Complex periodic non-diffracting beams generated by superposition of two identical periodic wave fields
Complex periodic non-diffracting beams generated by superposition of two identical periodic wave fields
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两个相同周期波场叠加产生的复杂周期非衍射光束
DOI：
10.1016/j.optcom.2016.12.022
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发表时间：
2017
影响因子：
2.4
通讯作者：
Zhao Lina
中科院分区：
文献类型：
--
作者：
Gao Yuanmei;Wen Zengrun;Zheng Liren;Zhao Lina
提出了一种通过两束相同的简单无衍射光束以特定角度叠加产生复周期离散无衍射光束的方法。对于特殊情况，我们分别研究了两个相同的正方形（“4+4”）和两个六边形（“6+6”）周期波场在特定角度的叠加，得到了一系列有趣的复PDNB。通过调制相邻干涉光束之间的初始相位差也获得了新的PDNB。在实验中，一个4f傅里叶滤波器系统和相位空间光调制器压印合成相位图案的这些PDNB被用来产生所需的波场。
A method has been proposed to generate complex periodic discrete non-diffracting beams (PDNBs) via superposition of two identical simple PDNBs at a particular angle. As for special cases, we studied the superposition of the two identical squares (“4+4”) and two hexagonal (“6+6”) periodic wave fields at specific angles, respectively, and obtained a series of interesting complex PDNBs. New PDNBs were also obtained by modulating the initial phase difference between adjacent interfering beams. In the experiment, a 4 f Fourier filter system and a phase-only spatial light modulator imprinting synthesis phase patterns of these PDNBs were used to produce desired wave fields.