Timesaving phase retrieval approach based on difference map normalization and fast iterative algorithm

Yu Zhang, Xiaobo Tian, Rongguang Liang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

To achieve high measurement accuracy with less computational time in phase shifting interferometry, a random phase retrieval approach based on difference map normalization and fast iterative algorithm (DN&FIA) is proposed, it doesn't need pre-filtering, and has the advantage of the iterative algorithms-high accuracy, moreover, it also has the advantage of non-iterative algorithms-timesaving, it only needs three randomly phase shifted interferograms, and the initial phase shifts of the iteration can be random, last but not least, it is effective for the circular, straight or complex fringes. The simulations and experiments verify the correctness and feasibility of DN&FIA.

Original languageEnglish (US)
Pages (from-to)18-28
Number of pages11
JournalOptics and Lasers in Engineering
Volume121
DOIs
StatePublished - Oct 2019

Keywords

  • Difference map normalization
  • Interferometry
  • Iterative algorithm
  • Phase shift
  • Phase shifting algorithm

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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