Aperiodic nanoplasmonic devices for directional colour filtering and sensing.

ABSTRACT: Exploiting the wave-nature of light in its simplest form, periodic architectures have enabled a panoply of tunable optical devices with the ability to perform useful functions such as filtering, spectroscopy, and multiplexing. Here, we remove the constraint of structural periodicity to enhance, simultaneously, the performance and functionality of passive plasmonic devices operating at optical frequencies. By using a physically intuitive, first-order interference model of plasmon-light interactions, we demonstrate a simple and efficient route towards designing devices with flexible, multi-spectral optical response, fundamentally not achievable using periodic architectures. Leveraging this approach, we experimentally implement ultra-compact directional light-filters and colour-sorters exhibi

SUBMITTER: Davis MS 

PROVIDER: S-EPMC5676867 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature