title: Improved expressions for performance parameters for complex filters.
abstract: Improved expressions are given for the performance parameters for transverse and axial gains for complex pupil filters. These expressions can be used to predict the behavior of filters that give a small axial shift in the focal intensity maximum and also predict the changes in gain for different observation planes.
authors.affiliation: Division of Bioengineering, National University of Singapore. biescjr@nus.edu.sg
authors.forename: Colin J R
authors.initials: CJ
authors.lastname: Sheppard
authors.forename: Silvia
authors.initials: S
authors.lastname: Ledesma
authors.forename: Juan
authors.initials: J
authors.lastname: Campos
authors.forename: Juan C
authors.initials: JC
authors.lastname: Escalera
mesh_terms: D004867:Equipment Design; D005374:Filtration; D007090:Image Interpretation, Computer-Assisted; D015233:Models, Statistical; D055095:Optics and Photonics