10.1364/AO.49.002954.m003 Shalin B. Mehta Shalin B. Mehta Colin J. R. Sheppard Colin J. R. Sheppard Media 3: Sample-less calibration of the differential interference contrast microscope Optica Publishing Group 2010 calibration media Sample-les interference contrast microscope ao 20 May 2010 Applied Optics 2010-05-20 00:00:00 Media https://opticapublishing.figshare.com/articles/media/Media_3_Sample-less_calibration_of_the_differential_interference_contrast_microscope/4899434 Originally published in Applied Optics on 20 May 2010 (ao-49-15-2954)