@article{Zhang2025, 
author = {Bo Zhang and Zhuo Wang and Dezhi Tan and Min Gu and Yuanzheng Yue and Jianrong Qiu},
title = {Focal volume optics for composite structuring in transparent solids},
year = {2025},
journal = {International Journal of Extreme Manufacturing},
volume = {7},
number = {1},
keywords = {ultrafast laser, focal volume light field, composite structuring, transparent solids, advanced manufacturing},
url = {https://www.sciopen.com/article/10.1088/2631-7990/ad8712},
doi = {10.1088/2631-7990/ad8712},
abstract = {Achieving high-level integration of composite micro-nano structures with different structural characteristics through a minimalist and universal process has long been the goal pursued by advanced manufacturing research but is rarely explored due to the absence of instructive mechanisms. Here, we revealed a controllable ultrafast laser-induced focal volume light field and experimentally succeeded in highly efficient one-step composite structuring in multiple transparent solids. A pair of spatially coupled twin periodic structures reflecting light distribution in the focal volume are simultaneously created and independently tuned by engineering ultrafast laser-matter interaction. We demonstrated that the generated composite micro-nano structures are applicable to multi-dimensional information integration, nonlinear diffractive elements, and multi-functional optical modulation. This work presents the experimental verification of highly universal all-optical fabrication of composite micro-nano structures with independent controllability in multiple degrees of freedom, expands the current cognition of ultrafast laser-based material modification in transparent solids, and establishes a new scientific aspect of strong-field optics, namely, focal volume optics for composite structuring transparent solids.}
}