6533b7d7fe1ef96bd126857d

RESEARCH PRODUCT

Single-Element Reflective Digital Holographic Microscopy

José ÁNgel Picazo-buenoVicente MicóJavier Garcia

subject

Materials scienceMaterials Science (miscellaneous)BiophysicsHolographyGeneral Physics and Astronomy02 engineering and technologydigital holographic microscopyreflective microscopy01 natural scienceslaw.invention010309 opticsOpticslaw0103 physical sciencesMicroscopyAstronomical interferometerdiffraction gratingPhysical and Theoretical ChemistryReflection (computer graphics)Diffraction gratingMathematical Physicsbusiness.industryphase measurememnt021001 nanoscience & nanotechnologyInterference microscopylcsh:QC1-999interference microscopyInterferometryquantitative phase imaging (QPI)Digital holographic microscopy0210 nano-technologybusinesslcsh:Physics

description

Digital holographic microscopy (DHM) is a well-known microscopy technique using an interferometric architecture for quantitative phase imaging (QPI) and it has been already implemented utilizing a large number of interferometers. Among them, single-element interferometers are of particular interest due to its simplicity, stability, and low cost. Here, we present an extremely simple common-path interferometric layout based on the use of a single one-dimensional diffraction grating for both illuminating the sample in reflection and generating the digital holograms. The technique, named single-element reflective digital holographic microscopy (SER-DHM), enables QPI and topography analysis of reflective/opaque objects using a single-shot operation principle. SER-DHM is experimentally validated involving different reflective samples.

10.3389/fphy.2021.639607https://www.frontiersin.org/articles/10.3389/fphy.2021.639607/full