journal article·2022-11-25

InGaN/GaN Nanorod Arrays for a Hybrid Nanolaser

Di Jiang, Penggang Li, Bin Liu, Kai Huang, Tao Tao, Ting Zhi, Yu Yan, Zili Xie, Junyong Kang, Youdou Zheng, Rong Zhang

ACS Applied Nano Materials· Volume 5· Issue 11
Publisher page

Abstract

Lasers with small size have demonstrated great potential in numerous applications including communication, optical computing, detection, displays, and optical logic circuits. In this study, hybrid plasmonic nanolasers with metal pad structures based on the InGaN/GaN nanorod are designed and fabricated to investigate the lasing modes and polarization modulation. Dominant coupling of the surface plasmon mode has been achieved by optimizing the hybrid nanolaser structures, which significantly enhances the electric field concentration, leading to an ultralow threshold (∼1.19 W cm–2) plasmonic multimode lasing. Based on the theoretical and experimental results, it is proposed that the suitable plasmonic structural parameters could provide wave-vector matching and phase compensation to form a strong plasmon resonator, yielding a low radiative loss and high gain for the laser. These InGaN/GaN nanorod arrays for the hybrid nanolaser not only provide a solution to the ultralow-threshold nanorod-based plasmonic lasers but also advocate the prospect of the greater potential of nanoscale arrays for luminescence and displays. These findings and understandings provide vital insights into the developments of electrically driven plasmonic nanolasers and may contribute to the realization of nanolaser-based display arrays and optical on-chip integration for the next generation of logic circuits.
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Research context

OpenAlex topics: Plasmonic and Surface Plasmon Research · GaN-based semiconductor devices and materials · Thermal Radiation and Cooling Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing210093, P. R. China

Department of Physics, OSED, Fujian Provincial Key Laboratory of Semiconductors Materials and Applications, Future Display Institute in Xiamen, Xiamen University, Xiamen361005, P. R. China

Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, Nanjing National Laboratory of Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing210093, P. R. China

College of Electronic and Optical Engineering, College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing210023, P. R. China

Funding

Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Jiangsu Province · Central University Basic Research Fund of China · Solid State Lighting and Energy-Savings Electronics Collaborative Innovation Center · National Natural Science Foundation of China

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