Arrizón Victor, Ruiz Ulises, Sánchez-de-la-Llave David, Mellado-Villaseñor Gabriel, Ostrovsky Andrey S
Opt Lett. 2015 Apr 1;40(7):1173-6. doi: 10.1364/OL.40.001173.
An annular vortex of arbitrary integer topological charge q can be obtained at the Fourier domain of appropriate phase diffractive optical elements. In this context we prove that the diffractive element that generates the vortex with maximum peak intensity has the phase modulation of a propagation-invariant qth order Bessel beam. We discuss additional advantages of this phase element as annular vortex generator.
在适当的相位衍射光学元件的傅里叶域中，可以获得具有任意整数拓扑电荷q的环形涡旋。在此背景下，我们证明，产生具有最大峰值强度的涡旋的衍射元件具有传播不变的q阶贝塞尔光束的相位调制。我们讨论了这种相位元件作为环形涡旋发生器的其他优点。
