期刊
OPTICS EXPRESS
卷 30, 期 10, 页码 17517-17528出版社
Optica Publishing Group
DOI: 10.1364/OE.456599
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资金
- Agence Nationale de la Recherche [ANR-15-IDEX-0003, ANR-17-EURE-0002, ANR-20-CE24-0001, ANR-21-ESRE-0040]
- European Regional Development Fund (FEDER-FSE Bourgogne 2014/2020)
- Conseil regional de Bourgogne-Franche-Comte
- Centre National de la Recherche Scientifique
- Agence Nationale de la Recherche (ANR) [ANR-21-ESRE-0040] Funding Source: Agence Nationale de la Recherche (ANR)
In this study, we aimed to control the spatial distribution of nonlinear photoluminescence in a micrometer-size crystalline gold flake. By changing the polarization orientation and implementing phase control, we successfully achieved the spatial redistribution of nonlinear photoluminescence within the structure.
We aim at controlling the spatial distribution of nonlinear photoluminescence in a shaped micrometer-size crystalline gold flake. Interestingly, the underlying surface plasmon modal landscape sustained by this mesoscopic structure can be advantageously used to generate nonlinear photoluminescence (nPL) in remote locations away from the excitation spot. By controlling the modal pattern, we show that the delocalized nonlinear photoluminescence intensity can be redistributed spatially. This is first accomplished by changing the polarization orientation of the pulsed laser excitation in order to select a subset of available surface plasmon modes within a continuum. We then propose a second approach to redistribute the nPL within the structure by implementing a phase control of the plasmon interference pattern arising from a coherent two-beam excitation. Control and engineering of the nonlinear photoluminescence spatial extension is a prerequisite for deploying the next generation of plasmonic-enabled integrated devices relying on hot carriers. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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