An analysis of the Strehl ratio and the optical transfer function as imaging quality parameters of optical elements with enhanced focal length is carried out by employing the Wigner distribution function. To this end, we use four different pupil functions: a full circular aperture, a hyper-Gaussian aperture, a quartic phase plate, and a logarithmic phase mask. A comparison is performed between the quality parameters and test images formed by these pupil functions at different defocus distances.
© 2000 Optical Society of America
Dobryna Zalvidea, Cecilia Colautti, and Enrique E. Sicre, "Quality parameters analysis of optical imaging systems with enhanced focal depth using the Wigner distribution function," J. Opt. Soc. Am. A 17, 867-873 (2000)