2020
DOI: 10.1364/josab.385918
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Quantum theory of near-field optical imaging with rare-earth atomic clusters

Abstract: Scanning near-field optical imaging (SNOM) using local active probes provides in general images of the electric part of the photonic local density of states. However, certain atomic clusters can supply more information by simultaneously revealing both the magnetic (m-LDOS) and the electric (e-LDOS) local density of states in the optical range. For example, nanoparticles doped with rare-earth elements like europium or terbium provide both electric dipolar (ED) and magnetic dipolar (MD) transitions. In this theo… Show more

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Cited by 8 publications
(7 citation statements)
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“…S 2 ), thus avoiding the PL being governed by the LDOS only. In the low power regime, as previously mentioned, we expect the PL to be dependent mainly on the near-field at the excitation wavelength 12 14 .
Fig.
…”
Section: Resultsmentioning
confidence: 52%
See 1 more Smart Citation
“…S 2 ), thus avoiding the PL being governed by the LDOS only. In the low power regime, as previously mentioned, we expect the PL to be dependent mainly on the near-field at the excitation wavelength 12 14 .
Fig.
…”
Section: Resultsmentioning
confidence: 52%
“…On the other hand, the influence of the pump has been rarely considered experimentally. In fact, the PL signal of a quantum emitter is either proportional to the LDOS or to the near-field intensity when the excited state is saturated or not, respectively 12 14 . In this article, we investigate in the nonsaturated regime the influence of focused cylindrical vector beams on the PL of a rare earth ion-doped thin film deposited on high refractive index dielectric nanostructures.…”
Section: Introductionmentioning
confidence: 99%
“…We have used the Green Dyadic Method (GDM) [39] and especially the python toolkit pyGDM [40,41]. It allows to perform decay-rate calculation inside multi-material nanostructures through a formalism based on field-susceptibilities for the derivation of the LDOS [26,40,42,43]. The GDM is based on a volumic discretization of the nanostructures.…”
Section: Green Dyadic Methods and Differential Evolution Algorithm Ap...mentioning
confidence: 99%
“…Finally, it is now possible to calculate both, the electric and magnetic decay rates also inside nanostructures. pyGDM uses a formalism based on field-susceptibilities for the derivation of the photonic local density of states (LDOS), as detailed in references [30,67,68,69]. We demonstrate the possibility to calculate magnetic decay rates inside nanostructures by a comparison to Mie theory [70,71].…”
Section: Quantum Emitter Decay Rate Inside Nanostructuresmentioning
confidence: 99%