Optical Design and Engineering

Single-exposure multiphoton fabrication of polygonized structures by an SLM-modulated Fresnel zone lens

[+] Author Affiliations
Chenchu Zhang, Yanlei Hu, Jiawen Li, Zhaoxin Lao, Bing Xu, Jincheng Ni, Ze Cai, Dong Wu, Jiaru Chu

University of Science and Technology of China, Department of Precision Machinery and Precision Instrumentation, Room 303, Third Mechanical Building, No. 443, Huangshan Road, Hefei, China

Opt. Eng. 55(3), 035102 (Mar 11, 2016). doi:10.1117/1.OE.55.3.035102
History: Received October 14, 2015; Accepted February 17, 2016
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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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Chenchu Zhang ; Yanlei Hu ; Jiawen Li ; Zhaoxin Lao ; Bing Xu, et al.
"Single-exposure multiphoton fabrication of polygonized structures by an SLM-modulated Fresnel zone lens", Opt. Eng. 55(3), 035102 (Mar 11, 2016). ; http://dx.doi.org/10.1117/1.OE.55.3.035102


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