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Accueil › Scientific publications › Direct Imaging of the Energy-Transfer Enhancement between Two Dipoles in a Photonic Cavity

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

mars 15, 2019

 

Direct Imaging of the Energy-Transfer Enhancement between Two Dipoles in a Photonic Cavity, Kaizad Rustomji, Marc Dubois, Boris Kuhlmey, C. Martijn de Sterke, Stefan Enoch, Redha Abdeddaim, and Jérôme Wenger, Phys. Rev. X 9, 011041

Published 1 March 2019

DOI: https://doi.org/10.1103/PhysRevX.9.011041

Abstract :

Photonic cavities are gathering a large amount of 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.

mars 15, 2019

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This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 736937