Abstract
We design and experimentally investigate the generation of orbital angular momentum (OAM) beams with topological number from l = -4 to 4 at the wavelength of 632.8 nm utilizing the nanophotonic dielectric metasurface array. We also detect the generated OAM beams using the dielectric metasurface array corresponding to their inverted topological number.
© 2016 Optical Society of America
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