Incoherent Lateral Shearing Digital Holographic Microscopy

The ability to resolve and quantify features at submicrometer scales from a single-shot image is crucial for real-time uncovering intricate structures in unlabeled biological samples and analyzing them at the subcellular level. Particularly, lateral shearing digital holographic microscopes allow direct quantitative phase imaging by increasing the shear beyond the dimensions of an observed object, leading to robust common-path imaging systems suitable for compact portable devices. However, the imaging quality of these microscopes has been limited by spatially coherent illumination, leading to an uneven speckled phase and a resolution constrained by spatially coherent illumination.