Theory of Three-Dimensional Nanocrescent Light Harvesters
Fernández-Domínguez, A. I.
Pendry, J. B.
Maier, Stefan A.
Date of Issue2012
School of Electrical and Electronic Engineering
The optical properties of three-dimensional crescent-shaped gold nanoparticles are studied using a transformation optics methodology. The polarization insensitive, highly efficient, and tunable light harvesting ability of singular nanocrescents is demonstrated. We extend our approach to more realistic blunt nanostructures, showing the robustness of their plasmonic performance against geometric imperfections. Finally, we provide analytical and numerical insights into the sensitivity of the device to radiative losses and nonlocal effects. Our theoretical findings reveal an underlying relation between structural bluntness and spatial dispersion in this particular nanoparticle configuration.
© 2012 American Chemical Society (ACS). This is the author created version of a work that has been peer reviewed and accepted for publication by Nano Letters, American Chemical Society (ACS). It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/nl303377g].