Multidimensional, dual-channel vortex beam generator

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 over a wide spectral range is essential.

from Phys.org - latest science and technology news stories https://ift.tt/34GJYUT

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