title: High-resolution X-ray lensless imaging by differential holographic encoding.
abstract: We demonstrate in the soft x-ray regime a novel technique for high-resolution lensless imaging based on differential holographic encoding. We have achieved superior resolution over x-ray Fourier transform holography while maintaining the signal-to-noise ratio and algorithmic simplicity. We obtain a resolution of 16 nm by synthesizing images in the Fourier domain from a single diffraction pattern, which allows resolution improvement beyond the reference fabrication limit. Direct comparisons with iterative phase retrieval and images from state-of-the-art zone-plate microscopes are presented.
authors.affiliation: Department of Applied Physics, Stanford University, Stanford, California, USA. dlzhu@stanford.edu
authors.forename: Diling
authors.initials: D
authors.lastname: Zhu
authors.forename: Manuel
authors.initials: M
authors.lastname: Guizar-Sicairos
authors.forename: Benny
authors.initials: B
authors.lastname: Wu
authors.forename: Andreas
authors.initials: A
authors.lastname: Scherz
authors.forename: Yves
authors.initials: Y
authors.lastname: Acremann
authors.forename: Tolek
authors.initials: T
authors.lastname: Tyliszczak
authors.forename: Peter
authors.initials: P
authors.lastname: Fischer
authors.forename: Nina
authors.initials: N
authors.lastname: Friedenberger
authors.forename: Katharina
authors.initials: K
authors.lastname: Ollefs
authors.forename: Michael
authors.initials: M
authors.lastname: Farle
authors.forename: James R
authors.initials: JR
authors.lastname: Fienup
authors.forename: Joachim
authors.initials: J
authors.lastname: Stöhr