Conical diffraction in atomic vapor: Mathematical models and numerical calculations

•Our paper reports on conical diffraction characteristics in a Λ-type three-level energy system of rubidium atomic configuration.•The rotation angle θ of the three vectors strongly impacted the cone diffraction profile.•The occurrence of cone diffraction can be modulated via frequency detuning of th...

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Bibliographic Details
Published in:Results in physics 2023-10, Vol.53, p.107000, Article 107000
Main Authors: Zhang, Yidan, Luo, Hao, Li, Peng, Che, Junling, Gu, Yuzong, Wu, Zhenkun
Format: Article
Language:English
Subjects:
Atomic configuration
Dirac cone
High-order nonlinearity
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Summary:•Our paper reports on conical diffraction characteristics in a Λ-type three-level energy system of rubidium atomic configuration.•The rotation angle θ of the three vectors strongly impacted the cone diffraction profile.•The occurrence of cone diffraction can be modulated via frequency detuning of the coupling field.•We also consider the affect of high-order nonlinear susceptibilities in the medium. This study investigated the conical diffraction characteristics in the honeycomb lattice of a Λ-type three-level energy system for rubidium atomic configuration. Its band structure incorporates Dirac cones in accordance with the plane wave expansion method. We determined that the rotation angle θ of the three vectors strongly impacted the cone diffraction profile. For θ=0° and 60°, in the reciprocal lattice space, the Dirac cone states were excited, and symmetric cone diffraction was supported. When 0
ISSN:2211-3797
2211-3797
DOI:10.1016/j.rinp.2023.107000