中国物理B ›› 2026, Vol. 35 ›› Issue (2): 24206-024206.doi: 10.1088/1674-1056/ae27b5
• • 上一篇
Unlocking plasmonic nanolaser performance via exciton-plasmon interaction dynamics
Ru Wang(王茹)1,†, Daotong You(游道通)3, Zhuxin Li(李竹新)4, Chuansheng Xia(夏传晟)5, Xiaoxuan Wang(王潇璇)5, Feifei Qin(秦飞飞)6, and Chunxiang Xu(徐春祥)2,‡
- 1 College of Physics and Electronic Engineering, Shanxi Normal University, Taiyuan 030031, China;
2 School of Electronic Science and Engineering, Southeast University, Nanjing 211189, China;
3 Guangxi Key Laboratory of Optoelectronic Information Processing, School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China;
4 School of Mathematics and Physics, Anhui Jianzhu University, Hefei 230031, China;
5 School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;
6 GaN Optoelectronic Integration International Cooperation Joint Laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
Unlocking plasmonic nanolaser performance via exciton-plasmon interaction dynamics
Ru Wang(王茹)1,†, Daotong You(游道通)3, Zhuxin Li(李竹新)4, Chuansheng Xia(夏传晟)5, Xiaoxuan Wang(王潇璇)5, Feifei Qin(秦飞飞)6, and Chunxiang Xu(徐春祥)2,‡
- 1 College of Physics and Electronic Engineering, Shanxi Normal University, Taiyuan 030031, China;
2 School of Electronic Science and Engineering, Southeast University, Nanjing 211189, China;
3 Guangxi Key Laboratory of Optoelectronic Information Processing, School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China;
4 School of Mathematics and Physics, Anhui Jianzhu University, Hefei 230031, China;
5 School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;
6 GaN Optoelectronic Integration International Cooperation Joint Laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
摘要： Plasmonic nanolasers are transitioning from empirical optimization to a new paradigm driven by physical mechanisms. Owing to the lack of guidance from internal mechanisms, this transformation process remains highly challenging. Therefore, elucidating the governing nanoscale light-matter interactions has become essential for unlocking their full performance potential. In this paper, we establish a framework that connects the strength of exciton-plasmon interactions with plasmonic nanolaser performance. The evolution of the laser spectrum under increasing pumping fluence, reflected by variations in intensity, spectral peak position, and full width at half maximum, provides clear evidence of exciton-plasmon interactions. These interactions are further verified by changes in the emission lifetime with incident fluence, and it is found that the lifetime variation correlates with the change in spectral full width at half maximum. Furthermore, we calculate and analyze various loss mechanisms in plasmonic nanolasers, revealing how the strength of exciton-plasmon interactions actively modulates optical loss channels and fundamentally controls the lasing threshold. Understanding exciton-plasmon interaction dynamics is not merely a theoretical pursuit but a critical step toward realizing truly practical and scalable nanophotonic devices.
中图分类号: (Semiconductor lasers; laser diodes)
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