▎ 摘　　要

Over the past decade, researchers have developed numerous techniques to realize a tunable delay line based on slow light phenomena. In principle, slow light is achieved by tailoring an enhanced group-index resonance within a nonlinear medium. In this paper, we explain the physics behind this technique and we describe the theoretical realization. We have systematically investigated and report a tunable slow and fast light device and the single-dark, double-dark resonances conditions based on a graphene monolayer system under an external magnetic field driven by an elliptically polarized probe and coherent pumping fields based quantum interference effect in infrared region. The unique linear and massless band structure of graphene in a purely two-dimensional Dirac fermionic structure has led to intense research in fields ranging from condensed matter physics to nanoscale device applications covering the electrical, thermal, mechanical and optical domains. These results demonstrate the enhancement of optical delay technology based on graphene monolayer system introduces a wealth of applications in telecommunications, data processing, light-matter interactions and nonophotonics devices recently.