УДК: 535.372, 538.915

Absorption and photoluminescence of epitaxial quantum dots in the near field of silver nanostructures

Toropov, N.A., Gladskikh, I.A., Gladskikh, P.V., Kosarev, A.N., Preobrazhenskiy, V.V., Putyato, M.A., Semyagin, B.R., Chaldyshev, V.V., Vartanyan, T.A.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Торопов Н.А., Гладских И.А., Гладских П.В., Косарев А.Н., Преображенский В.В., Путято М.А., Семягин Б.Р., Чалдышев В.В., Вартанян Т.А. Поглощение и фотолюминесценция эпитаксиальных квантовых точек в ближнем поле серебряных наноструктур // Оптический журнал. 2017. Т. 84. № 7. С. 37–40.

Toropov N.A., Gladskikh I.A., Gladskikh P.V., Kosarev A.N., Preobrazhenskiy V.V., Putyato M.A., Semyagin B.R., Chaldyshev V.V., Vartanyan T.A. Absorption and photoluminescence of epitaxial quantum dots in the near field of silver nanostructures [in Russian] // Opticheskii Zhurnal. 2017. V. 84. № 7. P. 37–40.

For citation (Journal of Optical Technology):

N. A. Toropov, I. A. Gladskikh, P. V. Gladskikh, A. N. Kosarev, V. V. Preobrazhenskiĭ, M. A. Putyato, B. R. Semyagin, V. V. Chaldyshev, and T. A. Vartanyan, "Absorption and photoluminescence of epitaxial quantum dots in the near field of silver nanostructures," Journal of Optical Technology. 84(7), 459-461 (2017). https://doi.org/10.1364/JOT.84.000459

Abstract:

The optical properties of a hybrid material consisting of semiconductor quantum dots and metallic nanoparticles are investigated. A semiconductor structure containing a stack of five layers of indium arsenide quantum dots near the surface of gallium arsenide is fabricated using molecular beam epitaxy. The surface of the structure is covered by a layer of silver nanoparticles, whose plasmon resonances are close to exciton transitions in quantum dots. The redshift of the extinction spectrum of the quantum dots and enhancement of photoluminescence are observed, indicating the interaction between the resonances in the components of the hybrid system formed here.

Keywords:

metallic nanoparticles, epitaxial quantum dot, localized surface plasmons, absorption, luminescence

Acknowledgements:

The research was supported by the Russian Foundation for Basic Research (RFBR) (16-02-00932); Grant Council of the President of the Russian Federation (MK 228.2017.2); Government of the Russian Federation (074-U01). The authors express special gratitude to Mikhail Baranov (ITMO University) for his assistance with obtaining micrographs.

OCIS codes: 310.6628, 260.2510, 300.6470

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