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Digital holographic phase imaging with aberrations totally compensated.

Xiaomin Lai1, Sheng Xiao2, Yakun Ge1

  • 1College of Life Information Science and Instrument Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.

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Summary

This study introduces a novel digital holographic phase imaging technique that fully compensates for object aberrations. This method enables the acquisition of pure object phase information for advanced analysis.

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Area of Science:

  • Optics and Photonics
  • Image Processing

Background:

  • Digital holography is a standard technique for phase imaging.
  • Phase information in digital holography is often obscured by aberrations, including high-order ones.

Purpose of the Study:

  • To present a digital holographic phase imaging method with complete aberration compensation.
  • To enable the retrieval of pure object phase information.

Main Methods:

  • Utilized a 1D fitting approach for aberration compensation, offering greater flexibility than pre-defined models or 2D fitting.
  • Applied the 1D fitting method across the entire data plane, allowing for comprehensive aberration correction.

Main Results:

  • Successfully compensated for all types of aberrations, including high-order aberrations.
  • Experimental validation confirmed the full compensation of aberrations.
  • Obtained pure object phase data, suitable for further investigation.

Conclusions:

  • The developed 1D fitting method effectively compensates for aberrations in digital holographic phase imaging.
  • This technique allows for the recovery of accurate, aberration-free phase information from holographic data.