This paper studies the quality of lines and surfaces fabricated by the two-photon polymerization (TPP) technology. Micro lines and surfaces fabricated by TPP are accumulation of micro spots, and their external shapes can be simulated and predicted from manufacturing parameters, such as laser power, exposure time, scanning speed, spot gap, and line gap. The correctness of predicted shapes is verified by measuring product shapes by SEM and AFM. The purpose of this study is to find the best parameters for increasing line smoothness and reducing surface roughness. Firstly, the total energy absorbed in each point within the work piece space is simulated by adding up all the laser spots of the scanning path. The point with absorbed exposure energy exceeding the resin threshold energy forms a polymerized spot of the product, and the product shape can be obtained. Secondly, micro lines and surfaces with different manufacturing parameters are fabricated and product shapes are measured by both SEM and AFM. The simulated shape and the measured shape of the product with specific manufacturing parameters are compared. Shapes from simulation and fabrication have the same trend. Results of this study can be applied in manufacturing TPP products with complex shapes for better surface quality.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.