title: Localized surface plasmon-enhanced light emission using platinum nanorings in deep ultraviolet-emitting AlGaN quantum wells.
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.
authors.forename: Hee Woong
authors.initials: HW
authors.lastname: Shin
authors.forename: Kyung Rock
authors.initials: KR
authors.lastname: Son
authors.forename: Tae Geun
authors.initials: TG
authors.lastname: Kim
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D004583:Electrons; D005708:Gallium / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D055620:Optical Phenomena; D010984:Platinum / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D017607:Aluminum Compounds; C513700:aluminum gallium nitride; D010984:Platinum; D005708:Gallium