This work presents the design of a chiral optical cavity for the infrared fingerprint region, tailored to maximize the dissymmetry between different light polarizations (helicities). The key component is an optimized silver helix with near-maximum electromagnetic chirality, which serves as a building block for the cavity mirrors. JCMsuite's finite element solver and its Bayesian optimization toolkit were used to compute the optical response and to optimize the geometry of the silver helix for maximum chirality.
L. Rebholz, et al. Chiral cavities made from lattices of highly electromagnetically-chiral scatterers. arXiv, 2507.10481 (2025).