When excitons and plasmons meet: Emerging function through synthesis and assembly

Hollingsworth, Jennifer A.; Htoon, Han; Piryatinski, Andrei; Götzinger, Stephan; Sandoghdar, Vahid

doi:10.1557/mrs.2015.200

Cited by 16 publications

(27 citation statements)

References 127 publications

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“…To facilitate future studies, we show how implement a quantum-optical model that reproduces the experimental observations without adapting free parameters. This theory can help to clarify the exact dependences of interactions between emitters and plasmons in applications of nanoparticle combinations and could be used in combination with g (2) measurements to study the impact of the coupling on the emitted light statistics 19,35 .…”

Section: Discussionmentioning

confidence: 99%

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Metal–Semiconductor Nanoparticle Hybrids Formed by Self-Organization: A Platform to Address Exciton–Plasmon Coupling

et al. 2016

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Hybrid nanosystems composed of excitonic and plasmonic constituents can have different properties than the sum of of the two constituents, due to the exciton-plasmon interaction. Here, we report on a flexible model system based on colloidal nanoparticles that can form hybrid combinations by self-organization. The system allows us to tune the interparticle distance and to combine nanoparticles of different sizes and thus enables a systematic investigation of the exciton-plasmon coupling by a combination of optical spectroscopy and quantum-optical theory. We experimentally observe a strong influence of the energy difference between exciton and plasmon, as well as an interplay of nanoparticle size and distance on the coupling. We develop a full quantum theory for the luminescence dynamics and discuss the experimental results in terms of the Purcell effect. As the theory describes excitation as well as coherent and incoherent emission, we also consider possible quantum optical effects. We find a good agreement of the observed and the calculated luminescence dynamics induced by the Purcell effect. This also suggests that the self-organized hybrid system can be used as platform to address quantum optical effects.

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Section: Discussionmentioning

confidence: 99%

“…The research on materials with optical properties that benefit from the exciton-plasmon coupling is subject of intense research and new design concepts are constantly developed 8,[14][15][16][17][18][19] .…”

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confidence: 99%

Metal–Semiconductor Nanoparticle Hybrids Formed by Self-Organization: A Platform to Address Exciton–Plasmon Coupling

et al. 2016

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“…In quantum plasmonics, highly polarizable metal nanostructures supporting surface-plasmon modes provide a source of strong enhancement in the photon local density of states, an effect similar to a low-Q optical cavity [1]. Technological flexibility in the design of plasmonic cavities allows one to engineer surface-plasmon states and their interactions with quantum emitters (QEs), e.g., fluorescent dyes or semiconductor nanostructures, leading to potentially desirable cooperative properties [1][2][3]. The strong (ultrastrong) coupling regimes, when the surface-plasmon-QE interaction strength exceeds the total cavity losses (becomes comparable to the QE energy), open new opportunities for nonequilibrium exciton-plasmon-polariton condensation, nonlinear emission, and lasing [4,5].…”

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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“…Interfacing organic molecular platforms with surface plasmons (SPs), [29][30][31] which are charge density oscillations at metal-dielectric interface, can provide excellent platform to study exciton-plasmon interaction at weak [32] and strong coupling [33,34] regimes. Interestingly, such coupling can also be harnessed for controlling light emission from organic nanostructures, [35] down to single photon limit.…”

Section: Communicationmentioning

confidence: 99%

“…

CommuniCation

(1 of 6) 1600873 wave guiding [26] of light over millimeter length scale. Such long distance optical transport properties have been utilized for variety of nanophotonics applications such as optical logic gates, [27] resonators, [9,28] nanolasers, [26] photonic circuits, [12,28] etc.Interfacing organic molecular platforms with surface plasmons (SPs), [29][30][31] which are charge density oscillations at metal-dielectric interface, can provide excellent platform to study exciton-plasmon interaction at weak [32] and strong coupling [33,34] regimes. Interestingly, such coupling can also be harnessed for controlling light emission from organic nanostructures, [35] down to single photon limit.

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mentioning

confidence: 99%

Radiative Channeling of Nanowire Frenkel Exciton Polaritons through Surface Plasmons

Tripathi

Vasista

Chikkaraddy

et al. 2017

Advanced Optical Materials

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CommuniCation(1 of 6) 1600873 wave guiding [26] of light over millimeter length scale. Such long distance optical transport properties have been utilized for variety of nanophotonics applications such as optical logic gates, [27] resonators, [9,28] nanolasers, [26] photonic circuits, [12,28] etc.Interfacing organic molecular platforms with surface plasmons (SPs), [29][30][31] which are charge density oscillations at metal-dielectric interface, can provide excellent platform to study exciton-plasmon interaction at weak [32] and strong coupling [33,34] regimes. Interestingly, such coupling can also be harnessed for controlling light emission from organic nanostructures, [35] down to single photon limit. [36] A variety of schemes have been explored to interface excitonic systems with surface plasmons such as coupling of quantum dots with plasmonic substrate, [37] layered materials with plasmonic lattice, [38] core-shell nanoparticles, [33] molecular J-aggregates layer with plasmonic nanoparticles, [39,40] and photonic nanowire with gold nanoparticles. [36] These investigations are predominantly confined to probe energy transfer mechanism, recombination processes, [41] photoluminescence enhancement, [42] Rabi splitting, [43] generation of hybrid states, [44] biosensing applications, [45,46] and low-threshold nonlinear effects. [21] In many of these approaches, the dimensionality of the molecular material is either quasi 0D or quasi 2D in nature. So far, there are a few reports [47,48] on interfacing quasi 1D organic molecular systems, such as horizontally oriented nanowires with surface plasmons. [47,48] Alternately, we have recently introduced vertically oriented organic nanowire on a gold thin film. [49] Such a single, vertical nanowire provides a unique opportunity to study coupling of 1D propagating exciton polaritons with 2D propagating plasmon polaritons at nanoscale at a single point of contact. In this coupling scheme, an important issue to be addressed is the outcoupling of EP photoluminescence emission from a single, vertical nanowire into a specific direction through leaky plasmon channels of a gold film. Given that spontaneous emission is isotropic, there is an imperative to channel the nanowire emission, such that a majority of the light is collected and harnessed. Such directional outcoupling of emitted light has consequence on designing photovoltaic devices such as single-nanowire solar cells, [41,50,51] organic light emitting devices, [3,23] exciton-polariton lasers, [26] and nanooptical biosensors. [21,23] Here, we experimentally demonstrate directional, excitonpolariton photoluminescence emission channeled from a single, vertical organic nanowire through a plasmonic leaky channel of gold thin film. Figure 1 shows the conceptual schematic of the experiment. The tip of a vertically oriented organic semiconducting nanowire made of di-amino-anthraquinone (DAAQ) molecules is excited by a tightly focused laser beam at 532 nm wavelength. This excitation wavelength is close Hybrid nanophotonic devices compr...

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When excitons and plasmons meet: Emerging function through synthesis and assembly

Cited by 16 publications

References 127 publications

Metal–Semiconductor Nanoparticle Hybrids Formed by Self-Organization: A Platform to Address Exciton–Plasmon Coupling

Metal–Semiconductor Nanoparticle Hybrids Formed by Self-Organization: A Platform to Address Exciton–Plasmon Coupling

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

Radiative Channeling of Nanowire Frenkel Exciton Polaritons through Surface Plasmons

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