Single-Element Reflective Digital Holographic Microscopy

Frontiers in Physics

Javier García¹  Vicente Micó¹  José Ángel Picazo-Bueno² 

[1] Department of Optics and Optometry and Vision Sciences, University of Valencia, Burjassot, Spain;null;

关键词: digital holographic microscopy;    quantitative phase imaging (QPI);    interference microscopy;    reflective microscopy;    diffraction grating;    phase measurememnt;    nanometric topography;   

DOI  :  10.3389/fphy.2021.639607

来源: Frontiers

【 摘 要 】

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.

【 授权许可】

CC BY