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Proceedings Paper

Fabrication and characterization of coupled ensembles of epitaxial quantum dots and metal nanoparticles supporting localized surface plasmons
Author(s): Alexander Kosarev; Vladimir Chaldyshev; Nikita Toropov; Igor Gladskikh; Polina Gladskikh; Kseniia Baryshnikova; Valeriy Preobrazhenskiy; Michael Putyato; Boris Semyagin; Tigran Vartanyan
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Paper Abstract

A stack of five layers of epitaxial InAs QDs with GaAs barriers was grown by molecular-beam epitaxy. The upper layer of QDs was capped by 3nm-GaAs/3nm-AlAs/4nm-GaAs layer sequence. Then, a thin silver layer was added via physical vapor deposition. After annealing isolated silver nanoparticles were formed above the layer of buried InAs quantum dots. We studied interplay of the exciton resonance in InAs QDs and plasmon resonance in Ag nanoparticles. In particular, we observed more than twofold enhancement of the exciton photoluminescence intensity from the InAs QDs when they were coupled to the silver nanoparticles.

Paper Details

Date Published: 25 August 2017
PDF: 6 pages
Proc. SPIE 10346, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV, 1034613 (25 August 2017); doi: 10.1117/12.2272994
Show Author Affiliations
Alexander Kosarev, Ioffe Institute (Russian Federation)
Saint-Petersburg State Polytechnical Univ. (Russian Federation)
Vladimir Chaldyshev, Ioffe Institute (Russian Federation)
Saint-Petersburg State Polytechnical Univ. (Russian Federation)
Nikita Toropov, ITMO Univ. (Russian Federation)
Igor Gladskikh, ITMO Univ. (Russian Federation)
Polina Gladskikh, ITMO Univ. (Russian Federation)
Kseniia Baryshnikova, ITMO Univ. (Russian Federation)
Valeriy Preobrazhenskiy, A.V. Rzhanov Institute of Semiconductor Physics (Russian Federation)
Michael Putyato, A.V. Rzhanov Institute of Semiconductor Physics (Russian Federation)
Boris Semyagin, A.V. Rzhanov Institute of Semiconductor Physics (Russian Federation)
Tigran Vartanyan, ITMO Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10346:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV
Din Ping Tsai; Takuo Tanaka, Editor(s)

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