Three-dimensional (3D) direct laser writing is a powerful technology to create nano- and microscopic optical devices. While the design freedom of this technology offers the possibility to reduce different monochromatic aberrations, reducing chromatic aberrations is often neglected. In this Letter, we successfully demonstrate the combination of refractive and diffractive surfaces to create a refractive/diffractive achromat and show, to the best of our knowledge, the first refractive/diffractive apochromat by using DOEs and simultaneously combining two different photoresists, namely IP-S and IP-n162. These combinations drastically reduce chromatic aberrations in 3D printed micro-optics for the visible wavelength range. The optical properties, as well as the substantial reduction of chromatic aberrations, are characterized, and we outline the benefits of 3D direct laser written achromats and apochromats for micro-optics.

中文翻译：

---

适用于可见光波长范围的3D打印的混合折射/衍射消色差消色差透镜和复消色差透镜

三维（3D）直接激光写入是创建纳米和微观光学设备的强大技术。尽管该技术的设计自由度提供了减少不同的单色像差的可能性，但通常忽略了减少色差。在这封信中，我们成功地演示了折射和衍射表面的组合以创建折射/衍射消色差透镜，并据我们所知，展示了第一个折射/衍射消色差透镜通过使用DOE并同时组合两种不同的光致抗蚀剂，即IP-S和IP-n162。这些组合极大地降低了3D打印微光学器件在可见光波长范围内的色差。表征了光学性质以及色像差的大幅降低，并且我们概述了3D直接激光写入消色差透镜和复消色差透镜对微光学的好处。