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, Yanlei Hu, Jiawen Li, Zhaoxin Lao, Bing Xu, Jincheng Ni, Ze Cai, Dong Wu, 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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