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发明公开
CN105242413A 一种六角阵列螺旋相位板及制作方法 无效 - 驳回

一种六角阵列螺旋相位板及制作方法
摘要：
本发明涉及一种六角阵列螺旋相位板及制作方法，其制造方法具体包括以下步骤：设定参数，参数包括正六边形基元的边长d，光斑压缩比值γ，入射激光波长λ，螺旋相位的拓扑荷l，在水平方向上的基元数目值M和与水平方向成60度方向上的基元数目值N；计算得到M×N个正六边形基元在对应排列位置参数(m,n)处的旋转角度值θ0(m,n)；在正六边形基元中，填入对应的以θ0(m,n)为起始旋转方位角的螺旋相位；将所有M×N个正六边形基元按排列位置参数(m,n)紧密排列，产生相位分布数据；制备六角阵列螺旋相位板。本发明能使相干平面光波在衍射距离处产生六角点阵结构排列的光学涡旋，改变每个基元内的螺旋相位的初始旋转方位角，可实现不同周期的六角阵列涡旋。
摘要（英）：

The invention relates to a hexagonal array spiral phase plate and a manufacturing method. The manufacturing method specifically comprises the following steps: setting parameters, the parameters comprising side length d of a regular hexagon element, a facula compression ratio [gamma], an incident laser wavelength [lambda], topological charge l of a spiral phase, and the number M of elements on a horizontal direction, and the number N of elements on a direction which forms a 60 DEG angle with the horizontal direction; calculating to obtain rotation angle values [theta]0(m,n) of M*N regular hexagon elements on positions of corresponding arrangement position parameters (m,n); in the regular hexagon elements, filling corresponding spiral phase which uses the [theta]0(m,n) as initial rotation azimuth angles; tightly arranging the M*N regular hexagon elements according to the arrangement position parameters (m,n), generating phase distribution data; and manufacturing a hexagonal array spiral phase plate. Coherent planar optical waves can generate optical vortex arranged in a hexagonal lattice structure on a diffraction distance, and the initial rotation azimuth angle of the spiral phase in each element is changed, so as to realize hexagonal array vortex in different periods.

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