Single-shot phase retrieval with complex diversity

Akira Eguchi, Tom D. Milster

Research output: Contribution to journalArticle

Abstract

The concept of complex diversity is introduced that adequately accounts for special considerations in the design of the system and the reconstruction algorithm for single-shot phase retrieval techniques. Complex-number pupil filters containing both amplitude and phase values are extracted by numerical propagation from a computer-generated hologram design, which generates multiple images in a single acquisition. The reconstruction is performed by a Fourier iterative algorithm modified with an area restriction to avoid noise amplification. Numerical simulations show that the complex diversity technique estimates extrinsic Kolmogorov aberration better than conventional single-shot techniques for a distant point object. Experiments show that sensorless adaptive optics correction is achieved using the complex diversity technique.

Original languageEnglish (US)
Pages (from-to)5108-5111
Number of pages4
JournalOptics letters
Volume44
Issue number21
DOIs
StatePublished - Nov 1 2019

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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