TY - JOUR
T1 - Two-photon polymerization
T2 - Investigation of chemical and mechanical properties of resins using Raman microspectroscopy
AU - Jiang, Li Jia
AU - Zhou, Yun Shen
AU - Wei, Xiong
AU - Yang, Gao
AU - Xi, Huang
AU - Lan, Jiang
AU - Baldacchini, Tommaso
AU - Silvain, Jean Francois
AU - Lu, Yong Feng
PY - 2014/5/15
Y1 - 2014/5/15
N2 - In this study, the degree of conversion (DC) of an acrylic-based resin (IP-L 780) in two-photon polymerization (TPP) is systematically investigated via Raman microspectroscopy. A quantitative relationship between TPP laser parameters and the DC of the resin is established. Nonlinear increase in DC with increased laser average power is observed. The resin DC is more sensitive to the laser average power than the laser writing speed. Nanoindentation was employed to correlate the results obtained from Raman microspectroscopy with the mechanical properties of microstructures fabricated by TPP. At constant writing speeds, microstructures fabricated with high laser average powers possess high hardness and high reduced Young's modulus (RYM), indicating high DCs. The results are in line with high DCs measured under the same TPP parameters in Raman microspectroscopy. Raman microspectroscopy is proved to be an effective, rapid, and nondestructive method characterizing microstructures fabrication by TPP.
AB - In this study, the degree of conversion (DC) of an acrylic-based resin (IP-L 780) in two-photon polymerization (TPP) is systematically investigated via Raman microspectroscopy. A quantitative relationship between TPP laser parameters and the DC of the resin is established. Nonlinear increase in DC with increased laser average power is observed. The resin DC is more sensitive to the laser average power than the laser writing speed. Nanoindentation was employed to correlate the results obtained from Raman microspectroscopy with the mechanical properties of microstructures fabricated by TPP. At constant writing speeds, microstructures fabricated with high laser average powers possess high hardness and high reduced Young's modulus (RYM), indicating high DCs. The results are in line with high DCs measured under the same TPP parameters in Raman microspectroscopy. Raman microspectroscopy is proved to be an effective, rapid, and nondestructive method characterizing microstructures fabrication by TPP.
UR - http://www.scopus.com/inward/record.url?scp=84901045155&partnerID=8YFLogxK
U2 - 10.1364/OL.39.003034
DO - 10.1364/OL.39.003034
M3 - Article
AN - SCOPUS:84901045155
SN - 0146-9592
VL - 39
SP - 3034
EP - 3037
JO - Optics Letters
JF - Optics Letters
IS - 10
ER -