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DOE OSTI · 1303529

Method and apparatus for wavefront sensing

Bahk, Seung-Whan
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Abstract

A method of measuring characteristics of a wavefront of an incident beam includes obtaining an interferogram associated with the incident beam passing through a transmission mask and Fourier transforming the interferogram to provide a frequency domain interferogram. The method also includes selecting a subset of harmonics from the frequency domain interferogram, individually inverse Fourier transforming each of the subset of harmonics to provide a set of spatial domain harmonics, and extracting a phase profile from each of the set of spatial domain harmonics. The method further includes removing phase discontinuities in the phase profile, rotating the phase profile, and reconstructing a phase front of the wavefront of the incident beam.

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BibTeXRIS

Bahk, Seung-Whan. 2016-08-23. Method and apparatus for wavefront sensing. https://www.osti.gov/biblio/1303529

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