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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 3 — Jan. 30, 2012
  • pp: 2116–2123

Localized surface plasmon enhanced quantum efficiency of InGaN/GaN quantum wells by Ag/SiO2 nanoparticles

Lee-Woon Jang, Dae-Woo Jeon, Trilochan Sahoo, Dong-Seob Jo, Jin-Woo Ju, Seung-jae Lee, Jong-Hyeob Baek, Jin-Kyu Yang, Jung-Hoon Song, Alexander Y. Polyakov, and In-Hwan Lee  »View Author Affiliations


Optics Express, Vol. 20, Issue 3, pp. 2116-2123 (2012)
http://dx.doi.org/10.1364/OE.20.002116


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Abstract

Optical properties of InGaN/GaN multi-quantum-well (MQW) structures with a nanolayer of Ag/SiO2 nanoparticle (NP) on top were studied. Modeling and optical absorption (OA) measurements prove that the NPs form localized surface plasmons (LSP) structure with a broad OA band peaked near 440−460 nm and the fringe electric field extending down to about 10 nm into the GaN layer. The presence of this NP LSP electrical field increases the photoluminescence (PL) intensity of the MQW structure by about 70% and markedly decreases the time-resolved PL (TRPL) relaxation time due to the strong coupling of MQW emission to the LSP mode.

© 2012 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(250.5230) Optoelectronics : Photoluminescence
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices

ToC Category:
Optics at Surfaces

History
Original Manuscript: November 8, 2011
Revised Manuscript: December 28, 2011
Manuscript Accepted: January 2, 2012
Published: January 17, 2012

Virtual Issues
Vol. 7, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Lee-Woon Jang, Dae-Woo Jeon, Trilochan Sahoo, Dong-Seob Jo, Jin-Woo Ju, Seung-jae Lee, Jong-Hyeob Baek, Jin-Kyu Yang, Jung-Hoon Song, Alexander Y. Polyakov, and In-Hwan Lee, "Localized surface plasmon enhanced quantum efficiency of InGaN/GaN quantum wells by Ag/SiO2 nanoparticles," Opt. Express 20, 2116-2123 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-3-2116


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