Effectively modulating spatial vortex four-wave mixing in a diamond atomic system

Due to the spatial characteristics of orbital angular momentum, vortex fields can be applied in the fields of quantum storage and quantum information. We study the realization of spatially modulated vortex fields based on four-wave mixing in a four-level atomic system with a diamond structure. The i...

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Veröffentlicht in:Chinese physics B 2024-03, Vol.33 (4), p.44202
Hauptverfasser: Ba, Nuo, Jiang, Ming-Qi, Fei, Jin-You, Wang, Dan, Jiang, Hai-Lin, Wang, Lei, Wang, Hai-Hua
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Sprache:eng
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Zusammenfassung:Due to the spatial characteristics of orbital angular momentum, vortex fields can be applied in the fields of quantum storage and quantum information. We study the realization of spatially modulated vortex fields based on four-wave mixing in a four-level atomic system with a diamond structure. The intensity and spiral phase of the vortex field are effectively transferred to the generated four-wave mixing field. By changing the detuning of the probe field, the phase and intensity of the generated vertex four-wave mixing field can be changed. When the probe field takes a large detuning value, the spatial distribution of the intensity and phase of the vertex four-wave mixing field can be effectively tuned by adjusting the Rabi frequency or detuning value of the coupled field. At the same time, we also provide a detailed explanation based on the dispersion relationship, and the results agree well with our simulation results.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/ad0771