Abstract
A significant (to 12 ps) decrease in the lifetime of excited states of quantum emitters in the form of three-layer colloidal quantum dots (CdSe/CdS/ZnS) placed in an aluminum–triangular silver nanoprism cavity (patch nanoantenna) has been experimentally demonstrated. The decrease in the time of spontaneous emission of quantum dots has been explained by the Purcell effect. The Purcell coefficient for an emitter in the resonator has been found to be 625. Such a significant increase in the rate of spontaneous emission in the patch nanoantenna is due to an increase in the local density of photon states in the plasmonic cavity.
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Original Russian Text © S.P. Eliseev, A.G. Vitukhnovsky, D.A. Chubich, N.S. Kurochkin, V.V. Sychev, A.A. Marchenko, 2016, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2016, Vol. 103, No. 2, pp. 88–92.
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Eliseev, S.P., Vitukhnovsky, A.G., Chubich, D.A. et al. Picosecond time of spontaneous emission in plasmonic patch nanoantennas. Jetp Lett. 103, 82–86 (2016). https://doi.org/10.1134/S0021364016020053
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DOI: https://doi.org/10.1134/S0021364016020053