激光与光电子学进展, 2013, 50 (12): 121404, 网络出版: 2013-11-13   

共振原子选择反射艾里光束的自愈

Self-Healing of Selectively Reflected Airy Beam from Resonant Atoms
作者单位
1 西安文理学院 应用物理研究所, 陕西 西安 710065
2 西安交通大学 电子物理与器件教育部重点实验室, 陕西 西安 710049
3 西安交通大学 纳米薄膜与生物材料研究中心, 陕西 西安 710049
摘要
研究了囚禁于两电介质面间级联三能级原子的选择反射(SR)艾里光束的自愈现象。建立了计算电介质与共振原子界面处艾里光束SR光谱的理论模型并进行了数值模拟。研究结果表明探测艾里光束在法向及斜入射的情形下其选择反射光束均表现出自愈行为, 法向入射情形下出现了很大的间断。研究还发现, 探测光的失谐量及耦合光的强度均可调制SR艾里光束的光谱, 其调制来自于原子辐射的各向异性、增强或减弱。强耦合光产生的原子缀饰态相干效应及交流斯塔克效应是原子辐射增强或减弱的主要原因。这种SR艾里光束在共振粒子特性的空间探测、共振粒子的操控及光信息存储与通信等方面具有潜在的应用价值。
Abstract
Self-healing of selectively reflected (SR) Airy beam from cascade three-level atoms sandwiched between two dielectric walls is investigated. A theoretical model is developed to calculate SR Airy beam at an interface between dielectric and resonant atoms. Numerical simulation is also implemented, and the result shows that self-healed SR beams can be found both at normal and oblique incidence of the probe field, although there is a severe breakdown in the former case. We also show that the spectrum of the SR beams can be dramatically modified by the probe detuning and the coupling strength from the anisotropic behavior, enhancement and suppression of atomic radiation. The enhancement and the suppression are mainly from the interference and the alternating current (AC)-Stark splitting between dressed states created by the coupling field. These types of SR beams can have potential applications in the spatial detection and manipulation of resonant particles, as well as the optical storage and communication of information.

李莉, 赵小侠, 朱君凡, 李院院, 张贻齐, 张彦鹏, 徐可为. 共振原子选择反射艾里光束的自愈[J]. 激光与光电子学进展, 2013, 50(12): 121404. Li Li, Zhao Xiaoxia, Zhu Junfan, Li Yuanyuan, Zhang Yiqi, Zhang Yanpeng, Xu Kewei. Self-Healing of Selectively Reflected Airy Beam from Resonant Atoms[J]. Laser & Optoelectronics Progress, 2013, 50(12): 121404.

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