Exploration of responsive photonic arrays fabricated by two photon lithography

Abstract

Responsive hydrogel photonic structures were fabricated using two-photon lithography. The design versatility of two-photon lithography provides for unprecedented manipulation of transmittance and reflectance spectra, producing distinct structural color. Hydrogel photonic structures have potential for wide range applications, in this instance we demonstrate examples of color transformation, reversible vapor sensing, and pH detection.