Paez-Lopez Rafael, Ruiz Ulises, Arrizon Victor, Ramos-Garcia Ruben
Opt Lett. 2016 Sep 1;41(17):4138-41. doi: 10.1364/OL.41.004138.
We discuss a simple method to generate a configurable annular vortex beam (AVB) with the maximum possible peak intensity, employing a phase hologram whose transmittance is the phase of a Bessel beam. Due to its maximum intensity, the AVB provides the optimal density of the orbital angular moment. Another attribute of the generated AVB is the relatively high invariance of the intensity profile when the topological charge is changed. We demonstrate the advantages and flexibility of these AVBs for optical trapping applications.
我们讨论了一种简单的方法，通过使用透射率为贝塞尔光束相位的相位全息图来生成具有最大可能峰值强度的可配置环形涡旋光束（AVB）。由于其最大强度，AVB提供了最佳的轨道角动量密度。生成的AVB的另一个特性是当拓扑电荷改变时强度分布具有相对较高的不变性。我们展示了这些AVB在光学捕获应用中的优势和灵活性。
