Asymmetric lateral coherence allows precise wavefront characterization. (2nd July 2018)

• Record Type: Journal Article
• Authors: Paroli, B.; Siano, M.; Potenza, M. A. C.
• Is Part Of: Europhysics letters. Volume 122:Number 4(2018:May)
• Publication Date: 2018-07-02
• Subjects: 42.25.Kb -- 42.15.Dp -- 42.25.Hz; Physics -- Periodicals; Electronic journals; 530.05
• DOI: 10.1209/0295-5075/122/44001
• Languages: English
• ISSNs: 0295-5075

Abstract

Abstract: We describe a novel interferometric method for reconstructing a wavefront with high accuracy. By exploiting a proper scan of a double-slit array we experimentally show that the oscillations in the 2-dimensional map of the asymmetric lateral coherence are locally dilated or contracted as a function of the wavefront curvature, which produces a phase modulation of the real part of the complex degree of coherence. The proposed method can be used for high-resolution wavefront reconstruction from microwaves to X-rays.