Generation of multiple vortex-cones by direct-phase modulation of annular aperture array.
نویسندگان
چکیده
The generation of multiple vortex cones using an annular aperture array and a spatial light modulator (SLM) is studied. The direct downscale imaging of an SLM on the surface of an annular aperture enables the direct-phase modulation of the annular aperture. It is experimentally demonstrated that the direct-phase modulation of an annular aperture array can control both the topological charge and the horizontal positions of multiple vortex cones simultaneously.
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ورودعنوان ژورنال:
- Applied optics
دوره 51 30 شماره
صفحات -
تاریخ انتشار 2012