Rodrigo Martín-Romo, José AugustoAlieva Krasheninnikova, TatianaCristóbal Pérez, GabrielCalvo Padilla, María Luisa2023-06-202023-06-202011-09-121094-408710.1364/OE.19.018621https://hdl.handle.net/20.500.14352/44176© 2011 Optical Society of America. The financial support of the Spanish Ministry of Science and Innovation under project TEC2008-04105 and TEC2010-20307 are acknowledged. José A. Rodrigo gratefully thanks a “Juan de la Cierva” grant.We present a fast and robust non-interferomentric wavefield retrieval approach suitable for imaging of both amplitude and phase distributions of scalar coherent beams. It is based on the diversity of the intensity measurements obtained under controlled astigmatism and it can be easily implemented in standard imaging systems. Its application for imaging in microscopy is experimentally studied. Relevant examples illustrate the approach capabilities for image super-resolution, numerical refocusing, quantitative imaging and phase mapping.engjournal articlehttp://dx.doi.org/10.1364/OE.19.018621http://www.opticsinfobase.org/open access535Digital Holographic MicroscopyRefractive-IndexAlgorithmTomographyEquationÓptica (Física)2209.19 Óptica Física