This work introduces a novel three-channel on-chip hollow-core waveguide design operating via the anti-resonant effect. To analyze the modal behavior, inter-channel coupling, and polarization-dependent losses, detailed finite element method (FEM) simulations were performed using JCMsuite. The numerical simulations were essential for understanding the underlying physical principles and guided the experimental validation of the nanoprinted structures.
D. Pereira, et al. On-chip hollow-core waveguides with integrated anti-resonant channels, enabled by 3D nanoprinting. Opt. Express, 33, 30136 (2025).
DOI: 10.1364/OE.559217