title: Demonstration of an optimised focal field with long focal depth and high transmission obtained with the Extended Nijboer-Zernike theory.
abstract: In several optical systems, a specific Point Spread Function (PSF) needs to be generated. This can be achieved by shaping the complex field at the pupil. The Extended Nijboer-Zernike (ENZ) theory relates complex Zernike modes on the pupil directly to functions in the focal region. In this paper, we introduce a method to engineer a PSF using the ENZ theory. In particular, we present an optimization algorithm to design an extended depth of focus with high lateral resolution, while keeping the transmission of light high (over 60%). We also have demonstrated three outcomes of the algorithm using a Spatial Light Modulator (SLM).
authors: A P
authors: AP
authors: Konijnenberg
authors: L
authors: L
authors: Wei
authors: N
authors: N
authors: Kumar
authors: L Couto Correa Pinto
authors: LC
authors: Filho
authors: L
authors: L
authors: Cisotto
authors: S F
authors: SF
authors: Pereira
authors: H P
authors: HP
authors: Urbach
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods*; D007909:Lenses; D008027:Light; D008962:Models, Theoretical; D012542:Scattering, Radiation