High power superlattice quantum cascade laser emitting at 2.0 THz

被引：0

作者：

Worrall, Chris ^{[1
]}

Alton, Jesse ^{[2
]}

Houghton, Mark ^{[1
,2
]}

Barbieri, Stefano ^{[1
,2
]}

Sirtori, Carlo ^{[3
,4
]}

Beere, Harvey E. ^{[1
]}

Ritchie, David ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England

[2] Teraview Ltd, Cambridge CB4 OWS, England

[3] Univ Paris 07, Materiaux & Phenomenes Quant, F-75251 Paris, France

[4] Thales Res & Technol, F-91404 Orsay, France

来源：

TERAHERTZ AND GIGAHERTZ ELECTRONICS AND PHOTONICS V | 2006年 / 6120卷

关键词：

infrared and far-infrared lasers; semiconductor lasers; quantum- well devices;

D O I：

10.1117/12.659718

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report the operation of a 2 THz quantum cascade laser based on a GaAs/Al0.1Ga0.9As heterostructure. Lasing action takes place between an isolated subband and the upper state of a 14 meV wide miniband. In pulsed mode, with a 3.16mm long device, we report a threshold current density of 115 A/cm'(2) at T = 4K, with a maximum measured peak power of 50 mW. The device shows lasing action in continuous wave up to 47K, with a maximum power in excess of 15 mW at T = 4K.

引用

页数：8

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