Phys.org -
28 Aug 2020 13:42

Optical vortices, characterized by a helical phase front and doughnut-shaped intensity distribution, contribute to a broad range of applications, from microscopy to optical communications. And applications for optical vortices are proliferating. So, what's the best way to generate optical vortices? Active, direct emission from a laser cavity is considered one of the best approaches. For applications in quantum optics and super-resolution imaging, a laser source capable of generating vortices ove...
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