Dynamic selection of visible wavelengths using resonant TiO₂ nanostructures.

ABSTRACT: All-dielectric nanoarrays have strong electromagnetic resonances with various interesting applications and are tuned by adjusting their geometrical parameters. However, their optical properties are permanently encoded during fabrication. This study presents robust dynamically tunable all-dielectric nanoresonators for controllable, reversible, and reproducible color filtering. Our design uses an array of TiO₂ nanodiscs embedded in a transparent, stretchable polydimethylsiloxane (PDMS) membrane and exhibits a narrow spectral response due to Mie magnetic and electric dipole resonances hybridized with the TiO₂ nanodiscs lattice modes. By mechanically stretching the PDMS membrane, the pitch of the TiO₂ nanodiscs was increased and the spectral location of the res

SUBMITTER: Um HD 

PROVIDER: S-EPMC11501797 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature