Observation of Whispering Gallery Modes in InGaN/GaN Multi-Quantum Well Microdisks with Ag Plasmonic Nanoparticles on Si Pedestals

被引：1
|
作者：
Lee, Kang Jea [1 ,2 ]
Duc Anh Dinh [2 ]
Huynh Tran My Hoa [2 ]
Pham Hoai Phuong [2 ]
Hoang Hung Nguyen [2 ]
Hui, Kwan San [3 ]
Hui, Kwun Nam [4 ]
Tran Viet Cuong [2 ]
机构：
[1] Chonbuk Natl Univ, Semicond Phys Res Ctr, Jeonju 561756, South Korea
[2] Nguyen Tat Thanh Univ, VKTECH Res Ctr, NTT Hitech Inst, 298-300A Nguyen Tat Thanh St,Ward 13,Dist 4, Ho Chi Minh City, Vietnam
[3] Univ East Anglia, Fac Sci, Sch Engn, Norwich NR4 7TJ, Norfolk, England
[4] Univ Macau, Inst Appl Phys & Mat Engn, Joint Key Lab, Minist Educ, Ave Univ, Taipa, Macau Sar, Peoples R China
来源：
JOURNAL OF ELECTRONIC MATERIALS | 2022年 / 51卷 / 05期
关键词：
Microdisks; whispering gallery modes; InGaN; GaN multi-quantum wells; LIGHT-EMITTING-DIODES; GAN; QUALITY; POWER;
D O I：
10.1007/s11664-022-09464-3
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, plasmonic freestanding InGaN/GaN multi-quantum well (MQW) microdisks were fabricated on Si (111) pedestals using wet chemical undercut etching, followed by decorating of Ag nanoparticles on microdisks to improve whispering gallery mode (WGM) resonance emission. The enhancement resulted from the plasmonic coupling effect between excitons in MQWs and localized surface plasmons of Ag. The radial resonance of WGMs from optically pumped microdisk cavities were observed in the photoluminescence spectra at a threshold optical pumping power density of 4.7 kW/cm(2) with a WGM mode spacing of Delta lambda = 1.3 nm.
引用
收藏
页码：2054 / 2061
页数：8
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