Bosonic cascades of indirect excitons

被引：2

作者：

Nalitov, A. V. ^{[1
]}

De Liberato, S. ^{[1
]}

Lagoudakis, P. ^{[1
]}

Savvidis, P. G. ^{[2
,3
]}

Kavokin, A. V. ^{[1
,4
,5
]}

机构：

[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[2] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece

[3] FORTH, IESL, POB 1385, Iraklion 71110, Crete, Greece

[4] St Petersburg State Univ, Spin Opt Lab, 1 Ulianovskaya, St Petersburg 198504, Russia

[5] Quantum Ctr, Skolkovo 143025, Moscow Region, Russia

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2017年 / 108卷

基金：

英国工程与自然科学研究理事会; 俄罗斯基础研究基金会;

关键词：

Bosonic cascade laser; Indirect excitons; Terahertz laser;

D O I：

10.1016/j.spmi.2016.12.008

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Recently, the concept of the terahertz bosonic cascade laser (BCL) based on a parabolic quantum well (PQW) embedded in a microcavity was proposed. We refine this proposal by suggesting transitions between indirect exciton (IX) states as a source of terahertz emission. We explicitly propose a structure containing a narrow-square QW and a wide parabolic QW for the realisation of a bosonic cascade. Advantages of this type of structures are in large dipole matrix elements for terahertz transitions and in long exciton radiative lifetimes which are crucial for realisation of threshold and quantum efficiency BCLs. (C) 2017 Published by Elsevier Ltd.

引用

页码：27 / 31

页数：5

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