Abstract

Even for the simplest nontrivial aberration, defocus, and for a circular pupil, there is no theoretical closed-form expression for the optical transfer function (OTF). By using a simple approximation, we provide a simple yet accurate approximation for the OTF of a defocused system. We generalize this approach to generic quadratic aberrations, including astigmatism.

© 2017 Optical Society of America

Asymptotic behavior of the spatial frequency response of an optical system with defocus and spherical aberration

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Effects on the OTF of MSF structures with random variations

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