title: Wavefield imaging via iterative retrieval based on phase modulation diversity.
abstract: 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.
authors.affiliation: Instituto de Óptica, CSIC, Madrid, Spain.
authors.forename: José A
authors.initials: JA
authors.lastname: Rodrigo
authors.forename: Tatiana
authors.initials: T
authors.lastname: Alieva
authors.forename: Gabriel
authors.initials: G
authors.lastname: Cristóbal
authors.forename: María L
authors.initials: ML
authors.lastname: Calvo