title: Efficient coherent diffractive imaging for sparsely varying objects.
abstract: We demonstrate an efficient phase-retrieval method, allowing the recovery of features of dynamic objects that are sparsely varying--i.e. when the difference between two consecutive frames is small. The method uses redundancy in information between similar consecutive frames to recover the features more robustly than current phase-retrieval methods, and necessitates a considerably smaller number of measurements. Both of these features directly lead to shorter acquisition time, paving the way to coherent diffractive imaging of fast dynamic processes. Numerical simulations show a possible 100-fold improvement in temporal resolution over existing methods.
authors.affiliation: Physics Department, Technion - Israel Institute of Technology, Haifa 32000, Israel.joe@tx.technion.ac.il
authors.forename: Yoav
authors.initials: Y
authors.lastname: Shechtman
authors.forename: Yonina C
authors.initials: YC
authors.lastname: Eldar
authors.forename: Oren
authors.initials: O
authors.lastname: Cohen
authors.forename: Mordechai
authors.initials: M
authors.lastname: Segev