Electronic band structure and optical gain of GaNxBiyAs1−x−y/GaAs pyramidal quantum dots

• Main Authors: Song, Zhi-Gang, Bose, Sumanta, Fan, Wei-Jun, Li, Shu-Shen
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2016
• Subjects: Photonics
• Online Access: https://hdl.handle.net/10356/80309; http://hdl.handle.net/10220/40459
• Institution: Nanyang Technological University

The electronic band structure and optical gain of GaNxBiyAs1−x−y/GaAs pyramidal quantum dots(QDs) are investigated using the 16-band k ⋅ pmodel with constant strain. The optical gain is calculated taking both homogeneous and inhomogeneous broadenings into consideration. The effective band gap falls...