Stacked holographic recording (IMAGE)
Caption
To enable the new near-eye-display design, the researchers developed a holographic recording method that records each color grating sequentially in a photopolymer film, resulting in stacked red, green and blue layers during the fabrication process. They integrated the stacked RGB holographic gratings into a transparent glass waveguide as both an in-coupler and an out-coupler.
Credit
Raj Kumar, CSIR and AcSIR
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