中国物理B ›› 2024, Vol. 33 ›› Issue (4): 44202-044202.doi: 10.1088/1674-1056/ad0771
Nuo Ba(巴诺)1,†, Ming-Qi Jiang(姜明奇)1, Jin-You Fei(费金友)1, Dan Wang(王丹)1, Hai-Lin Jiang(蒋海林)2, Lei Wang(王磊)2,‡, and Hai-Hua Wang(王海华)2
Nuo Ba(巴诺)1,†, Ming-Qi Jiang(姜明奇)1, Jin-You Fei(费金友)1, Dan Wang(王丹)1, Hai-Lin Jiang(蒋海林)2, Lei Wang(王磊)2,‡, and Hai-Hua Wang(王海华)2
摘要: 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.
中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)