Digital Incoherent Compressive Holography Using a Geometric Phase Metalens

• DOI: 10.3390/s21165624
• Publication Date: 2021-08-23T02:59:27Z
• Authors: Jonghyun Lee; Youngrok Kim; Kihong Choi; Joonku Hahn; Sung-Wook Min; Hwi Kim
• Keywords: metasurface; diffractive optics; Chemical technology; optical sectioning; 0103 physical sciences; compressive sensing; computer-generated hologram; TP1-1185; digital holography; 01 natural sciences; Article

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.