This article is cited in 3 papers

REVIEWS OF TOPICAL PROBLEMS

Quantum optics of quantum emitters in the near field of a nanoparticle

Yu. V. Vladimirova^ab, V. N. Zadkov<sup>cb

a</sup> Lomonosov Moscow State University, Department of Physics, Quantum Technology Center
^b National Research University Higher School of Economics, Department of Physics, Moscow
^c Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow

Abstract: This review is devoted to studies of quantum optics effects for quantum emitters (QEs) in the near field of nanoparticles (NPs). In the simple model of a two-level QE located near a plasmon NP, we analyze the mechanisms for modifying the radiative and nonradiative decay rates and discuss the distribution of the near-field intensity and polarization around the NP. This distribution has a complex structure, being significantly dependent on the polarization of the external radiation field and on the parameters of NP plasmon resonances. The quantum optics effects in the system (NP+QE+external laser field) are analyzed, including the near-field modification of the resonance fluorescence spectrum of a QE, the bunching/antibunching effects and photon quantum statistics effects in the spectrum, the formation of squeezed light states, and quantum entangled states in such systems.

Keywords: nanophotonics, nanoplasmonics, nanostructure, quantum emitter, two-level system, quantum optics, resonance fluores„cence, antibunching and quantum statistics of photons, squeezed states, quantum entangled states.

PACS: 42.50.-p, 42.79.-e, 78.67.-n

Received: August 19, 2020
Revised: January 13, 2021
Accepted: February 26, 2021

DOI: 10.3367/UFNr.2021.02.038944

 English version: Physics–Uspekhi, 2022, 65:3, 245–269

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