Aberration and the Strehl ratio.
An exact expression is derived for the Strehl ratio as a function of the minimum root-mean-square aberration value that may produce it. The result is applicable to any aperture and is shown to imply a similar expression for the Strehl ratio as a function of the minimum amplitude range of the aberration.
van den Bos
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Department of Physics, Delft University of Technology, The Netherlands.
D008962:Models, Theoretical; D055095:Optics and Photonics