Three-dimensional printers have revolutionized many scientific fields with its low-cost, accessibility and ease of printing. In this paper, we show how stereolithography (SLA) based 3D printers can enable realization of innovative 3D optical devices formed through the fusion of metamaterials with geometrical optics or MEGO. It utilizes a combination of desktop SLA 3D printer and metal deposition/coating systems. Using this approach, we present innovative metamaterial embedded optical components such as mushroom-type metamaterials, curved wide-angle metamaterial absorbers/reflectors and a frequency selective moth eye hemispherical absorber. Finally a unique MEGO device formed through the fusion of a frequency selective metamaterial with an optical parabolic reflector has been demonstrated that combines their individual properties in a single device. The fabricated MEGO devices operate in the millimeter wave frequency range. Simulation and measurement results using terahertz continuous-wave spectrometer validate their functionality and performance. With improving resolution in 3D printing, MEGO devices will be able to reach Terahertz and optical frequencies in the near future.

三维打印机以其低成本、可访问性和易于打印的特点给许多科学领域带来了革命性的变化。在本文中，我们展示了基于立体光刻 (SLA) 的 3D 打印机如何实现通过超材料与几何光学或 MEGO 融合形成的创新 3D 光学设备。它结合了桌面 SLA 3D 打印机和金属沉积/涂层系统。利用这种方法，我们提出了创新的超材料嵌入式光学元件，例如蘑菇型超材料、弯曲广角超材料吸收器/反射器和频率选择性蛾眼半球形吸收器。最后，通过将频率选择性超材料与光学抛物面反射器融合而形成的独特 MEGO 器件已被证明将其各自的特性结合在单个器件中。制造的 MEGO 器件在毫米波频率范围内工作。使用太赫兹连续波光谱仪的仿真和测量结果验证了其功能和性能。随着 3D 打印分辨率的提高，MEGO 设备在不久的将来将能够达到太赫兹和光学频率。