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Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
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Two-step acceleration calculation method to generate curved holograms using the intermediate plane in a
Applied Optics
|October 6, 2021
Summary
This study introduces a two-step method to accelerate curved hologram generation, significantly reducing computation time for wider field-of-view holographic displays.
Area of Science:
- Optics
- Computer Graphics
- Holography
Background:
- Curved computer-generated holograms (CCGHs) are crucial for expanding the field of view in holographic displays.
- High computational load is a major bottleneck in generating CCGHs.
Purpose of the Study:
- To propose an efficient two-step acceleration calculation method for generating curved holograms.
- To reduce the computational complexity associated with CCGHs.
Main Methods:
- A two-step calculation approach using an intermediate plane between the object and the hologram.
- The first step involves calculating the intermediate plane using an improved, accurate, highly compressed lookup-table method.
- The second step performs diffraction calculations from the intermediate plane to generate the final curved hologram.
Main Results:
- The proposed method significantly reduces calculation time for curved hologram generation.
- Numerical simulations and optical experiments validate the efficiency of the method.
- The method numerically demonstrates the increased field of view achievable with curved holograms.
Conclusions:
- The developed two-step method offers an efficient solution for generating curved computer-generated holograms.
- This technique can potentially be integrated with curved display screens for advanced 3D holographic displays.
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