Fig. 1. Flow chart of material allocation and sample preparation

Fig. 2. Optical path diagram of holographic experimental exposure measurement

Fig. 3. Polymerization process of CeO₂ doped TMPTA/EP828 material at 532 nm wavelength

Fig. 4. Absorption spectra of samples doped with different CeO₂ concentrations（0，0.05%，0.1%，0.2%）.

Fig. 5. Diffraction efficiency curves of samples doped with different CeO₂ concentrations（0，0.05%，0.1%，0.2%）.

Fig. 6. Diffraction efficiency curves of 0.05% CeO₂ doped samples at different pre-polymerization temperatures

Fig. 7. Angular selectivity curves for 0.05% CeO₂ doped holographic gratings and undoped gratings at a wavelength of 532 nm

Fig. 8. Physical diagram of holographic polymer grating sample

Fig. 9. ISO/IEC 18927 response cycle curve for temperature and humidity in aging experiments

Fig. 10. During the aging experiment，diffraction efficiency curve graphs of 0.05% CeO₂ doped holographic grating sample and undoped holographic grating sample.

Fig. 11. Image reconstruction results of angle-multiplexed storage using CeO₂-doped TMPTA/EP828 material，the rotation angle of the displacement stage is 10°.