Steps toward the experimental realization of surface plasmon polariton enhanced spontaneous parametric down-conversion

Loot, Ardi; Силдос, И.; Kiisk, V.; Romann, Tavo; Hizhnyakov, V.

doi:10.1016/j.ijleo.2018.06.090

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…[268]. Copyright (2015) National Academy of Sciences been made [273]; stronger nonlinearities, lower losses, and hybrid waveguide designs [271], could potentially overcome current limitations.…”

Section: Nonlinear Quantum Plasmonicsmentioning

confidence: 99%

Nanoscale nonlinear plasmonics in photonic waveguides and circuits

Tuniz

2021

Riv. Nuovo Cim.

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Optical waveguides are the key building block of optical fiber and photonic integrated circuit technology, which can benefit from active photonic manipulation to complement their passive guiding mechanisms. A number of emerging applications will require faster nanoscale waveguide circuits that produce stronger light-matter interactions and consume less power. Functionalities that rely on nonlinear optics are particularly attractive in terms of their femtosecond response times and terahertz bandwidth, but typically demand high powers or large footprints when using dielectrics alone. Plasmonic nanostructures have long promised to harness metals for truly nanoscale, energy-efficient nonlinear optics. Early excitement has settled into cautious optimism, and recent years have been marked by remarkable progress in enhancing a number of photonic circuit functions with nonlinear plasmonic waveguides across several application areas. This work presents an introductory review of nonlinear plasmonics in the context of guided-wave structures, followed by a comprehensive overview of related experiments and applications covering nonlinear light generation, all-optical signal processing, terahertz generation/detection, electro optics, quantum optics, and molecular sensing.

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Section: Nonlinear Quantum Plasmonicsmentioning

confidence: 99%

Nanoscale nonlinear plasmonics in photonic waveguides and circuits

Tuniz

2021

Riv. Nuovo Cim.

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“…For a localized SP mode, the effects of SHG and parametric down-conversion have been studied experimentally in light of nonlinear photon-plasmon interactions [35,36]. The authors of [37,38] considered spontaneous parametric downconversion in nonlinear dielectric media interfacing with metal surfaces so that the linear SP response of the metal enhances the process via weak local field coupling. None of these reports considers the effects of QEs.…”

Section: Introductionmentioning

confidence: 99%

Degenerate parametric down-conversion facilitated by exciton-plasmon polariton states in a nonlinear plasmonic cavity

Piryatinski

Sukharev

2023

Nanotechnology

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We study the effect of degenerate parametric down-conversion (DPDC) in an ensemble of two-level quantum emitters (QEs) coupled via near-field interactions to a single surface plasmon (SP) mode of a nonlinear plasmonic cavity. For this purpose, we develop a quantum driven-dissipative model capturing non-equilibrium dynamics of the system in which incoherently pumped QEs have transition frequency tuned near the second-harmonic response of the SPs. Considering the strong coupling regime, i.e., the SP-QE interaction rate exceeds system dissipation rates, we find a critical SP-QE coupling attributed to the phase transition between normal and lasing steady states. Examining fluctuations above the system's steady states, we predict new elementary excitations, namely, the exciton-plasmon polaritons formed by the two-SP quanta and single-exciton states of QEs. The contribution of two-SP quanta results in the linear scaling of the SP-QE interaction rate with the number of QEs, N o, as opposed to the√N o-scaling known for the Dicke and Tavis-Cummings models. We further examine how SP-QE interaction scaling affects the polariton dispersions and power spectra in the vicinity of the critical coupling. For this purpose, we compare the calculation results assuming a finite ensemble of QEs and the model thermodynamic limit. The calculated power spectra predict an interplay of coherent photon emission by QEs near the second-harmonic frequency and correlated photon-pair emission at the fundamental frequency by the SPs (i.e., the photonic DPDC effect).

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“…There is a number of reports discussion parametric down-conversion due to SP nonlinearity [35,36] and SP induced local fields enhancing the process that takes place in the adjacent nonlinear media. [37,38] Those reports consider weak coupling regime suitable for gen-eration of correlated/entangled quantum photon pairs. In contrast, we focus on the strong coupling regime accompanied by the formation of exciton-plasmon polariton states mixing two-SP quanta and QE excitons.…”

Section: Introductionmentioning

confidence: 99%

Degenerate parametric down-conversion facilitated by exciton-plasmon polariton states in nonlinear plasmonic cavity

Piryatinski¹,

Sukharev²

2022

Preprint

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The effect of degenerate parametric down-conversion (DPDC) is theoretically examined for the case of quantum emitters (QE) coupled via near-field interactions to a plasmonic nanostructure forming plasmonic cavity. We develop quantum driven-dissipative model to describe non-equilibrium dynamics of the system in which incoherently pumped QEs are tuned near second-harmonic response of the SPs. Our analysis shows that above critical SP-QE coupling rate, the system reaches strong coupling regime allowing for a lasing phase steady state. Properties of the exciton-plasmon polariton states formed as fluctuations above the steady state and in particular the effect of polariton facilitated DPDC are discussed. Differences in the polariton properties and DPDC power spectra originating from a finite size of QE ensemble and the model thermodynamic limit are identified.

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Steps toward the experimental realization of surface plasmon polariton enhanced spontaneous parametric down-conversion

Cited by 4 publications

References 35 publications

Nanoscale nonlinear plasmonics in photonic waveguides and circuits

Nanoscale nonlinear plasmonics in photonic waveguides and circuits

Degenerate parametric down-conversion facilitated by exciton-plasmon polariton states in a nonlinear plasmonic cavity

Degenerate parametric down-conversion facilitated by exciton-plasmon polariton states in nonlinear plasmonic cavity

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