Partially Coherent Double-Phase Holography in Visible Wavelength Using Meta-Optics

Saswata Mukherjee, Quentin A.A. Tanguy, Johannes E. Fröch, Aamod Shanker, Karl F. Böhringer, Steven Brunton, Arka Majumdar

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Ultrathin flat meta-optics have shown great promise for holography in recent years. However, most of the reported meta-optical holograms rely on only phase modulation and neglect the amplitude information. Modulation of both amplitude and phase in meta-optics requires either polarization-sensitive meta-atoms or complex scatterers with stringent fabrication requirements. Additionally, almost all of the meta-optical holograms were measured under laser illumination. Here, we adopt the concept of double-phase holography, to report polarization-independent holography with both amplitude and phase modulation, using dielectric meta-optics. We validate the implementation of complex phase hologram by measuring an improvement of structural similarity of the reconstructed hologram by nearly 3 times over phase-only holograms. Finally, we demonstrate that meta-optical holography can also be realized using partially incoherent light from a light-emitting diode. This observation can significantly reduce the alignment complexity and speckles in laser-based meta-optical holography.

Original languageEnglish
Pages (from-to)1376-1381
Number of pages6
JournalACS Photonics
Volume10
Issue number5
DOIs
StatePublished - 17 May 2023
Externally publishedYes

Keywords

  • diffractive optics
  • digital holography
  • double-phase encoding
  • meta-optics

ASJC Scopus subject areas

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

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