title: Determination of wavefront structure for a Hartmann wavefront sensor using a phase-retrieval method.
abstract: We apply a phase retrieval algorithm to the intensity pattern of a Hartmann wavefront sensor to measure with enhanced accuracy the phase structure of a Hartmann hole array. It is shown that the rms wavefront error achieved by phase reconstruction is one order of magnitude smaller than the one obtained from a typical centroid algorithm. Experimental results are consistent with a phase measurement performed independently using a Shack-Hartmann wavefront sensor.
authors.affiliation: Optics Research Group, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands. a.polo@tudelft.nl
authors.forename: A
authors.initials: A
authors.lastname: Polo
authors.forename: V
authors.initials: V
authors.lastname: Kutchoukov
authors.forename: F
authors.initials: F
authors.lastname: Bociort
authors.forename: S F
authors.initials: SF
authors.lastname: Pereira
authors.forename: H P
authors.initials: HP
authors.lastname: Urbach
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008962:Models, Theoretical; D010783:Photometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D014159:Transducers