Jin Qihao, Zhang Qiaoshuang, Rainer Christian, Hu Hang, Chen Junchi, Gehring Tim, Dycke Jan, Singh Roja, Paetzold Ulrich W, Hernández-Sosa Gerardo, Kling Rainer, Lemmer Uli
Light Technology Institute (LTI), Karlsruhe Institute of Technology (KIT), Engesserstrasse 13, 76131, Karlsruhe, Germany.
InnovationLab, Speyerer Strasse 4, 69115, Heidelberg, Germany.
Nat Commun. 2024 Apr 20;15(1):3372. doi: 10.1038/s41467-024-47086-x.
Optical interference filters (OIFs) are vital components for a wide range of optical and photonic systems. They are pivotal in controlling spectral transmission and reflection upon demand. OIFs rely on optical interference of the incident wave at multilayers, which are fabricated with nanometer precision. Here, we demonstrate that these requirements can be fulfilled by inkjet printing. This versatile technology offers a high degree of freedom in manufacturing, as well as cost-affordable and rapid-prototyping features from the micron to the meter scale. In this work, via rational ink design and formulation, OIFs were fully inkjet printed in ambient conditions. Longpass, shortpass, bandpass, and dichroic OIFs were fabricated, and precise control of the spectral response in OIFs was realized. Subsequently, customized lateral patterning of OIFs by inkjet printing was achieved. Furthermore, upscaling of the printed OIFs to A4 size (29.7 × 21.0 cm²) was demonstrated.
光学干涉滤光片（OIF）是广泛的光学和光子系统中的关键组件。它们对于按需控制光谱透射和反射至关重要。OIF依赖于多层结构中入射波的光学干涉，这些多层结构是采用纳米精度制造的。在此，我们证明这些要求可以通过喷墨打印来满足。这种通用技术在制造方面提供了高度的自由度，并且具有从微米到米尺度的经济实惠和快速成型的特点。在这项工作中，通过合理的墨水设计和配方，OIF在环境条件下完全通过喷墨打印制成。制备了长波通、短波通、带通和二向色性OIF，并实现了对OIF光谱响应的精确控制。随后，通过喷墨打印实现了OIF的定制横向图案化。此外，还展示了将打印的OIF放大到A4尺寸（29.7×21.0平方厘米）。
