Impact of position-dependent effective mass on injector transmissivity in the quantum-cascade laser

Author(s):  
M.V. Klymenko ◽  
I.M. Safonov ◽  
O.V. Shulika ◽  
I.A. Sukhoivanov
2007 ◽  
Vol 121-123 ◽  
pp. 677-680
Author(s):  
Yan Wu Lu ◽  
Gregory Sun

This paper presents a novel valance intersubband laser based on Si-based Si-Ge superlattices grown on a relaxed Si0.5Ge0.5 buffer layer. Effective mass theory is used to calculate the inplane valence subband dispersion of Si-Ge superlattices within 6×6 Kane model. Analysis of the inplane energy dispersion shows that the light-hole effective mass is inverted at off zone center region. The laser structure can be designed with a simple quantum cascade scheme. Our calculation shows that with the electrical pump, it is possible to achieve population inversion between the two subbands at local k space where the light-hole effective mass is inverted. Optical gain of the order 100/cm can be achieved with a pumping current density 10 kA/cm2.


AIP Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 015325
Author(s):  
Yuhong Zhou ◽  
Junqi Liu ◽  
Shenqiang Zhai ◽  
Ning Zhuo ◽  
Jinchuan Zhang ◽  
...  

2020 ◽  
Vol 22 (45) ◽  
pp. 26459-26467
Author(s):  
Jessica L. Klocke ◽  
Tilman Kottke

Flavin photoreduction in H2O is elucidated by developing a quantum cascade laser setup for time-resolved infrared spectroscopy on irreversible reactions.


2011 ◽  
Vol 99 (14) ◽  
pp. 141112 ◽  
Author(s):  
R. Eichholz ◽  
H. Richter ◽  
S. G. Pavlov ◽  
M. Wienold ◽  
L. Schrottke ◽  
...  

2021 ◽  
Vol 143 ◽  
pp. 107346
Author(s):  
Yuan-Yuan Li ◽  
Fang-Yuan Zhao ◽  
Yu Ma ◽  
Wei-Jiang Li ◽  
Jun-Qi Liu ◽  
...  

2021 ◽  
Vol 118 (7) ◽  
pp. 071101
Author(s):  
Filippos Kapsalidis ◽  
Barbara Schneider ◽  
Matthew Singleton ◽  
Mathieu Bertrand ◽  
Emilio Gini ◽  
...  

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