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. 2016 Jul 11;6:29547. doi: 10.1038/srep29547

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(A,B) Measured intensity distributions of the radiated beam in case of m = 2 PVL with hole radius r = 147 nm illuminated respectively with s = −1 and +1 polarized light, yielding l_o = 0 (A) and 2 (B); (C,D) Intensity distribution for the same PVL illuminated by linearly polarized light.