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Proceedings Paper

Study on the influence of Fs-laser power on the entrance morphology of vessel microfluidic chips
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Paper Abstract

The law of energy conservation and the heat conduction equation were used to study the influence characteristics of the fs-laser power density on the entrance morphology of vessel micro-channels. Meanwhile, PMMA basis material of fs-laser irradiation was studied in this research, and the theoretical analysis model was established to deduce the relational expression between laser power and the melting temperature of PMMA basis material. The finite element software was adopted to make a simulation analysis of the temperature field changes of PMMA basis material at micro-channel entrance when the fs-laser was set at different powers. In addition, the ultra-field depth digital 3D microscope, scanning electronic microscope (herein referred to as SEM) and white light interferometer were also used to test and analyze the influence of fs-laser at different powers on the morphological and structural characteristics of the post-irradiation PMMA basis material. Test results showed that: PMMA melting conditions could be satisfied but the thermal conditions could not be met at the laser power (1W) and the spot radius (1mm). The processed micro-channel entrance was round and good in surface quality.

Paper Details

Date Published: 29 March 2019
PDF: 13 pages
Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110461U (29 March 2019); doi: 10.1117/12.2519714
Show Author Affiliations
Bangfu Wang, Jiangsu Univ. (China)
Suzhou Univ. of Science and Technology (China)
Zhongwang Wang, Suzhou Univ. of Science and Technology (China)
Wenyu Ding, Suzhou Univ. of Science and Technology (China)
Juan Song, Suzhou Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 11046:
Fifth International Symposium on Laser Interaction with Matter
YiJun Zhao, Editor(s)

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