Annular apodizers for low sensitivity to defocus and to spherical aberration

Abstract

We propose a method for designing apodizers that increase the depth of focus and reduce the influence of spherical aberration. These two properties are explicitly manifested in computer-generated pictures and values of the Strehl ratio for variable spherical aberration.

© 1986 Optical Society of America

Strehl ratio with low sensitivity to spherical aberration

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