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Regular version of the site

Article

Resonance fluorescence of a two-level quantum emitter near a plasmonic nanoparticle: Role of the near-field polarization

Laser Physics. 2017. Vol. 27. No. 2. P. 1-10.
Vladimirova Yu.V., Chubchev E. D., Zadkov V.N.

It is demonstrated that the interaction of a two-level quantum emitter (atom, molecule, etc)
with a plasmonic nanoparticle (prolate nanospheroid) in an external laser field features either
an essential increase (up to a few orders of magnitude) or reduction (up to a few times) of the
total decay rate of the emitter in specific areas around the nanoparticle in contrast to its decay
rate in a vacuum. It is also shown that the resonance fluorescence spectrum of the emitter
in close proximity to a plasmonic nanoparticle is very sensitive to both the location of the
emitter around the nanoparticle and to polarization of the near-field, which depends in turn on
the polarization of the incident laser field. This can be used in engineering potential quantum
optics experiments with quantum emitters in the near-field, as well as for 3D nanoscopy of the
near-field by registering the resonance fluorescence spectra of quantum emitters scattered in
the vicinity of a plasmonic nanoparticle.