Modified emission of extended light emitting layers by selective coupling to collective lattice resonances

Ramezani, Mohammad; Lozano, Gabriel; Verschuuren, Marc A.; Gómez-Rivas, Jaime

doi:10.1103/physrevb.94.125406

Cited by 63 publications

(63 citation statements)

References 37 publications

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“…Therefore, the strong modification of the spectral shape is caused by the modification of the emission rate of Si-QDs due to the coupling with surface plasmons in the plasmonic substrates. 37 Similar data obtained for 641 nm excitations are summarized in the supplementary material (Fig. S4).…”

Section: Resultssupporting

confidence: 69%

Photoluminescence enhancement of silicon quantum dot monolayer by plasmonic substrate fabricated by nano-imprint lithography

Yanagawa

Inoue

Sugimoto

et al. 2017

Journal of Applied Physics

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Near-field coupling between a silicon quantum dot (Si-QD) monolayer and a plasmonic substrate fabricated by nano-imprint lithography and having broad multiple resonances in the near-infrared (NIR) window of biological substances was studied by precisely controlling the QDs-substrate distance. A strong enhancement of the NIR photoluminescence (PL) of Si-QDs was observed. Detailed analyses of the PL and PL excitation spectra, the PL decay dynamics, and the reflectance spectra revealed that both the excitation cross-sections and the emission rates are enhanced by the surface plasmon resonances, thanks to the broad multiple resonances of the plasmonic substrate, and that the relative contribution of the two enhancement processes depends strongly on the excitation wavelength. Under excitation by short wavelength photons (405 nm), where enhancement of the excitation cross-section is not expected, the maximum enhancement was obtained when the QDs-substrate distance was around 30 nm. On the other hand, under long wavelength excitation (641 nm), where strong excitation cross-section enhancement is expected, the largest enhancement was obtained when the distance was minimum (around 1 nm). The achievement of efficient excitation of NIR luminescence of Si-QDs by long wavelength photons paves the way for the development of Si-QD-based fluorescence bio-sensing devices with a high bound-to-free ratio.

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Section: Resultssupporting

confidence: 69%

Photoluminescence enhancement of silicon quantum dot monolayer by plasmonic substrate fabricated by nano-imprint lithography

Yanagawa

Inoue

Sugimoto

et al. 2017

Journal of Applied Physics

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“…[21], reproduced with permission from APS), (b) hexagonal symmetry made of aluminum nanoparticles with pitch size of 475 (Ref. [62], reproduced with permission from APS), and (c) rectangular symmetry made of silver nanoparticles with pitch sizes of 380 and 200 nm (Ref. [63], reproduced with permission from OSA).…”

Section: Surface Lattice Resonancesmentioning

confidence: 99%

Strong light–matter coupling and exciton-polariton condensation in lattices of plasmonic nanoparticles [Invited]

2019

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“…15 SLRs arise from the coherent radiative coupling of LSPs of individual nanoparticles with diffractive modes propagating in the plane of the array, the so-called Rayleigh anomalies, [16][17][18] and are characterized by a strong suppression of losses (higher quality factor) with respect to individual nanoparticle LSPs, at the expense of a less confined electromagnetic field (larger mode volume). 16,19,20 As hybrid modes arising from a coherent coupling of LSPs, SLRs can maintain the strong EM field enhancement typical of plasmonic nanoparticles, 21,22 while simultaneously extending over the whole lattice area. PEPs in 2D lattices have shown peculiar features due to the unique dispersion of SLRs, [23][24][25][26] which make them similar to exciton polaritons in semiconductor microcavities.…”

Section: Abstract: Polaritons Plasmonics Plexcitons Bose-eistein Cmentioning

confidence: 99%

Interaction and Coherence of a Plasmon–Exciton Polariton Condensate

et al. 2018

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Polaritons are quasiparticles arising from the strong coupling of electromagnetic waves in cavities and dipolar oscillations in a material medium. In this framework, localized surface plasmon in metallic nanoparticles defining optical nanocavities have attracted increasing interests in the last decade. This interest results from their subdiffraction mode volume, which offers access to extremely high photonic densities by exploiting strong scattering cross-sections. However, high absorption losses in metals have hindered the observation of collective coherent phenomena, such as condensation. arXiv:1709.04803v2 [cond-mat.mtrl-sci]

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Modified emission of extended light emitting layers by selective coupling to collective lattice resonances

Cited by 63 publications

References 37 publications

Photoluminescence enhancement of silicon quantum dot monolayer by plasmonic substrate fabricated by nano-imprint lithography

Photoluminescence enhancement of silicon quantum dot monolayer by plasmonic substrate fabricated by nano-imprint lithography

Strong light–matter coupling and exciton-polariton condensation in lattices of plasmonic nanoparticles [Invited]

Interaction and Coherence of a Plasmon–Exciton Polariton Condensate

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