Doping in quantum cascade lasers.: II.: GaAs/Al0.15Ga0.85As terahertz devices

被引:27
作者
Ajili, Lassaad [1 ]
Scalari, Giacomo [1 ]
Giovannini, Marcella [1 ]
Hoyler, Nicolas [1 ]
Faist, Jerome [1 ]
机构
[1] Univ Neuchatel, Inst Phys, ACH-2000 Neuchatel, Switzerland
基金
瑞士国家科学基金会;
关键词
D O I
10.1063/1.2234805
中图分类号
O59 [应用物理学];
学科分类号
摘要
The performances of GaAs/Al0.15Ga0.85As terahertz quantum cascade lasers based on a bound-to-continuum transition are investigated as a function of injector doping. A linear dependence between threshold current and doping is found and agrees with the expected increase of waveguide losses due to free carrier absorption. (c) 2006 American Institute of Physics.
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页数:3
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