Ultrastrong Coupling Regime and Plasmon Polaritons in Parabolic Semiconductor Quantum Wells

被引：172

作者：

Geiser, Markus ^{[1
]}

Castellano, Fabrizio ^{[1
]}

Scalari, Giacomo ^{[1
]}

Beck, Mattias ^{[1
]}

Nevou, Laurent ^{[1
]}

Faist, Jerome ^{[1
]}

机构：

[1] ETH, Inst Quantum Elect, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 10期

基金：

瑞士国家科学基金会;

关键词：

MICROCAVITY; ABSORPTION; PHOTON; SYSTEM;

D O I：

10.1103/PhysRevLett.108.106402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultrastrong coupling is studied in a modulation-doped parabolic potential well coupled to an inductance-capacitance resonant circuit. In this system, in accordance to Kohn's theorem, strong reduction of the energy level separation caused by the electron-electron interaction compensates the depolarization shift. As a result, a very large ratio of 27% of the Rabi frequency to the center resonance frequency as well as a polariton gap of width 2 pi X 670 GHz are observed, suggesting parabolic quantum wells as the system of choice in order to explore the ultrastrong coupling regime.

引用

页数：5

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