Cavity-assisted ultrafast long-range periodic energy transfer between plasmonic nanoantennas

Aeschlimann, Martin; Brixner, Tobias; Cinchetti, Mirko; Frisch, Benjamin; Hecht, Bert; Hensen, Matthias; Huber, Bernhard; Krämer, Christian; Krauss, Enno; Loeber, Thomas H; Pfeiffer, Walter; Piecuch, Martin; Thielen, Philip

doi:10.1038/lsa.2017.111

Cited by 37 publications

(43 citation statements)

References 30 publications

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“…This is a pure signature of FRET, highlighting the fundamental difference with far-field radiative energy transfer. [53][54][55][56][57] In a second set of experiments, we investigate dsDNA constructs with 10.2 nm D-A separation ( Fig. 3b,d).…”

Section: Resultsmentioning

confidence: 99%

“…Actually, most cases consider short donor-acceptor separations (on the order or below the Förster radius) in order to ease the optical detection. 23,25,36,37,46,47,52 It should be acknowledged that long range energy transfer over distances up to several micrometers has been reported, [53][54][55][56][57][58] but these studies are based on radiative dipole-dipole coupling (i.e. energy transfer mediated by a propagating photon or plasmon in the far field).…”

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confidence: 99%

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Extending Single-Molecule Förster Resonance Energy Transfer (FRET) Range beyond 10 Nanometers in Zero-Mode Waveguides

et al. 2019

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Single molecule Förster resonance energy transfer (smFRET) is widely used to monitor conformations and interactions dynamics at the molecular level. However, conventional smFRET measurements are ineffective at donor-acceptor distances exceeding 10 nm, impeding the studies on biomolecules of larger size. Here, we show that zero-mode waveguide (ZMW) apertures can be used to overcome the 10 nm barrier in smFRET. Using an optimized ZMW structure, we demonstrate smFRET between standard commercial fluorophores up to 13.6 nm distance with a significantly improved FRET efficiency. To further break into the classical FRET range limit, ZMWs are combined with molecular constructs featuring multiple acceptor dyes to achieve high FRET efficiencies together with high fluorescence count rates. As we discuss general guidelines for quantitative smFRET measurements inside ZMWs, the technique can be readily applied for monitoring conformations and interactions on large molecular complexes with enhanced brightness.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Extending Single-Molecule Förster Resonance Energy Transfer (FRET) Range beyond 10 Nanometers in Zero-Mode Waveguides

et al. 2019

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“…Additionally, collective effects may also play a non-negligible role in FRET [68]. This phenomenon appears also very promising to couple efficiently molecular emitters and antennas over long distances exceeding several wavelengths [69,70].…”

Section: Discussionmentioning

confidence: 99%

Direct Imaging of the Energy-Transfer Enhancement between Two Dipoles in a Photonic Cavity

et al. 2019

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Photonic cavities are gathering a large interest to enhance the energy transfer between two dipoles, with far-reaching consequences for applications in photovoltaics, lighting sources and molecular biosensing. However, experimental difficulties in controlling the dipoles' positions, orientations and spectra have limited the earlier work in the visible part of the spectrum, and have led to inconsistent results. Here, we directly map the energy transfer of microwaves between two dipoles inside a resonant half-wavelength cavity with ultrahigh control in space and frequency. Our approach extends Förster resonance energy transfer (FRET) theory to microwave frequencies, and bridges the gap between the descriptions of FRET using quantum electrodynamics and microwave engineering. Beyond the conceptual interest, we show how this approach can be used to optimize the design of photonic cavities to enhance dipole-dipole interactions and FRET. I.

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“…Before concluding, we would like to discuss briefly a direction of research that is likely to be probed in the near future, and was so far only discussed theoretically [151][152][153], namely the quantum entanglement of two or more QDs within a PC. In the strong coupling regime, there is a periodic exchange of energy between the QD and the SP.…”

Section: Discussionmentioning

confidence: 99%

Quantum dot plasmonics: from weak to strong coupling

2019

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The complementary optical properties of surface plasmon excitations of metal nanostructures and long-lived excitations of semiconductor quantum dots (QDs) make them excellent candidates for studies of optical coupling at the nanoscale level. Plasmonic devices confine light to nanometer-sized regions of space, which turns them into effective cavities for quantum emitters. QDs possess large oscillator strengths and high photostability, making them useful for studies down to the single-particle level. Depending on structure and energy scales, QD excitons and surface plasmons (SPs) can couple either weakly or strongly, resulting in different unique optical properties. While in the weak coupling regime plasmonic cavities (PCs) mostly enhance the radiative rate of an emitter, in the strong coupling regime the energy level of the two systems mix together, forming coupled matter-light states. The interaction of QD excitons with PCs has been widely investigated experimentally as well as theoretically, with an eye on potential applications ranging from sensing to quantum information technology. In this review we provide a comprehensive introduction to this exciting field of current research, and an overview of studies of QD-plasmon systems in the weak and strong coupling regimes.

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Cavity-assisted ultrafast long-range periodic energy transfer between plasmonic nanoantennas

Cited by 37 publications

References 30 publications

Extending Single-Molecule Förster Resonance Energy Transfer (FRET) Range beyond 10 Nanometers in Zero-Mode Waveguides

Extending Single-Molecule Förster Resonance Energy Transfer (FRET) Range beyond 10 Nanometers in Zero-Mode Waveguides

Direct Imaging of the Energy-Transfer Enhancement between Two Dipoles in a Photonic Cavity

Quantum dot plasmonics: from weak to strong coupling

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