Purcell factor for a point-like dipolar emitter coupled to a two-dimensional plasmonic waveguide

Barthès, Julien; Francs, Gérard Colas des; Bouhélier, Alexandre; Weeber, Jean-Claude; Dereux, Alain

doi:10.1103/physrevb.84.073403

Cited by 50 publications

(64 citation statements)

References 32 publications

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“…Since the emitted power follows a Lorentzian profile near the SPP resonance, the integration over the SPP contribution leads to [105] This extends the Purcell factor definition to a (lossy) SPP. Care has to be taken when interpretating plasmonic Purcell factor, in particular the role of losses.…”

Section: Relaxation Channelsmentioning

confidence: 84%

“…48). Lossy and lossless rates perfectly superimpose, revealing that the coupling rate to the guided mode does not depend on the propagation losses [105]. The equivalence between the lossy and lossless Purcell factors for a guided mode can be understood as follows.…”

Section: Purcell Factor Near a Plasmonic Waveguidementioning

confidence: 94%

“…The two-dimensional dipolar emission can be numerically achieved using the 2D-Green's dyad technique. It expresses [105,122] …”

Section: In-plane Plasmonic Cavitymentioning

confidence: 99%

“…It is peaked on the plasmon propagation constant k SP P = 2.28k 0 and with a FWHM inversely proportional to the propagation length (L SP P = 1.2 µm; see the inset of figure 11a). This again leads to a closed form expression of the plasmonic Purcell factor [105,122] …”

Section: Purcell Factor Near a Plasmonic Waveguidementioning

confidence: 99%

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Plasmonic Purcell factor and coupling efficiency to surface plasmons. Implications for addressing and controlling optical nanosources

Francs

Barthès

Bouhélier

et al. 2016

J. Opt.

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Abstract. The Purcell factor Fp is a key quantity in cavity quantum electrodynamics (cQED) that quantifies the coupling rate between a dipolar emitter and a cavity mode. Its simple form Fp ∝ Q/V unravels the possible strategies to enhance and control light-matter interaction. Practically, efficient light-matter interaction is achieved thanks to either i) high quality factor Q at the basis of cQED or ii) low modal volume V at the basis of nanophotonics and plasmonics. In the last decade, strong efforts have been done to derive a plasmonic Purcell factor in order to transpose cQED concepts to the nanocale, in a scale-law approach. In this work, we discuss the plasmonic Purcell factor for both delocalized (SPP) and localized (LSP) surface-plasmon-polaritons and briefly summarize the expected applications for nanophotonics. On the basis of the SPP resonance shape (Lorentzian or Fano profile), we derive closed form expression for the coupling rate to delocalized plasmons. The quality factor factor and modal confinement of both SPP and LSP are quantified, demonstrating their strongly subwavelength behaviour.

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Section: Relaxation Channelsmentioning

confidence: 84%

Section: Purcell Factor Near a Plasmonic Waveguidementioning

confidence: 94%

“…The two-dimensional dipolar emission can be numerically achieved using the 2D-Green's dyad technique. It expresses [105,122] …”

Section: In-plane Plasmonic Cavitymentioning

confidence: 99%

Section: Purcell Factor Near a Plasmonic Waveguidementioning

confidence: 99%

See 2 more Smart Citations

Plasmonic Purcell factor and coupling efficiency to surface plasmons. Implications for addressing and controlling optical nanosources

Francs

Barthès

Bouhélier

et al. 2016

J. Opt.

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“…The Purcell effect is manifested in a modification of the spontaneous emission rate (Γ) of a quantum emit-ter induced by its interaction with inhomogeneous environment and is quantitatively expressed by the Purcell factor [114][115][116][117][118][119]. This modification is significant if the environment is a resonator tuned to the emission frequency.…”

Section: All-dielectric Nanophotonics Applicationsmentioning

confidence: 99%

All-Dielectric Nanophotonics: Fundamentals, Fabrication, and Applications

Krasnok¹,

Savelev²,

Baranov³

et al. 2017

World Scientific Handbook of Metamaterials and Plasmonics

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In this Article, we review a novel, rapidly developing field of modern light science named alldielectric nanophotonics. This branch of nanophotonics is based on the properties of high-index dielectric nanoparticles which allow for controlling both magnetic and electric responses of a nanostructured matter. Here, we discuss optical properties of high-index dielectric nanoparticles, methods of their fabrication, and recent advances in practical applications, including the quantum source emission engineering, Fano resonances in all-dielectric nanoclusters, surface enhanced spectroscopy and sensing, coupled-resonator optical waveguides, metamaterials and metasurfaces, and nonlinear nanophotonics.

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Spectroscopy and Biosensing with Optically Resonant Dielectric Nanostructures

Krasnok

Caldarola

Bonod

et al. 2018

Advanced Optical Materials

137

123

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Resonant dielectric nanoparticles made of materials with large positive dielectric permittivity, such as Si, GaP, GaAs, have become a powerful platform for modern light science, enabling various fascinating applications in nanophotonics and quantum optics. In addition to light localization at the nanoscale, dielectric nanostructures provide electric and magnetic resonant responses throughout the visible and infrared spectrum, low dissipative losses and optical heating, low doping effect, and absence of quenching, which are interesting for spectroscopy and biosensing applications. This review presents state‐of‐the‐art applications of optically resonant high‐index dielectric nanostructures as a multifunctional platform for light–matter interactions. Nanoscale control of quantum emitters and applications for enhanced spectroscopy including fluorescence spectroscopy, surface‐enhanced Raman scattering, biosensing, and lab‐on‐a‐chip technology are surveyed. The theoretical background underlying these effects is described, realizations of specific resonant dielectric nanostructures and hybrid excitonic systems are overviewed, and an outlook of the challenges in this field, which remain open to future research, is provided.

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Purcell factor for a point-like dipolar emitter coupled to a two-dimensional plasmonic waveguide

Cited by 50 publications

References 32 publications

Plasmonic Purcell factor and coupling efficiency to surface plasmons. Implications for addressing and controlling optical nanosources

Plasmonic Purcell factor and coupling efficiency to surface plasmons. Implications for addressing and controlling optical nanosources

All-Dielectric Nanophotonics: Fundamentals, Fabrication, and Applications

Spectroscopy and Biosensing with Optically Resonant Dielectric Nanostructures

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