11 March 2016 Single-exposure multiphoton fabrication of polygonized structures by an SLM-modulated Fresnel zone lens
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Abstract
Recently, annular beams have been developed to rapidly fabricate microscope tubular structures via two-photon polymerization, but the distribution of the light field is limited to a ring pattern. Here a Fresnel lens is designed and applied to modulate the light field into a uniform quadrangle or hexagon shape with controllable diameters. By applying a spatial light modulator to load the phase information of the Fresnel lens, quadrangle and hexagon structures are achieved through single exposure of a femtosecond laser. A 3×6 array of structures is made within 9 s. Comparing with the conventional holographic processing, this method shows higher uniformity, high efficiency, better flexibility, and easy operation. The approach exhibited a promising prospect in rapidly fabricating structures such as tissue engineering scaffolds and variously shaped tubular arrays.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Chenchu Zhang, Chenchu Zhang, Yanlei Hu, Yanlei Hu, Jiawen Li, Jiawen Li, Zhaoxin Lao, Zhaoxin Lao, Bing Xu, Bing Xu, Jincheng Ni, Jincheng Ni, Ze Cai, Ze Cai, Dong Wu, Dong Wu, Jiaru Chu, Jiaru Chu, } "Single-exposure multiphoton fabrication of polygonized structures by an SLM-modulated Fresnel zone lens," Optical Engineering 55(3), 035102 (11 March 2016). https://doi.org/10.1117/1.OE.55.3.035102 . Submission:
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