The resonance fluorescence spectra of N two-level quantum systems located around the spherical nanoantenna

Authors

  • Yu.V. Vladimirova International Laser Center and Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
  • V.V. Klimov P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninsky ave. 53, 119991 Moscow, Russia
  • V.M. Pastukhov International Laser Center and Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
  • V.N. Zadkov International Laser Center and Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow 119991, Russia

DOI:

https://doi.org/10.12684/alt.1.85

Abstract

Modification of the resonance fluorescence spec-trum of a two-level atom driving by a lasermonochromatic field in the close proximity of aplasmonic nanostructure (metal sphere) is studiedin detail. It is shown that one can control thisspectrum varying four key parameters: distancebetween the atom and the nanosphere, atom’s lo-cation around the nanosphere, the radius of thenanosphere, and polarization of the incident ra-diation. These parameters affect the local fieldenchancement, transition frequency shift and themodification of the radiative decay rate of the atominteracting with the nanosphere, which lead tomodification of the resonance fluorescence spec-trum of the atom (frequency shift of the satellitelines in the Mollow-type triplet, widths of the lines,the spectrum intensity) by contrast with that onein free space. The permittivity of the metal thenanosphere is made of is also an additional param-eter, which defines the nonradiative decay. The lat-ter in combination with other parameters allows tocontinuously control the transition from resonancefluorescence enhancement to its quenching. Thecalculation results are generalized to the case ofN two-level atoms, distributed around the nanopar-ticle in the close proximity of its surface. Thecalculations were performed for different positionsof the detector relative to the system nanoparticle-atom(s).
ALT 12 Conference, Gwatt, Sept. 2 -6, Switzerland

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Published

2012-11-01

How to Cite

Vladimirova, Y., Klimov, V., Pastukhov, V., & Zadkov, V. (2012). The resonance fluorescence spectra of N two-level quantum systems located around the spherical nanoantenna. ALT Proceedings, 1. https://doi.org/10.12684/alt.1.85

Issue

Vol. 1 (2012)

Section

Non-linear optics

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