Development of two user-friendly commercial digital holographic microscopes and applications

Digital holographic microscope (DHM) as a quantitative phase imaging and surface metrological tool for microstructure objects has shown increased interest over the past two decades. In this paper, we report the development of two commercial digital holographic microscopes (reflection mode and transmission mode) for different applications. The two microscopes all use a CCD camera for recording of a digital off-axis hologram and a numerical method for reconstructing the hologram. The user-friendly software simultaneously provides an amplitude image and a quantitative phase image of the object. Furthermore, additional features include various image enhancements, cross-sectional and line profiling, measurement and data analysis tools. Some applications of the two products are presented on different specimens, such as MEMS, cells.