Rapid fabrication of hollow double helix microrobot using femtosecond laser dynamic holograpic method
|更新时间:2021-07-28
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Rapid fabrication of hollow double helix microrobot using femtosecond laser dynamic holograpic method
Optics and Precision EngineeringPages: 1-7(2021)
作者机构:
中国科学技术大学 精密机械与精密仪器系, 安徽 合肥 230027
作者简介:
E-mail: jwl@ustc.edu.cn
基金信息:
DOI:
CLC:TN249
Received:10 March 2021,
Revised:30 March 2021,
稿件说明:
移动端阅览
宋博文,李家文.中空双螺旋微机器人的飞秒激光动态全息高效加工[J].光学精密工程,
SONG Bo-wen,LI Jia-wen.Rapid fabrication of hollow double helix microrobot using femtosecond laser dynamic holograpic method[J].Optics and Precision Engineering,
SONG Bo-wen,LI Jia-wen.Rapid fabrication of hollow double helix microrobot using femtosecond laser dynamic holograpic method[J].Optics and Precision Engineering,DOI:10.37188/OPE..0001
Rapid fabrication of hollow double helix microrobot using femtosecond laser dynamic holograpic method
In order to realize the rapid mass fabrication of microrobots, in this study, a femtosecond Bessel beam superposition interference method is proposed to generate a circular light with side lobes, which combining with dynamic holographic processing allows efficiently fabricating hollow helix microrobots. Firstly, the Bessel holograms generated according to the Bessel transmission function are superposed and the generated light field is simulated and experimentally measured. Then, ring structures with different number of side lobes (2-4) are fabricated by using the superimposed holograms, and the effect of two different parameters on the width of side lobe and the diameter of ring is analyzed. After that, hollow double helix microrobots with width of 25 µm and length of 100 µm are rapidly fabricated by introducing dynamic holographic processing method. Finally, microrobots are drived by rotating magnetic field in microfluidic environment. Experimental results indicate that it takes only 6 s to process a microrobot and the microrobot advances 400 µm in a straight line in 7 s under rotating magnetic field. This method provides a promising way for mass manufacturing of helix microrobot and has immense application such as noninvasive surgery and drug delivery.
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references
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