Holographic photopolymerization provides a robust approach for the advanced manufacturing of structurally ordered devices. However, photogenerated radicals in bright regions are prone to cross-regional diffusion and induce unwanted polymerizations in dark regions, making efficient holographic manufacturing exceedingly challenging. Herein, we report a breakthrough by spatially confining the initiation function, enabling the unprecedentedly rapid formation of predesigned submicron-ordered grating structures within merely 0.75 s under visible light holographic exposure. Theoretical computations attribute the success of this initiation-confined approach to orders of magnitude larger reaction rate constants of initiation than propagation. This approach is highly versatile, facilitating the fabrication of both transmission- and reflection-type volume holographic grating structures starting from various reaction systems, and the refractive index modulation can be as high as 0.10, enabling ultraefficient manufacturing of waveguide combiners for high-fidelity near-eye AR displays.

全息光聚合为结构有序设备的先进制造提供了可靠的方法。然而，亮区产生的自由基容易扩散到暗区并诱导不必要的聚合反应，这使得高效全息制造变得极具挑战性。在此，我们报告了一项突破性的进展，通过空间限制引发功能，能够在可见光全息曝光下仅用0.75秒内形成预先设计的亚微米级有序光栅结构。理论计算表明，这种受限引发的方法之所以成功是因为其引发反应速率常数比传播反应速率常数大几个数量级。这种方法具有高度灵活性，可以从各种反应系统中制造透射型和反射型体全息光栅结构，并且折射率调制可以高达0.10，这使得用于高保真近眼AR显示器的波导组合器的超高效制造成为可能。