Physics – Optics
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988opten..27.1078v&link_type=abstract
Optical Engineering (ISSN 0091-3286), vol. 27, Dec. 1988, p. 1078-1087.
Physics
Optics
7
Adaptive Optics, Error Analysis, Incoherence, Light (Visible Radiation), Optical Equipment, Wave Fronts, Digital Simulation, Photosphere, Waveforms
Scientific paper
A technique for measuring wavefront errors in an optical system that receives light from a spatially extended, arbitrarily structured, incoherent source is described. If a suitable transparent mask is placed at an image plane of the system, the structure in the light source serves as a tracer for wavefront errors. The slope of the wavefront error can be detected in the form of intensity variations in a pupil image that follows the mask. One-dimensional numerical simulations of the method as well as the analytical treatment of the proposed principle are presented. The application of the technique as a wavefront sensor in an adaptive optical system for solar observations, in which aberrations are caused by atmospheric turbulence in the light path, is discussed as an example.
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