Dynamical manipulation of optical non⁃reciprocal reflection based on spontaneously generated coherence

doi:10.3969/j.issn.1007-5461.2026.01.009

Abstract

Abstract: Optical non-reciprocity is the core technology to realize novel photonic devices such as all-optical diodes and chip isolators. These devices are easy to integrate due to their high efficiency and stability, especially in quantum computing and information processing. In this work, we propose a system that the uniformly distributed cold atoms are driven into a three-level Lambda coherent atomic system by a strong coupling field and a weak probe field. In order to achieve the non-reciprocal reflection, the intensity of the coupling field is set to vary linearly with position to destroy the spatial symmetry of susceptibility. In addition, we further consider the modulation of the non-reciprocal reflection in the probe field by spontaneously generated coherence, as well as the influence of coupling field detuning on the non-reciprocal reflection.

Key words: quantum coherence, optical non-reciprocity, spontaneously generated coherence, non-reciprocial reflection, the relative phase, the dipole angle

CLC Number:

O431.2

GENG Yue, XU Qiongyi, PENG Chen, LI Guanrong, ZHANG Hanxiao, YANG Hong. Dynamical manipulation of optical non⁃reciprocal reflection based on spontaneously generated coherence[J]. Chinese Journal of Quantum Electronics, 2026, 43(1): 110-119.

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