Optically pumped low-threshold microdisk lasers on a GeSn-on-insulator substrate with reduced defect density

• Main Authors: Jung, Yongduck, Burt, Daniel, Zhang, Lin, Kim, Youngmin, Joo, Hyo-Jun, Chen, Melvina, Assali, Simone, Moutanabbir, Oussama, Tan, Chuan Seng, Nam, Donguk
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Electrical and electronic engineering; Defects Density; Infrared-Laser
• Online Access: https://hdl.handle.net/10356/162404
• Institution: Nanyang Technological University

Despite the recent success of GeSn infrared lasers, the high lasing threshold currently limits their integration into practical applications. While structural defects in epitaxial GeSn layers have been identified as one of the major bottlenecks towards low-threshold GeSn lasers, the effect of defect...