Determination of the wavefront errors of an astronomical telescope using lateral shearing interferometry

Details Determination of the wavefront errors of an astronomical telescope using lateral shearing interferometry Determination of the wavefront errors of an astronomical telescope using lateral shearing interferometry

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.284..655h&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 284, Issue 3, pp. 655-668.

Astronomy and Astrophysics

Astronomy

Techniques: Interferometric, Telescopes.

Scientific paper

Practical aspects of using lateral shearing interferometry for the determination of wavefront errors in astronomical optical systems are discussed, as well as underlying theory. The relationship between polynomial descriptions of the sheared and unsheared wavefronts is reconsidered, and a single-step wavefront reconstruction process is derived. The particular reconstruction matrix tabulated in this paper allows solutions for Zernike polynomials up to fifth radial degree. Some results of applying this method to the determination of the wavefront errors of the UK Infrared Telescope are presented.

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