By Topic

Effects of injector barrier on performance of terahertz quantum-cascade lasers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Luo, H. ; Inst. for Microstruct. Sci., Nat. Res. Council of Canada, Ottawa, ON ; Laframboise, S.R. ; Wasilewski, Z.R. ; Liu, H.C.

An experimental study of the effects of injector barrier thickness on the performance of terahertz quantum-cascade lasers is reported. The injector barrier is varied from 54 to 38 Aring in an otherwise identical 3.4 THz laser structure. It is shown that the threshold current density at 10 K increases monotonically from 445 A/cm2 to 1.29 kA/cm2 with reducing barrier thickness. On the other hand, an optimum injector barrier thickness of 44 Aring is found to give rise to a maximum lasing temperature of 141 K.

Published in:

Electronics Letters  (Volume:43 ,  Issue: 11 )