Abstract

In this work, a multiple electromagnetically induced grating is realized based on multiple electromagnetically induced transparency in the $^{85}{\rm Rb}$ five-level atomic medium. We demonstrate that the diffraction pattern of the probe light field is observed at three different frequency regions corresponding to the three transparent spectral regions of the system. The influence of the intensity and frequency of the coupling laser field on the diffraction pattern of the electromagnetically induced grating and its diffraction efficiency is also investigated, which can find the optimal parameters to improve the higher-order diffraction efficiencies. The appearance of the multiple electromagnetically induced grating in multi-level atomic systems can be applied to photonic devices operating with multiple frequency channels.

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