Low threshold THz QC lasers with thin core regions

被引：12
作者：
Chassagneux, Y. [1 ]
Palomo, J.
Colombelli, R.
Barbieri, S.
Sirtori, C.
Sirtori, C.
Beere, H.
Alton, J.
Ritchie, D.
机构：
[1] Univ Paris 11, CNRS, Inst Elect Fondamentale, F-91405 Orsay, France
[2] Univ Paris 07, Paris, France
[3] Univ Cambridge, Cavendish Lab, Cambridge, England
来源：
ELECTRONICS LETTERS | 2007年 / 43卷 / 05期
关键词：
D O I：
10.1049/el:20073842
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：
It is demonstrated that the active region thickness of THz quantum cascade lasers can be reduced by a factor of 2 without effects on the threshold current density and maximum operating temperature of the laser. Pulsed and continuous-wave operation, with a low threshold J(th) = 71 A/cm(2), are obtained for a 5.86 pm-thick THz QC laser. The emission is peake dat lambda similar or equal to 115 mu m and the waveguide resonator is based on a metal-metal geometry.
引用
收藏
页码：285 / 286
页数：2
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