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3 August 2021 Active photonic platforms with structured nanoarrays
Rana Biswas, Akshit Peer
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Proceedings Volume 11796, Active Photonic Platforms XIII; 117960H (2021) https://doi.org/10.1117/12.2594014
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
We describe active photonic platforms based on structured nano-arrays with periodicities in optical dimensions. Nanocup arrays coated with continuous non-conformal gold films were fabricated with replica molding and simulated with scattering matrix simulations. These exhibit extraordinary optical transmission (EOT) due to the optically thin gold film at the nanocup bottom. The optically enhanced field in nanocups enhanced the spontaneous emission of embedded quantum dots, with Purcell factor enhancements by >80 and measured photoluminescence lifetimes decreased by a factor of ~5 for a quantum dots ensemble. Soluble coatings on these nanocups showed slowed release rates, useful for biomedical applications. Nano-arrays control active light-emission, and surface charging and have promise for diverse nanoplasmonic applications.
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Rana Biswas and Akshit Peer "Active photonic platforms with structured nanoarrays", Proc. SPIE 11796, Active Photonic Platforms XIII, 117960H (3 August 2021); https://doi.org/10.1117/12.2594014
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KEYWORDS
Photonic nanostructures
Gold
Lithography
Metals
Polymers
Quantum dots
Thin films
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