Room temperature strong light-matter coupling in three dimensional terahertz meta-atoms

被引：20

作者：

Paulillo, B. ^{[1
]}

Manceau, J. -M. ^{[1
]}

Li, L. H. ^{[2
]}

Davies, A. G. ^{[2
]}

Linfield, E. H. ^{[2
]}

Colombelli, R. ^{[1
]}

机构：

[1] Univ Paris 11, Inst Elect Fondamentale, CNRS UMR8622, F-91405 Orsay, France

[2] Univ Leeds, Sch Elect & Elect Engn, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 10期

基金：

欧洲研究理事会;

关键词：

METAMATERIALS;

D O I：

10.1063/1.4943167

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate strong light-matter coupling in three dimensional terahertz meta-atoms at room temperature. The intersubband transition of semiconductor quantum wells with a parabolic energy potential is strongly coupled to the confined circuital mode of three-dimensional split-ring metalsemiconductor- metal resonators that have an extreme sub-wavelength volume (lambda/10). The frequency of these lumped-element resonators is controlled by the size and shape of the external antenna, while the interaction volume remains constant. This allows the resonance frequency to be swept across the intersubband transition and the anti-crossing characteristic of the strong lightmatter coupling regime to be observed. The Rabi splitting, which is twice the Rabi frequency (2 Omega(Rabi)), amounts to 20% of the bare transition at room temperature, and it increases to 28% at low-temperature. (C) 2016 AIP Publishing LLC.

引用

页数：5

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