Room temperature terahertz polariton emitter

被引：52

作者：

Geiser, Markus ^{[1
]}

Scalari, Giacomo ^{[1
]}

Castellano, Fabrizio ^{[1
]}

Beck, Mattias ^{[1
]}

Faist, Jerome ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 14期

基金：

瑞士国家科学基金会;

关键词：

QUANTUM; PHOTON;

D O I：

10.1063/1.4757611

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Terahertz (THz) range electroluminescence from intersubband polariton states is observed in the ultra strong coupling regime, where the interaction energy between the collective excitation of a dense electron gas and a photonic mode is a significant portion of the uncoupled excitation energy. The polariton's increased emission efficiency along with a parabolic electron confinement potential allows operation up to room temperature in a nonresonant pumping scheme. This observation of room temperature electroluminescence of an intersubband device in the THz range is a promising proof of concept for more powerful THz sources. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757611]

引用

页数：4

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