Rapid Two‐Photon Polymerization of an Arbitrary 3D Microstructure with 3D Focal Field Engineering,Macromolecular Rapid Communications

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Rapid Two‐Photon Polymerization of an Arbitrary 3D Microstructure with 3D Focal Field Engineering
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2019-03-12 , DOI: 10.1002/marc.201900041
Dong Yang ₁ , Lipu Liu ₁ , Qihuang Gong _{1,

2} , Yan Li _{1,

2}

Affiliation

Two‐photon polymerization is a powerful method for three‐dimensional (3D) precision nanofabrication. To facilitate the fabrication speed, for the first time, single‐exposure or single‐scan two‐photon polymerization of an arbitrary 3D microstructure with smaller or larger volume is demonstrated through focal field engineering. The constraints and the initial conditions of the Gerchberg–Saxton algorithm for the retrieval of the incident wavefront are adapted for the shape fidelity and the smoothness of the 3D focal field intensity distribution. As a result, a small 3D microstructure can be polymerized by a single exposure within 0.1 s, while a larger one can be formed by continuous polymerization of slices of the structure with one‐dimensional single scan with a speed of 6 µm s⁻¹. The microlenses that generate vortex beams with different orbital angular momentums are polymerized to demonstrate the high fabrication precision. These pave the way for the rapid two‐photon polymerization of arbitrary 3D structures.

中文翻译：

借助3D焦点领域工程技术对任意3D微观结构进行快速的双光子聚合

两光子聚合是进行三维（3D）精密纳米加工的有力方法。为了提高制造速度，这是首次通过焦点领域工程技术演示了具有较小或较大体积的任意3D微观结构的单曝光或单扫描双光子聚合。Gerchberg-Saxton算法用于检索入射波前的约束条件和初始条件适用于3D聚焦场强度分布的形状保真度和平滑度。结果，小的3D微观结构可以在0.1 s内通过单次曝光进行聚合，而更大的3D微观结构可以通过以6 µm s ^-1的一维单次扫描连续扫描结构的切片来形成。。产生具有不同轨道角动量的涡旋光束的微透镜被聚合以显示出高的制造精度。这些为任意3D结构的快速双光子聚合铺平了道路。

更新日期：2019-03-12

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