Asymmetric lateral coherence allows precise wavefront characterization

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 o...

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Bibliographic Details
Published in:Europhysics letters 2018-05, Vol.122 (4), p.44001
Main Authors: Paroli, B., Siano, M., Potenza, M. A. C.
Format: Article
Language:English
Subjects:
42.15.Dp
42.25.Hz
42.25.Kb
Asymmetry
Coherence
Microwaves
Phase modulation
Wave front reconstruction
Wave fronts
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Summary: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.
ISSN:0295-5075
1286-4854
1286-4854
DOI:10.1209/0295-5075/122/44001