Hybrid SiO₂/Si pillar-based optomechanical crystals for on-chip photonic integration.

ABSTRACT: One-dimensional photonic crystal (1D-PhC) pillar cavities allow transducing mechanical pillar vibrations to the optical domain, thereby relaxing the requirements typically associated with mechanical motion detection. In this study, we integrate these geometries into a silicon-on-insulator photonics platform and explore their optical and mechanical properties. The 1D-PhC structures consist of a linear array of high aspect ratio nanopillars with nanometer-sized diameters, designed to enhance the interaction between transverse-magnetic (TM) polarized optical fields and mechanical vibrations and to minimize optical leaking to the substrate. Integrated waveguides are engineered to support TM-like modes, which enable optimized coupling to the 1D-PhC optical cavity modes via evanescent wave inter

SUBMITTER: Poblet M 

PROVIDER: S-EPMC12397729 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature