Modified Thue-Morse zone plates with arbitrarily designed high-intensity twin main foci
Modified Thue-Morse zone plates with arbitrarily designed high-intensity twin main foci
复制标题
带有任意设计的高强度双主焦点的改良 Thue-Morse 波带片
DOI：
10.1088/1555-6611/aa961f
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发表时间：
2017
期刊：
影响因子：
1.2
通讯作者：
Tao Shaohua
中科院分区：
文献类型：
--
作者：
Xia Tian;Cheng Shubo;Yan Jianwei;Tao Shaohua
我们提出了一种改进的Thue-Morse波带片(MTMZP)，它在三阶Thue-Morse波带片(TMZP)的基础上包含了周期结构。MTMZP沿轴向产生孪生主焦点，并可设计任意轴向位置的孪生焦点。与TMZP相比，相同量级的MTMZP具有更高强度的焦点。发现MTMZP双焦的轴向位置满足3/5的比例关系，并通过数值模拟验证了MTMZP光束的自重构特性。MTMZP在光学捕获和光学成像方面具有潜在的应用前景。
We present a modified Thue–Morse zone plate (MTMZP), which comprises periodic structure based on the third order Thue–Morse zone plate (TMZP). The MTMZP generates twin main foci along the axis, and arbitrary axial positions of the twin foci can be designed. Compared with the TMZP, the MTMZP of the same order has much higher-intensity foci. The axial positions of the twin foci of the MTMZP are found to satisfy the proportional relationship of 3/5. Furthermore, the self-reconstruction property of the MTMZP beam is verified with numerical simulation. The MTMZPs have potential applications in optical trapping and optical imaging.