Nanoscale Spatial Resolution in Far-Field Raman Imaging Using Hyperspectral Unmixing in Combination with Positivity Constrained Super-Resolution. - Winterauer, Dominik J.; Funes-Hernando, Daniel; Duvail, Jean-Luc; Moussaoui, Saïd; Batten, Tim; Humbert, Bernard (Applied Spectroscopy, 2020)