title: High focal depth with fractional-power wave fronts.
abstract: We explore the use of phase profiles with fractional power for tailoring modulation transfer functions with high focal depth at high pupil apertures. We present numerical simulations of the images that can be obtained with certain fractional-power profiles.
authors.affiliation: Engineering Institute, Autonomous University of Baja California, Calle de la Normal S/N, Mexicali 21050, Baja California, Mexico. angels@iing.mxl.uabc.mx
authors.forename: Angel
authors.initials: A
authors.lastname: Sauceda
authors.forename: Jorge
authors.initials: J
authors.lastname: Ojeda-Castañeda