22 June 2013 Individually controlled multi-focus on a line for two-photon polymerization based on computer-generated holograms
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Proceedings Volume 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013); 87691T (2013) https://doi.org/10.1117/12.2021074
Event: International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 2013, Singapore, Singapore
Abstract
Two-photon polymerization is a powerful technique in the area of functional micro/nano device fabrication. The greatest limiting factor in widespread use of this technique is the low efficiency because the structure is fabricated by point-by-point scanning. In recent years, computer generated hologram is used for parallel fabrication via multi foci. In this paper, we proposed a new rapid fabrication method which use desirable multi-focus pattern as scanning cell instead of single focus point or foci array to polymerize. We establish a femtosecond laser experimental setup involved in a liquid crystal spatial light modulator. The computer generated hologram pattern on spatial light modulator is used to produce desirable foci array. The position and intensity of each focus in the pattern can be controlled well by optimal design. We use multi foci in a line as scanning cell to fabricate some revolving structure and the Fresnel lens can be expected. This work provides a new method to greatly improve the efficiency of two-photon polymerization production in fabricating revolving structures.
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Jiawen Li, Jiawen Li, Liang Yang, Liang Yang, Yanlei Hu, Yanlei Hu, Chenchu Zhang, Chenchu Zhang, Jiaru Chu, Jiaru Chu, Wenhao Huang, Wenhao Huang, } "Individually controlled multi-focus on a line for two-photon polymerization based on computer-generated holograms", Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 87691T (22 June 2013); doi: 10.1117/12.2021074; https://doi.org/10.1117/12.2021074
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