LAUSR

We study the structure of the elementary excitations and their propagation in chiral hybrid structure, comprising an array of two-level systems (TLSs) coupled to a one-dimensional photonic waveguide. The chirality is achieved via spin-locking effect, which in an ideal case gives perfect unidirectional excitation transport.We show that the application of transversemagnetic fieldwhichmixes the corresponding levels in TLS results in the emergence of the slow lightmode in the photonic spectrum. Finally, we demonstrate the protocols of writing the signal to the slow lightmode aswell as reading it outwith ultrashort optical pulses, which opens new avenues for the realization of opticalmemory devices based on chiral optical systems.