Abstract
Large-area nano-/microarray production in a single shot is a significant challenge in laser shock imprinting (LSI). Materials that can be used to fabricate molds easily will advance LSI techniques. Thus, here, an Al foil was compression-molded in a natural leaf mold using an explosive-derived underwater shock wave. The phytoliths’ inertia triggered Al foil deformation, and microimprinting on an ultralarge area measuring 10−2 m2 was performed. The difference in the Al foil deformation rate caused by the phytoliths influenced the Al foil imprinting depth. Further, even a low-strength base to hold particles could be applied to the mold for LSI.
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