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arXiv · 2309.17374

2D silver-nanoplatelets metasurface for bright directional photoluminescence, designed with the local Kirchhoff's law

Elise Bailly·Jean-Paul Hugonin·Jean-René Coudevylle·Corentin Dabard·Sandrine Ithurria·Benjamin Vest·Jean-Jacques Greffet
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Abstract

Semiconductor colloidal nanocrystals are excellent light emitters in terms of efficiency and spectral control. Integrating them with a metasurface would pave the way to ultrathin photoluminescent devices with reduced amount of active material and performing complex functionalities such as beam shaping or polarization control. To design such a metasurface, a quantitative model of the emitted power is needed. Here, we report the design, fabrication and characterization of a $\approx$ 300 nm thick light-emitting device combining a plasmonic metasurface with an ensemble of nanoplatelets. The source has been designed with a new methodology based on a local form of Kirchhoff's law. The source displays record high directionality and brightness.

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Elise Bailly, Jean-Paul Hugonin, Jean-René Coudevylle, Corentin Dabard, Sandrine Ithurria, Benjamin Vest, Jean-Jacques Greffet. 2023-09-29. 2D silver-nanoplatelets metasurface for bright directional photoluminescence, designed with the local Kirchhoff's law. https://arxiv.org/abs/2309.17374

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