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Updated: Jan 30, 2026

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
Published on: January 14, 2020
Color holographic display using single chip LCOS
A new algorithm enables 3D color holographic display using a single Liquid Crystal on Silicon (LCOS) chip. This method, an evolution of G-S iteration, successfully generates and reconstructs full-color 3D holographic images.
Area of Science:
- Optics and Photonics
- Holography
- Display Technologies
Background:
- Traditional holographic displays often require complex setups.
- Achieving full-color 3D holographic projection with a single chip presents significant challenges.
- Existing algorithms may not be optimized for single-chip color holographic applications.
Purpose of the Study:
- To propose a novel algorithm for phase-only Computer-Generated Hologram (CGH) calculation.
- To enable 3D color holographic display using a single Liquid Crystal on Silicon (LCOS) spatial light modulator (SLM).
- To demonstrate the feasibility of the proposed method through numerical simulation and optical reconstruction.
Main Methods:
- Developed an algorithm evolving from the Gerchberg-Saxton (G-S) iteration.
- Replaced single-wavelength Fresnel diffraction with a color Fresnel diffraction process within the G-S algorithm.
- Integrated the modified algorithm with "Ping-Pong" iteration for 3D color hologram calculation.
Main Results:
- Successfully generated a hologram capable of projecting a color 3D image.
- Numerical simulations validated the algorithm's performance.
- Optical reconstruction using a single SLM-based system confirmed the realization of 3D color holographic display.
Conclusions:
- The proposed algorithm effectively calculates phase-only CGHs for 3D color display.
- Single-chip LCOS technology can be utilized for advanced 3D color holographic applications.
- The method offers a viable approach for practical 3D color holographic systems.
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