Tight focusing of radially polarized beams modulated by a fractal conical lens

Liu, Z; Huang, K; Wang, X; Jones, PH; (2017) Tight focusing of radially polarized beams modulated by a fractal conical lens. Optics Communications , 402 pp. 231-237. 10.1016/j.optcom.2017.06.020 . Green open access

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