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Lee, Kang Jea, Dinh, Duc Anh, Hoa, Huynh Tran My, Phuong, Pham Hoai, Nguyen, Hoang Hung, Hui, Kwan San 
ORCID: https://orcid.org/0000-0001-7089-7587, Hui, Kwun Nam and Cuong, Tran Viet
(2022)
Observation of whispering gallery modes in InGaN/GaN multi-quantum well microdisks with Ag plasmonic nanoparticles on Si pedestals.
Journal of Electronic Materials, 51 (5).
pp. 2054-2061.
ISSN 0361-5235
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Abstract
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/cm2 with a WGM mode spacing of Δλ = 1.3 nm.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding Information: This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under Grant Number 103.02-2018.352. |
| Uncontrolled Keywords: | gan multi-quantum wells,microdisks,whispering gallery modes,electronic, optical and magnetic materials,condensed matter physics,electrical and electronic engineering,materials chemistry ,/dk/atira/pure/subjectarea/asjc/2500/2504 |
| Faculty \ School: | Faculty of Science > School of Engineering (former - to 2024) |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 25 Apr 2024 10:32 |
| Last Modified: | 25 Sep 2024 17:44 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/95010 |
| DOI: | 10.1007/s11664-022-09464-3 |
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