Visualization 1: Use of dyes to increase phase contrast for biological holographic microscopy Jay L. Nadeau Yong Bin Cho Christian A. Lindensmith 10.1364/OL.40.004114.v001 https://opticapublishing.figshare.com/articles/media/Visualization_1_Use_of_dyes_to_increase_phase_contrast_for_biological_holographic_microscopy/4920239 Control cells Originally published in Optics Letters on 01 September 2015 (ol-40-17-4114) 2015-09-01 00:00:00 Visualization holographic microscopy Control cells increase phase contrast 01 September 2015 dye Optics Letters