A modified spiral petal-like zone plate (MSPZP) is proposed to generate the polygon-like beam with the tailorable shape, size and topological charge. The size and shape of the polygon-like beam are adjustalbe by the frequency N and the exponent m, whose product represents the number of sides of the polygon. Moreover, the size of the polygon-like beam can be also tailorable by the original radius r₀. When the exponent m is equal to 2, the distances between the vertices of the polygon-like beams and the central point are equal to r₀. In addition, the topological charges of the polygon-like beam can be identified by the number of fringes generated by the corresponding interference phases of MSPZPs. The method of constructing the MSPZP is illustrated. Furthermore, it is also proved in the simulations and experiments that the tailorable polygon-like beam can be generated by the MSPZP. The proposed zone plates are applicable to trap particles along the different polygon-like curves and have potential applications in optical communication.

提出了一种改进的螺旋花瓣状波带片（MSPZP）来产生形状，尺寸和拓扑电荷可调节的多边形束。多边形光束的大小和形状可以通过频率N和指数m来调节，其乘积表示多边形的边数。此外，也可以通过原始半径r ₀来调整多边形光束的尺寸。当指数m等于2时，多边形光束的顶点与中心点之间的距离等于r ₀。另外，可以通过由MSPZP的相应干涉相生成的条纹数量来识别多边形束的拓扑电荷。说明了构造MSPZP的方法。此外，在仿真和实验中还证明了MSPZP可以生成可定制的多边形光束。提出的波带片适用于沿不同的多边形曲线捕获粒子，并在光通信中具有潜在的应用。