標題: | Mode-Hopping Phenomena in the InGaN-Based Core-Shell Nanorod Array Collective Lasing |
作者: | Huang, Chia-Yen Tai, Tzu-Ying Lin, Jing-Jie Chang, Tsu-Chi Liu, Che-Yu Lu, Tien-Chang Wu, Yuh-Renn Kuo, Hao-Chung 光電學院 光電工程學系 College of Photonics Department of Photonics |
關鍵字: | GaN;InGaN;core-shell;microcavity;collective lasing;mode hopping |
公開日期: | 1-七月-2018 |
摘要: | A two-dimensional monolithic InGaN-based core-shell it array was excited under a varying temperature. We observed an abrupt dominant mode hopping from 3.29 to 141 eV in the collective lasing as the temperature decreased from T = 240 to 225 K, Photoluminescence under a near-threshold pumping density revealed the splitting of spontaneous emission. between the core and the shell with a decreasing temperature. The bandgap evolution of GaN and InGaN showed opposite trends due to the interaction of temperature effects and bandgap renormalization effects. Theoretical simulation revealed the differences of gain spectra evolution between room lire and to temperature due to the difference the carrier dynamics, In the optically coupled nanorod array, the dominant lasing;mode was not only determined by it structure, but also strongly influenced by external operating conditions. Rattier than singular microcavity lasers the coupled nanorod array demonstrated a broader parameter space for on-chip wavelength manipulation. |
URI: | http://dx.doi.org/10.1021/acsphotonics.8b00471 http://hdl.handle.net/11536/147897 |
ISSN: | 2330-4022 |
DOI: | 10.1021/acsphotonics.8b00471 |
期刊: | ACS PHOTONICS |
Volume: | 5 |
起始頁: | 2724 |
結束頁: | 2729 |
顯示於類別: | 期刊論文 |