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The introduction of nanoparticles into photopolymers has been proven as an effective approach to enhance the holographic performance of photopolymers. Among these nanoparticles, nano-diamonds (NDs) with high hardness, stability, and refractive index represent an ideal doping component. In this study, we investigate the impact of doping different concentrations of ND nanoparticles on the holographic performance of Irgacure 784/PMMA photopolymers. The doping of ND nanoparticles leads to significant enhancements in diffraction efficiency for the photopolymer samples. Notably, photopolymers doped with 0.5×10-3 wt% ND nanoparticles achieve a maximum diffraction efficiency of approximately 87%, nearly doubled when compared to undoped photopolymers. Subsequently, holographic imaging of real objects is conducted on ND-doped photopolymers. Experimental results show that our investigated polymers have high peak diffraction efficiency and is capable of reconstructing high-quality and stable holographic reconstructed images. This investigation shows enhancement of holographic performance by doping ND nanoparticles into the photopolymer, providing a new pathway for the further advancement of holographic technology and significant guidance for designing high-performance holographic recording materials.
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