Hyperchromatic structural color for perceptually enhanced sensing by the naked eye.

ABSTRACT: Colorimetric sensors offer the prospect for on-demand sensing diagnostics in simple and low-cost form factors, enabling rapid spatiotemporal inspection by digital cameras or the naked eye. However, realizing strong dynamic color variations in response to small changes in sample properties has remained a considerable challenge, which is often pursued through the use of highly responsive materials under broadband illumination. In this work, we demonstrate a general colorimetric sensing technique that overcomes the performance limitations of existing chromatic and luminance-based sensing techniques. Our approach combines structural color optical filters as sensing elements alongside a multichromatic laser illuminant. We experimentally demonstrate our approach in the context of label-free bios

SUBMITTER: Talukdar TH 

PROVIDER: S-EPMC7720187 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature