Spatial Coherence Properties of Organic Molecules Coupled to Plasmonic Surface Lattice Resonances in the Weak and Strong Coupling Regimes

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Spatial Coherence Properties of Organic Molecules Coupled to Plasmonic Surface Lattice Resonances in the Weak and Strong Coupling Regimes. / Shi, L.; Hakala, T; Rekola, H.T.; Martikainen, J.-P.; Moerland, R.J.; Törmä, Päivi.

In: Physical Review Letters, Vol. 112, No. 15, 153002, 18.04.2014, p. 1-5.

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@article{71f2fe7b52f943e0803fb090d3dd3fd1,
title = "Spatial Coherence Properties of Organic Molecules Coupled to Plasmonic Surface Lattice Resonances in the Weak and Strong Coupling Regimes",
abstract = "We study spatial coherence properties of a system composed of periodic silver nanoparticle arrays covered with a fluorescent organic molecule (DiD) film. The evolution of spatial coherence of this composite structure from the weak to the strong coupling regime is investigated by systematically varying the coupling strength between the localized DiD excitons and the collective, delocalized modes of the nanoparticle array known as surface lattice resonances. A gradual evolution of coherence from the weak to the strong coupling regime is observed, with the strong coupling features clearly visible in interference fringes. A high degree of spatial coherence is demonstrated in the strong coupling regime, even when the mode is very excitonlike (80{\%}), in contrast to the purely localized nature of molecular excitons. We show that coherence appears in proportion to the weight of the plasmonic component of the mode throughout the weak-to-strong coupling crossover, providing evidence for the hybrid nature of the normal modes.",
keywords = "plasmonics, spatial coherence, strong coupling, surface lattice resonances, plasmonics, spatial coherence, strong coupling, surface lattice resonances, plasmonics, spatial coherence, strong coupling, surface lattice resonances",
author = "L. Shi and T Hakala and H.T. Rekola and J.-P. Martikainen and R.J. Moerland and P{\"a}ivi T{\"o}rm{\"a}",
note = "| openaire: EC/FP7/340748/EU//CODE",
year = "2014",
month = "4",
day = "18",
doi = "10.1103/PhysRevLett.112.153002",
language = "English",
volume = "112",
pages = "1--5",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "15",

}

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TY - JOUR

T1 - Spatial Coherence Properties of Organic Molecules Coupled to Plasmonic Surface Lattice Resonances in the Weak and Strong Coupling Regimes

AU - Shi, L.

AU - Hakala, T

AU - Rekola, H.T.

AU - Martikainen, J.-P.

AU - Moerland, R.J.

AU - Törmä, Päivi

N1 - | openaire: EC/FP7/340748/EU//CODE

PY - 2014/4/18

Y1 - 2014/4/18

N2 - We study spatial coherence properties of a system composed of periodic silver nanoparticle arrays covered with a fluorescent organic molecule (DiD) film. The evolution of spatial coherence of this composite structure from the weak to the strong coupling regime is investigated by systematically varying the coupling strength between the localized DiD excitons and the collective, delocalized modes of the nanoparticle array known as surface lattice resonances. A gradual evolution of coherence from the weak to the strong coupling regime is observed, with the strong coupling features clearly visible in interference fringes. A high degree of spatial coherence is demonstrated in the strong coupling regime, even when the mode is very excitonlike (80%), in contrast to the purely localized nature of molecular excitons. We show that coherence appears in proportion to the weight of the plasmonic component of the mode throughout the weak-to-strong coupling crossover, providing evidence for the hybrid nature of the normal modes.

AB - We study spatial coherence properties of a system composed of periodic silver nanoparticle arrays covered with a fluorescent organic molecule (DiD) film. The evolution of spatial coherence of this composite structure from the weak to the strong coupling regime is investigated by systematically varying the coupling strength between the localized DiD excitons and the collective, delocalized modes of the nanoparticle array known as surface lattice resonances. A gradual evolution of coherence from the weak to the strong coupling regime is observed, with the strong coupling features clearly visible in interference fringes. A high degree of spatial coherence is demonstrated in the strong coupling regime, even when the mode is very excitonlike (80%), in contrast to the purely localized nature of molecular excitons. We show that coherence appears in proportion to the weight of the plasmonic component of the mode throughout the weak-to-strong coupling crossover, providing evidence for the hybrid nature of the normal modes.

KW - plasmonics

KW - spatial coherence

KW - strong coupling

KW - surface lattice resonances

KW - plasmonics

KW - spatial coherence

KW - strong coupling

KW - surface lattice resonances

KW - plasmonics

KW - spatial coherence

KW - strong coupling

KW - surface lattice resonances

UR - https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.153002

U2 - 10.1103/PhysRevLett.112.153002

DO - 10.1103/PhysRevLett.112.153002

M3 - Article

VL - 112

SP - 1

EP - 5

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 15

M1 - 153002

ER -

ID: 706491