期刊
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
卷 38, 期 2, 页码 576-583出版社
Optica Publishing Group
DOI: 10.1364/JOSAB.411507
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资金
- Institut de physique
- European Regional Development Fund (program Optiflex)
- Conseil regional de Bourgogne-Franche-Comte (program APEX)
- Delegation Regionale a la Recherche et a la Technologie
- Agence Nationale de la Recherche (EIPHI Graduate School) [ANR-17-EURE-0002]
The report investigates the statistical temporal distribution of nonlinear upconverted photoluminescence emitted by gold and silver nanostructures excited by focused near-infrared laser pulses. Regardless of the nano-object's geometry, material's crystalline arrangement, and electronic band structure, a clear signature of photon bunching is systematically observed. The correlation of photons at a picosecond time scale released by nanoscale nonlinear sources of broadband radiation may be used in developing new data processing functionalities in plasmonic devices.
In this report, we investigate the statistical temporal distribution of nonlinear upconverted photoluminescence emitted by gold and silver nanostructures excited by focused near-infrared laser pulses. We systematically observe a dear signature of photon bunching regardless of the nano-object's geometry, material's crystalline arrangement, and electronic band structure. The similarity of the data obtained across very different plasmonic objects confirms that these types of nonlinear radiation share a common chaotic origin and result from a collection of emitters. The correlation of photons at a picosecond time scale released by nanoscale nonlinear sources of broadband radiation may be used in plasmonic devices to develop new data temporal and spatial processing functionalities. (C) 2021 Optical Society of America
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