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.
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页数：8
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