Sensors (Aug 2021)

Digital Incoherent Compressive Holography Using a Geometric Phase Metalens

  • Jonghyun Lee,
  • Youngrok Kim,
  • Kihong Choi,
  • Joonku Hahn,
  • Sung-Wook Min,
  • Hwi Kim

DOI
https://doi.org/10.3390/s21165624
Journal volume & issue
Vol. 21, no. 16
p. 5624

Abstract

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We propose a compressive self-interference incoherent digital holography (SIDH) with a geometric phase metalens for section-wise holographic object reconstruction. We specify the details of the SIDH with a geometric phase metalens design that covers the visible wavelength band, analyze a spatial distortion problem in the SIDH and address a process of a compressive holographic section-wise reconstruction with analytic spatial calibration. The metalens allows us to realize a compressive SIDH system in the visible wavelength band using an image sensor with relatively low bandwidth. The operation of the proposed compressive SIDH is verified through numerical simulations.

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