Experimental Fresnel and Fourier digital holography using a digital micro-mirror device

We present an experimental off-axis optical holographic scheme employing a digital micromirror device (DMD) as projecting media instead of a liquid crystal spatial light modulator (SLM). The DMD allows projecting information through light reflection. We perform holographic recording in the Fourier and the Fresnel domains under similar experimental configurations to test our experimental scheme and verify the DMD performance as a binary amplitude SLM. For the digital holographic recovery process of Fourier holograms, we applied a non-linear modification that allows reducing the degradation in the recovered data. We also implement a multiplexing protocol enabling the packaging of an entire holographic dynamic scene into a single data. Furthermore, we use QR codes as information containers to achieve noise-free information recovery after holographic reconstruction. Experimental results demonstrate the viability and versatility of a DMD in an experimental holographic scheme.

Automated summary

This study presents an experimental off-axis optical holographic scheme using a DMD instead of a liquid crystal SLM, verifying its performance as a binary amplitude SLM. Non-linear modifications and multiplexing protocols are applied for data recovery and packaging of the entire scene, with noise-free information recovery achieved using QR codes. The experimental results demonstrate the feasibility and versatility of DMD in holographic schemes.