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3 October 2022 Extreme light scattering and extraordinary nonlinearities in complex nanophotonic systems
Otto L. Muskens, Luke Burke, Haobijam J. Singh, Doxi Misatziou, Peter R Wiecha, Antonios Kanaras, Idris Ajia
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Proceedings Volume PC12196, Active Photonic Platforms 2022; PC121961E (2022) https://doi.org/10.1117/12.2634022
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
I present recent results exploring the domain of multiple interactions in strongly scattering nanophotonic systems in the cross-over from effective medium to complex regime. We work along three main thrusts, which are firstly the fabrication of new materials with ‘extreme’ properties, secondly the precise characterisation of these materials using state of the art techniques (and in doing so push for the most extreme materials systems), and finally using these optimised materials in a series of completely new and original experiments in the nonlinear regime. Results presented here include new effective dielectric resonators obtained by micrometer-sized supercrystals synthesized using gold nanoparticle - DNA hybrids. We study the basic properties of these intriguing assemblies at the single nanocrystal level using spectral imaging. Second, we investigate the interactions in 2D oligomers of silicon Mie resonators in the presence of disorder to elucidate the effects of electric and magnetic dipole coupling and their sensitivity to disorder. Thirdly, we present investigations of ultrafast time dynamics in the light transport through complex media, giving rise to extraordinary nonlinearities mediated by multiple scattering.
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Otto L. Muskens, Luke Burke, Haobijam J. Singh, Doxi Misatziou, Peter R Wiecha, Antonios Kanaras, and Idris Ajia "Extreme light scattering and extraordinary nonlinearities in complex nanophotonic systems", Proc. SPIE PC12196, Active Photonic Platforms 2022, PC121961E (3 October 2022); https://doi.org/10.1117/12.2634022
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KEYWORDS
Complex systems
Light scattering
Nanophotonics
Resonators
Multiple scattering
Nanocrystals
Nanoparticles
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