Design and simulation of terahertz GaAs/AlGaAs quantum cascade laser for higher power performance

详细信息    查看全文

• 作者：Ali Asghar Khorami^a ; ^b ; ^{aa.khorami@modares.ac.ir" class="auth_mail" title="E-mail the corresponding author} ; Ali Riahi^a ; Mohsen Ghahramani^a ; Pedram Bazvand^a
• 关键词：Active region ; Terahertz ; Quantum cascade lasers
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：127
• 期：3
• 页码：1097-1099
• 全文大小：493 K

文摘

Terahertz (THz) quantum cascade lasers (QCLs) emit radiation due to intersubband optical transitions that could be engineered by design. In this paper, in an effort to improve the output power of THz QCLs, the new active-region design based on diagonal transitions is designed and simulated. The results, obtained from self-consistent solutions of the Schrödinger and Poisson equations, show that this design has better performance rather than reported previous works, and the output power of this device can be further improved to produce milliwatts of terahertz radiation at higher temperatures.