Tailoring the optical properties of wide-bandgap based microcavities via metal films

被引：9

作者：

Sebald, K. ^{[1
]}

Rahman, S. K. S. ^{[1
]}

Cornelius, M. ^{[1
]}

Gutowski, J. ^{[1
]}

Klein, T. ^{[2
]}

Klembt, S. ^{[2
]}

Kruse, C. ^{[2
]}

Hommel, D. ^{[2
]}

机构：

[1] Univ Bremen, Inst Solid State Phys, Semicond Opt, D-28334 Bremen, Germany

[2] Univ Bremen, Inst Solid State Phys, Semicond Epitaxy, D-28334 Bremen, Germany

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 06期

关键词：

QUANTUM MICROCAVITY;

D O I：

10.1063/1.4928604

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the tuning of the optical properties of II-VI-material-based microcavity samples, which is achieved by depositing Ag films on top of the structures. The micro-reflectivity spectra show a spectral shift of the sample resonance dependent on the metal layer thickness. By comparison of the experimental findings with the theoretical calculations applying the transfer matrix method on a metal-dielectric mirror structure, the influence of the metal layer particularly with regard to its partial oxidation was explored. Tamm plasmon modes are created at the interface between an open cavity with three ZnSe quantum wells and a metal layer on top. When tuning the excitonic emission relative to the mode by changing the sample temperature, an anticrossing of the resonances was observed. This is a clear indication that the strong coupling regime has been achieved in that sample configuration yielding a Rabi splitting of 18.5meV. These results are promising for the realization of polariton-based optical devices with a rather simple sample configuration. (C) 2015 AIP Publishing LLC.

引用

页数：4