Excitation Enhancement of a Quantum Dot Coupled to a Plasmonic Antenna
E. Bermudez Urena, M. P. Kreuzer, S. Itzhakov, H. Rigneault, R., Quidant, D. Oron, J. Wenger
TL;DR
This paper investigates how a gold dimer plasmonic antenna enhances the excitation and luminescence of a quantum dot, providing detailed analysis to separate the effects of excitation enhancement from quenching losses.
Contribution
It offers a detailed analysis of the quantum dot's luminescence coupled to a plasmonic antenna, quantifying excitation enhancement and quantum yield separately.
Findings
A gold dimer antenna increases quantum dot excitation intensity.
The antenna's influence on luminescence quantum yield is quantified.
Separate effects of excitation enhancement and quenching are analyzed.
Abstract
Plasmonic antennas are key elements to control the luminescence of quantum emitters. However, the antenna's influence is often hidden by quenching losses. Here, the luminescence of a quantum dot coupled to a gold dimer antenna is investigated. Detailed analysis of the multiply excited states quantifies the antenna's influence on the excitation intensity and the luminescence quantum yield separately.
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