Condensation phenomena in plasmonics

Martikainen, Jani-Petri; Heikkinen, Mikko; Törmä, Païvi

doi:10.1103/physreva.90.053604

Cited by 23 publications

(25 citation statements)

References 34 publications

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“…Rapid progress in the development of nanoscale surface plasmon laser, often referred to as the "spaser", has been reported [8][9][10][11][12]. Theoretical analysis of critical phenomena such as Bose-Einstein condensation (BEC) of the surface plasmon-exciton-polaritons in plasmonic lattices and arrays [13,14] were followed by reports claiming experimental observation of a thermalized room temperature and non-equilibrium BEC along with polariton lasing [4,15].…”

Section: Introductionmentioning

confidence: 99%

Nonequilibrium states of a plasmonic Dicke model with coherent and dissipative surface-plasmon–quantum-emitter interactions

Piryatinski

Roslyak

et al. 2020

Phys. Rev. Research

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Hybrid photonic-plasmonic nanostructures allow one to engineer coupling of quantum emitters and cavity modes accounting for the direct coherent and environment-mediated dissipative pathways. Using the generalized plasmonic Dicke model, we explore the nonequilibrium phase diagram with respect to these interactions. The analysis shows that their interplay results in the extension of the superradiant and regular lasing states to the dissipative coupling regime and an emergent lasing phase without population inversion having a boundary with the superradiant and normal states. Calculated photon emission spectra are demonstrated to carry distinct signatures of these phases.

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Section: Introductionmentioning

confidence: 99%

Nonequilibrium states of a plasmonic Dicke model with coherent and dissipative surface-plasmon–quantum-emitter interactions

Piryatinski

Roslyak

et al. 2020

Phys. Rev. Research

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“…Strong coupling between plasmonic modes and ensembles of emitters has been demonstrated12, and strong coupling even at the level of a few emitters has been reached at room temperature34. Gain assisted propagation of plasmon polaritons, spacing and lasing have been predicted56789 and studied experimentally101112131415161718192021222324, and the possibility of photon condensates has been proposed25. The fundamental tradeoff between the confinement of optical fields and losses26 render plasmonic systems inherently lossy.…”

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confidence: 99%

Lasing in dark and bright modes of a finite-sized plasmonic lattice

et al. 2017

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Lasing at the nanometre scale promises strong light-matter interactions and ultrafast operation. Plasmonic resonances supported by metallic nanoparticles have extremely small mode volumes and high field enhancements, making them an ideal platform for studying nanoscale lasing. At visible frequencies, however, the applicability of plasmon resonances is limited due to strong ohmic and radiative losses. Intriguingly, plasmonic nanoparticle arrays support non-radiative dark modes that offer longer life-times but are inaccessible to far-field radiation. Here, we show lasing both in dark and bright modes of an array of silver nanoparticles combined with optically pumped dye molecules. Linewidths of 0.2 nm at visible wavelengths and room temperature are observed. Access to the dark modes is provided by a coherent out-coupling mechanism based on the finite size of the array. The results open a route to utilize all modes of plasmonic lattices, also the high-Q ones, for studies of strong light-matter interactions, condensation and photon fluids.

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“…Our work goes beyond that by considering QDs instead of quantum rods, by the lifetime measurements and simulations, and notably, by the functionalization method developed here. Our results are of interest considering the potential of this type of nanoparticle arrays with respect to lasing [9][10][11][12], strong coupling studies [13][14][15], and even prospects of phenomena such as photon condensation [36].…”

Section: Resultsmentioning

confidence: 85%

Controlling quantum dot emission by plasmonic nanoarrays

Guo¹,

Derom²,

Väkeväinen³

et al. 2015

Opt. Express

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Metallic nanoparticle arrays support localized surface plasmon resonances (LSPRs) and propagating surface lattice resonances (SLRs). We study the control of quantum dot (QD) emission coupled to the optical modes of silver nanoparticle arrays, both experimentally and numerically. With a hybrid lithography-functionalization method, the QDs are deposited in the vicinity of the nanoparticles. Directionality and enhancement of the emission are observed in photoluminescence spectra and fluorescence lifetime measurements, respectively. Similar features are also demonstrated in the numerical simulations. The tunable emission of this type of hybrid structures could lead to potential applications in light sources.

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Condensation phenomena in plasmonics

Cited by 23 publications

References 34 publications

Nonequilibrium states of a plasmonic Dicke model with coherent and dissipative surface-plasmon–quantum-emitter interactions

Nonequilibrium states of a plasmonic Dicke model with coherent and dissipative surface-plasmon–quantum-emitter interactions

Lasing in dark and bright modes of a finite-sized plasmonic lattice

Controlling quantum dot emission by plasmonic nanoarrays

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