Apeiron Arche on Instagram: "#107 — Non-Reciprocal Optical Isolator Materials Light normally behaves symmetrically — if it can travel forward through a material, it can also travel backward along the same path. Non-reciprocal optical materials deliberately break this symmetry, allowing light to pass in one direction while blocking or redirecting it in the reverse direction. This is achieved using magnetic biasing or time-dependent structures that change how light interacts with the medium depend