Table of Contents
Materials, Volume 11, Issue 3 (March 2018) – 128 articles
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Cover Story (view full-size image) Complex plasmonic nanocomposites have a great potential in a wide range of applications ranging [...] Read more. Complex plasmonic nanocomposites have a great potential in a wide range of applications ranging from photonics and photovoltaics, to catalysis for environmental issues such as water remediation. Indeed, the evolution of nanofabrication techniques, which have radically improved in the past decades, allows the synthesis of ever more advanced structures presenting very complex geometries. However, accurately modeling the optical properties of such systems, which are often beyond the capabilities of exact numerical methods, can still be challenging. In this context, we propose an original, semi-analytical approach that combines RCWA (rigorous coupled wave analysis) with advanced effective medium theory to address the problem. To validate our approach, we test it using experimental measurements realized on plasmonic nanoparticles periodically distributed in structured polymer thin films. In particular, we show that it is possible to retrieve the specific features of these original gratings,