The use of two-photon 3D printing to create templates for fabricating reproducible and tunable metallic nanostructures is described. The approach allows the structure of the template to be designed specifically for particular applications, e.g., fluid flow control, surface enhanced Raman spectroscopy, metal enhanced fluorescence etc. Here, we show that this method offers excellent control of the size, pitch and packing of spheres on both conducting and insulating substrates, unlike nanosphere lithography. Gold is deposited through these templates and the template then removed using a plasma etching method. In this way, gold nanotriangles, nanodiamonds and nanocavities have been created and characterized using SEM to determine the accuracy of the structures compared to the software designs.

描述了使用双光子3D打印来创建用于制造可重现和可调的金属纳米结构的模板。该方法允许针对特殊应用（例如流体流量控制，表面增强拉曼光谱，金属增强荧光等）专门设计模板的结构。在这里，我们证明了该方法可以很好地控制尺寸，间距和堆积导电和绝缘基板上的球形，与纳米球光刻不同。金通过这些模板沉积，然后使用等离子蚀刻方法去除模板。通过这种方法，已经创建了金纳米三角形，纳米金刚石和纳米腔，并使用SEM进行了表征，以确定与软件设计相比结构的准确性。