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中文摘要：
提出一种利用Bessel光束与平面波叠加得到周期性局域空心光束（bottle beam）的新方法。利用菲涅尔积分衍射理论推导得到Bessel光束与平面波叠加的光场表达式，通过 Mathcad软件数值模拟两光场相干叠加的轴向和截面光强分布图，分析入射光束半径对局域空心光束的强度和周期的影响。结果表明：平面波与Bessel光束相干叠加能形成周期性的局域空心光束，随着光束半径的减小，轴上光强的峰值降低，同一段距离内得到的局域空心光束数量减少。
英文摘要：
In this paper,we propose a new method to generate periodic bottle beam by superposition of a Bes-sel beam with a plane wave for the first time.The optical fields′expression of superposition of the Bessel beam and the plane wave was deduced,the radial and transverse intensity distribution of the field was numerical sim-ulated by Mathcad.The influence of the incident beam radius on the intensity and period of bottle beam was analyzed.The results show that bottle beam can be generated by coherence of Bessel beam and plane wave,we also found that with the decreases of beam radius,the intensity of the peaks decreased and the number of bottle beam decreases at the same distance.
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