Phase retrieval methods for adaptive optics correction with diffractive samples

Emily Finan, Tom D. Milster

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Extension of adaptive optics (AO) techniques to future data storage applications requires consideration for light reflected off a diffractive surface. Simulations and experiments are presented to study the efficacy of various wavefront reconstruction methods for examining diffractive samples. Image processing techniques are applied as an alternative to a Shack-Hartmann wavefront sensor. A modified Gerchberg reconstruction algorithm is used to gather wavefront data from multiple image acquisitions at different defocus positions. Furthermore, these multiple images are gathered simultaneously with a single acquisition using the concept of phase retrieval with complex diversity. A computer-generated hologram (CGH) is designed, fabricated, and implemented experimentally for single-shot AO correction.

Original languageEnglish (US)
Title of host publicationODS 2020
Subtitle of host publicationIndustrial Optical Devices and Systems
EditorsRyuichi Katayama, Yuzuru Takashima
ISBN (Electronic)9781510638068
StatePublished - 2020
EventIndustrial Optical Devices and Systems Conference 2020, ODS 2020 - Virtual, Online, United States
Duration: Aug 24 2020Sep 4 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceIndustrial Optical Devices and Systems Conference 2020, ODS 2020
Country/TerritoryUnited States
CityVirtual, Online


  • Adaptive optics
  • Diffractive surfaces
  • Optical data storage
  • Phase retrieval
  • Single-shot
  • Wavefront reconstruction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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