GHz-rate optical phase shift in light-matter interaction-engineered, silicon-ferroelectric nematic liquid crystals.

ABSTRACT: Organic electro-optic materials have demonstrated promising performance in developing electro-optic phase shifters. Their integration with other silicon photonic processes, nanofabrication complexities, and durability remains to be developed. While the required poling step in electro-optic polymers limits their potential and large-scale utilization, devices made of paraelectric nematic liquid crystals suffer from slow bandwidth. In ferroelectric nematic liquid crystals, we report an additional GHz-fast phase shift that ultimately allows for significant second-order nonlinear optical coefficients related to the Pockels effect. It avoids poling issues and can pave the way for hybrid silicon-organic systems with CMOS foundry compatibility. We report DC and AC modulation efficiencies of  ≈ 0.2

SUBMITTER: Taghavi I 

PROVIDER: S-EPMC12504419 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature