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Type: 
Journal
Description: 
Novel optical sources require fast decay rates, making hyperbolic metamaterials (HMMs) an increasingly attractive option. HMMs are well‐known for their remarkable anisotropy, and leverage hyperbolic dispersion to enhance the decay rate of a fluorophore placed on top of them. This study tackles the complex task of embedding a fluorophore into an HMM, successfully overcoming challenges related to surface roughness, thickness imperfections, and layer washing effects. Specifically, CsPbBr3 perovskite nanocrystals (NCs)‐based HMM are fabricated, by alternating silver/nanocrystals (Ag/NCs) layers. Through a systematic investigation of the photophysical response following the deposition of each bilayer, compelling evidence of the achievement of hyperbolic dispersion is provided. Specifically, the impact of “high‐k” modes is isolated, which is distinctive to the HMM architecture. Therefore, the longstanding …
Publisher: 
Publication date: 
1 Jan 2024
Authors: 

Vincenzo Caligiuri, Svetlana Siprova, Nicolas Godbert, Massimo Moccia, Giulia Biffi, Roberto Termine, Gianluca Balestra, Massimo Cuscunà, Maria Laura Amoruso, Mario Scuderi, Vincenzo Galdi, Attilio Golemme, Iolinda Aiello, Antonio De Luca

Biblio References: 
Pages: 2301156
Origin: 
Laser & Photonics Reviews