We introduce a novel approximation for the MTF of a cubic-phase pupil function with defocus that significantly reduces the computational time. We show that the average accuracy of our approximation is better than 97%.
© 2007 OSA
S. Bagheri, D. Pucci de Farias, and P. E. X. Silveira, " A Novel Approximation for the Defocused Modulation Transfer Function of a Cubic-Phase Pupil," in Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM, OSA Technical Digest (CD) (Optical Society of America, 2007), paper CMB5.
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