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Antolinez, F.V.* ; Winkler, J.M.* ; Rohner, P.* ; Kress, S.J.P.* ; Keitel, R.C.* ; Kim, D.K.* ; Marques-Gallego, P.* ; Cui, J. ; Rabouw, F.T.* ; Poulikakos, D.* ; Norris, D.J.*

Defect-tolerant plasmonic elliptical resonators for long-range energy transfer.

ACS Nano 13, 9048-9056 (2019)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
Energy transfer allows energy to be moved from one quantum emitter to another. If this process follows the Forster mechanism, efficient transfer requires the emitters to be extremely close (<10 nm). To increase the transfer range, nanophotonic structures have been explored for photon- or plasmon-mediated energy transfer. Here, we fabricate high-quality silver plasmonic resonators to examine long-distance plasmon-mediated energy transfer. Specifically, we design elliptical resonators that allow energy transfer between the foci, which are separated by up to 10 mu m. The geometry of the ellipse guarantees that all plasmons emitted from one focus are collected and channeled through different paths to the other focus. Thus, energy can be transferred even if a micrometer-sized defect obstructs the direct path between the focal points. We characterize the spectral and spatial profiles of the resonator modes and show that these can be used to transfer energy between green- and red-emitting colloidal quantum dots printed with subwavelength accuracy using electrohydrodynamic nanodripping. Rate-equation modeling of the time-resolved fluorescence from the quantum dots further confirms the long-distance energy transfer.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Energy Transfer ; Colloidal Quantum Dots ; Surface Plasmon Polaritons ; Elliptical Resonator ; Plasmonics ; Electrohydrodynamic Printing; Quantum Dots; Transport; Nanowires; Emitters
Language english
Publication Year 2019
HGF-reported in Year 2019
ISSN (print) / ISBN 1936-0851
e-ISSN 1936-086X
Journal ACS Nano
Quellenangaben Volume: 13, Issue: 8, Pages: 9048-9056 Article Number: , Supplement: ,
Publisher American Chemical Society (ACS)
Publishing Place 1155 16th St, Nw, Washington, Dc 20036 Usa
Reviewing status Peer reviewed
Institute(s) Helmholtz Pioneer Campus (HPC)
POF-Topic(s) 30205 - Bioengineering and Digital Health
Research field(s) Pioneer Campus
PSP Element(s) G-510006-001
Erfassungsdatum 2019-10-07