Two-photon direct laser writing of ultracompact multi-lens objectives
Two-photon direct laser writing of ultracompact multi-lens objectives
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DOI：
10.1038/nphoton.2016.121
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发表时间：
2016-08-01
期刊：
影响因子：
35
通讯作者：
Giessen, Harald
中科院分区：
文献类型：
--
作者：
Gissibl, Timo;Thiele, Simon;Giessen, Harald
当前的透镜系统在大小、形状和尺寸上受到制造的限制。需要具有非球面形状的多透镜元件以实现高光学性能并在以广角和大视场成像时校正像差。在这里，我们提出了一种新的光学概念，克服了所有上述困难，并开辟了具有复杂透镜设计的3D打印微米和纳米光学器件的新领域。我们展示了完整的工艺链，从光学设计，飞秒双光子直接激光写入和测试的制造到尺寸约为100 μ m的多透镜物镜的应用，并通过定量测量调制传递函数和像差来验证其高性能和功能。我们的方法前所未有的灵活性为印刷光学微型仪器铺平了道路，如内窥镜，用于细胞生物学的光纤成像系统，新的照明系统，微型光纤陷阱，集成量子发射器和探测器，以及具有自主视觉的微型无人机和机器人。
Current lens systems are restricted in size, shape and dimensions by limitations of manufacturing. Multi-lens elements with non-spherical shapes are required for high optical performance and to correct for aberrations when imaging at wide angles and large fields. Here we present a novel concept in optics that overcomes all of the aforementioned difficulties and opens the new field of 3D printed micro- and nano-optics with complex lens designs. We demonstrate the complete process chain, from optical design, manufacturing by femtosecond two-photon direct laser writing and testing to the application of multi-lens objectives with sizes around 100 mu m, and validate their high performance and functionality by quantitative measurements of the modulation transfer function and aberrations. The unprecedented flexibility of our method paves the way towards printed optical miniature instruments such as endoscopes, fibre-imaging systems for cell biology, new illumination systems, miniature optical fibre traps, integrated quantum emitters and detectors, and miniature drones and robots with autonomous vision.