We propose two schemes for achieving continuous and complete orbital angular momentum tuning using a simple device based on a phase only parallel aligned liquid crystal on silicon (PA-LCoS) display, where the tuning is done by combining two beams with opposite orbital angular momentum (OAM) and orthogonal polarization, whose relative weight is controlled by changing the input beam state of polarization (SoP). We use an optical tweezers toolbox to simulate the optical force field of the tuned beams applied to dielectric spherical particles in order to prove the applicability of the method.

中文翻译：

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使用仅相位平行对齐的LCoS显示器进行轨道角动量调整

我们提出了两种方案，可使用简单的设备基于仅相位平行排列的硅基液晶（PA-LCoS）显示器来实现连续和完整的轨道角动量调谐，其中调谐是通过组合两个具有相反轨道角动量的光束完成的（ OAM）和正交极化，其相对权重通过更改输入光束的极化状态（SoP）来控制。为了证明该方法的适用性，我们使用了一个光镊工具箱来模拟施加到介电球形颗粒上的调谐光束的光学力场。