High-efficiency photon-electron coupling resonant emission in GaN-based microdisks on Si

• 作者: Bin Liu Dunjun Chen Kai Cheng Liyang Zhang Menghan Liu Peng Chen Ping Han Rong Zhang Xiangqian Xiu Yi Shi Youdou Zheng Zili Xie
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2020,（8）
• 所属期刊栏目: ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS
• 页码范围: 310-315
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/ab9443

摘要

Resonance effects caused by the photon-electron interaction are a focus of attention in semiconductor optoelectronics,as they are able to increase the efficiency of emission.GaN-on-silicon microdisks can provide a perfect cavity structure for such resonance to occur.Here we report GaN-based microdisks with different diameters,based on a standard blue LED wafer on a Si substrate.A confocal photoluminescence spectroscopy is performed to analyze the properties of all microdisks.Then,we systematically study the effects of radial modes and axial modes of these microdisks on photonelectron coupling efficiency by using three-dimensional finite-difference time-domain simulations.For thick microdisks,photon-electron coupling efficiency is found to greatly depend on the distributions of both the radial modes and the axial modes,and the inclined sidewalls make significant influences on the axial mode distributions.These results are important for realization of high-efficiency resonant emission in GaN-based microcavity devices.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Menghan Liu		1	0	0.0	0.0
2	Peng Chen		1	0	0.0	0.0
3	Zili Xie		1	0	0.0	0.0
4	Xiangqian Xiu		1	0	0.0	0.0
5	Dunjun Chen		1	0	0.0	0.0
6	Bin Liu		1	0	0.0	0.0
7	Ping Han		1	0	0.0	0.0
8	Yi Shi		1	0	0.0	0.0
9	Rong Zhang		1	0	0.0	0.0
10	Youdou Zheng		1	0	0.0	0.0
11	Kai Cheng		1	0	0.0	0.0
12	Liyang Zhang		1	0	0.0	0.0