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Localized surface plasmon-enhanced light emission using platinum nanorings in deep ultraviolet-emitting AlGaN quantum wells

Authors
Shin, Hee WoongSon, Kyung RockKim, Tae Geun
Issue Date
1-1월-2016
Publisher
OPTICAL SOC AMER
Citation
OPTICS LETTERS, v.41, no.1, pp.88 - 91
Indexed
SCIE
SCOPUS
Journal Title
OPTICS LETTERS
Volume
41
Number
1
Start Page
88
End Page
91
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/89856
DOI
10.1364/OL.41.000088
ISSN
0146-9592
Abstract
We report the enhancement of deep ultraviolet emissions from AlGaN-based quantum wells (QWs) using energy-matched localized surface plasmons (LSPs) in platinum (Pt) nanoring arrays. The peak resonances of the extinction spectra were shifted to the red spectral region as the nanoring diameters increased, and the Pt nanorings with a diameter of 325 nm exhibited strong photoluminescence (PL) resonance at 279 nm. The emission enhancement ratio was calculated to be 304% in peak PL intensity when compared to that of the bare AlGaN QWs; this is attributed to the strong coupling of QWs with LSPs from the Pt nanorings. (C) 2015 Optical Society of America
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