Qi, C.; Zheng, J.; Tong, Y.; Li, R.; Wang, D.; Huang, L.; Zhou, H. Cavity-Induced Optical Nonreciprocity Based on Degenerate Two-Level Atoms. Preprints2024, 2024061244. https://doi.org/10.20944/preprints202406.1244.v1
APA Style
Qi, C., Zheng, J., Tong, Y., Li, R., Wang, D., Huang, L., & Zhou, H. (2024). Cavity-Induced Optical Nonreciprocity Based on Degenerate Two-Level Atoms. Preprints. https://doi.org/10.20944/preprints202406.1244.v1
Chicago/Turabian Style
Qi, C., Lianghui Huang and Haitao Zhou. 2024 "Cavity-Induced Optical Nonreciprocity Based on Degenerate Two-Level Atoms" Preprints. https://doi.org/10.20944/preprints202406.1244.v1
Abstract
We propose and experimentally realize a scheme of the optical nonreciprocity (ONR) using degenerate two-level atoms embedded in an optical ring cavity. For the degenerate transition Fg=4→Fe=3, we first study the cavity-transmission property in different coupling field, and verify that within the strong-coupling regime, the single-dark-state peak formed by electromagnetically induced transparency (EIT) shows ONR. Qualitative theoretical analysis shows that the stable ground-state Zeeman coherence is necessary for intracavity EIT. However, due to the frequency degeneracy, the large Rabi frequency of counter-propagating coupling field can reduce the number of effective atoms and weaken the strong-coupling of the atom-cavity, which determines that ONR based on intracavity EIT occurs only at weaker probe intensity. Furthermore, the ONR transmission with high contrast, linewidth-narrowed and broadband is experimentally demonstrated.
Keywords
optical nonreciprocity; single dark-state peak; degenerate two-level; strong-coupling
Subject
Physical Sciences, Optics and Photonics
Copyright:
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