Komori Takuma, Furukawa Taichi, Iijima Motoyuki, Maruo Shoji
Opt Express. 2020 Mar 16;28(6):8363-8370. doi: 10.1364/OE.388593.
A multi-scale direct writing method for metal microstructures is proposed and demonstrated. In this study, metal structures were created in a gelatin matrix containing silver nitrate by photoreduction using a 405-nm blue laser. The influence of concentrations of materials in the sample solution was evaluated by measuring the conductivity of the fabricated microstructures. The fabrication line width could be controlled by changing the laser scanning speed. A network structure was also observed, which possibly helps in increasing the microstructure's conductivity. Finally, we demonstrated multi-scale drawing by using objective lenses with different numerical apertures. Our method can result in new possibilities for conductive metal direct writing.
提出并演示了一种用于金属微结构的多尺度直接写入方法。在本研究中，使用405纳米蓝光激光通过光还原在含有硝酸银的明胶基质中创建金属结构。通过测量制造的微结构的电导率来评估样品溶液中材料浓度的影响。可以通过改变激光扫描速度来控制制造线宽。还观察到一种网络结构，这可能有助于提高微结构的电导率。最后，我们通过使用具有不同数值孔径的物镜演示了多尺度绘图。我们的方法可为导电金属直接写入带来新的可能性。
