title: Phase-diversity wave-front sensing with a distorted diffraction grating.
abstract: We describe a novel wave-front sensor comprising a distorted diffraction grating, simple optics, and a single camera. A noniterative phase-diversity algorithm is used for wave-front reconstruction. The sensor concept and practical implementation are described in detail, and performance is validated against different Zernike modes and a representative atmospheric phase map.
authors: Electronics Sector, Defence Evaluation and Research Agency, St Andrew's Road, Malvern, Worcestershire WR14 3PS, United Kingdom.
authors: P M
authors: PM
authors: Blanchard
authors: D J
authors: DJ
authors: Fisher
authors: S C
authors: SC
authors: Woods
authors: A H
authors: AH
authors: Greenaway