Munro, PRT;      (2018)    Tool for simulating the focusing of arbitrary vector beams in free-space and stratified media.                   Journal of Biomedical Optics , 23  (9)    , Article 090801.  10.1117/1.JBO.23.9.090801 <https://doi.org/10.1117/1.JBO.23.9.090801>.       Green open access