2021/11/30 by Miguel Castillo, C. Estévez-Varela, Castillo, Miguel A. +11 · 1 citation
Computer Science · Engineering · Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Neural Networks and Reservoir Computing #Optics (physics.optics) #Perovskite Materials and Applications #Strong Light-Matter Interactions
paper · pdf · doi:10.48550/arxiv.2111.15284
openalex publication_date 2021/11/30 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28
Natural photosynthetic photonic nanostructures can show sophisticated light\nmatter-interactions including enhanced light absorption by slow light even for\nhighly pigmented systems. Beyond fundamental biology aspects these natural\nnanostructures are very attractive as blueprints for advanced photonic devices.\nBut the soft-matter biomimetic implementations of such nanostructures is\nchallenging due to the low refractive index contrast of most organic photonic\nstructures. Excitonic organic material with near zero index (NZI) optical\nproperties allow overcoming these bottlenecks. Here we demonstrate that the\ncombination of NZI thin films into photonic multilayers like the ones found in\nnature enables broadband tuneable strong reflectance as well as slow light\nabsorption enhancement and tailored photoluminescence properties in the full\nVIS spectrum. Moreover, it is shown that this complex optical response is\ntuneable, paving the way towards the development of active devices based on all\npolymer and near zero index materials photonic structures.\n