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 |