VO₂ based polarization-independent dual-wavelength plasmonic switches using U and C shaped nanostructures.

ABSTRACT: We have proposed vanadium dioxide (VO₂) based polarization-independent dual-wavelength plasmonic switches using a periodic combination of U and C shaped gold nanostructures on a gold coated silicon dioxide (SiO₂) substrate with a thin VO₂ film as spacer between the nanostructures and the underlying substrate. A spatial offset between the two nanostructures is taken such that high switching efficiency is obtained simultaneously at two wavelengths for all polarization angles of incident light. The switching mechanism is based on the transformation of the phase change material, VO₂, from its monoclinic semiconductor state to its tetragonal metal state when exposed to an external stimulus. This transformation leads to a significant change in the opti

SUBMITTER: Dalal K 

PROVIDER: S-EPMC11787348 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature