標題: Photonic Crystal Circular Nanobeam Cavity Laser with Type-II GaSb/GaAs Quantum Rings as Gain Material
作者: Lin, Hsiang-Ting
Hsu, Kung-Shu
Chang, Chih-Chi
Lin, Wei-Hsun
Lin, Shih-Yen
Chang, Shu-Wei
Chang, Yia-Chung
Shih, Min-Hsiung
光電工程學系
Department of Photonics
公開日期: 16-三月-2020
摘要: The optical emission from type-II semiconductor nanostructures is influenced by the long carrier lifetime and can exhibit remarkable thermal stability. In this study, utilizing a high quality photonic crystal circular nanobeam cavity with a high quality factor and a sub-micrometer mode volume, we demonstrated an ultra-compact semiconductor laser with type-II gallium antimonide/gallium arsenide quantum rings (GaSb/GaAs QRs) as the gain medium. The lasing mode localized around the defect region of the nanobeam had a small modal volume and significant coupling with the photons emitted by QRs. It leads the remarkable shortening of carrier lifetime observed from the time-resolved photoluminescence (TRPL) and a high Purcell factor. Furthermore, a high characteristic temperature of 114K was observed from the device. The lasing performances indicated the type-II QRs laser is suitable for applications of photonic integrated circuit and bio-detection applications.
URI: http://dx.doi.org/10.1038/s41598-020-61539-5
http://hdl.handle.net/11536/155443
ISSN: 2045-2322
DOI: 10.1038/s41598-020-61539-5
期刊: SCIENTIFIC REPORTS
Volume: 10
Issue: 1
起始頁: 0
結束頁: 0
顯示於類別:期刊論文