

摘要：The spectrum width can be narrowed to a certain degree by decreasing the coupling strength for the two-level emitter coupled to the propagating surface plasmon. But the width can not be narrowed any further because of the loss of the photon out of the system by the spontaneous emission of the emitter. Here we accurately solve the single photon scattering problem for the surface plasmon coupling with a four-level tripod emitter, and propose a new scheme to obtain the reflective spectrum with tunable ultranarrow band. It is shown that the spectrum width can be narrowed avoiding the impact of the loss. Furthermore, the position of ultranarrow peak can be tunable by choosing the appropriate parameters.