Low-threshold terahertz quantum-cascade lasers

被引：199

作者：

Rochat, M ^{[1
]}

Ajili, L

Willenberg, H

Faist, J

Beere, H

Davies, G

Linfield, E

Ritchie, D

机构：

[1] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland

[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 08期

关键词：

D O I：

10.1063/1.1498861

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A quantum-cascade laser operating at lambda=66 mum is demonstrated. It consists of a three-quantum-well chirped-superlattice active region embedded in a waveguide based on a single interface plasmon and a buried contact. A threshold current density of 210 A/cm(2) at T=12 K, a maximum peak optical power of 4 mW, and operation up to T=44 K are achieved in a 2.7 mm long device with a high reflectivity backfacet coating. (C) 2002 American Institute of Physics.

引用

页码：1381 / 1383

页数：3

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