3D printing of optical materials: an investigation of the microscopic properties

被引:0
作者
Persano, Luana [1 ]
Cardarelli, Francesco [1 ]
Arinstein, Arkadii [2 ]
Uttiya, Sureeporn [1 ]
Zussman, Eyal [2 ]
Pisignano, Dario [1 ,3 ]
Camposeo, Andrea [1 ]
机构
[1] CNR, Ist Nanosci, NEST, Piazza S Silvestro 12, I-56127 Pisa, Italy
[2] Technion Israel Inst Technol, Dept Mech Engn, IL-32000 Haifa, Israel
[3] Univ Pisa, Dipartimento Fis, Largo B Pontecorvo 3, I-56127 Pisa, Italy
来源
ORGANIC PHOTONIC MATERIALS AND DEVICES XX | 2018年 / 10529卷
基金
欧洲研究理事会;
关键词
Photopolymerization; 3D printing; confocal microscopy; printed optical materials; FABRICATION; KINETICS; MICROMACHINES;
D O I
10.1117/12.2290495
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
3D printing technologies are currently enabling the fabrication of objects with complex architectures and tailored properties. In such framework, the production of 3D optical structures, which are typically based on optical transparent matrices, optionally doped with active molecular compounds and nanoparticles, is still limited by the poor uniformity of the printed structures. Both bulk inhomogeneities and surface roughness of the printed structures can negatively affect the propagation of light in 3D printed optical components. Here we investigate photopolymerization-based printing processes by laser confocal microscopy. The experimental method we developed allows the printing process to be investigated in-situ, with microscale spatial resolution, and in real-time. The modelling of the photo-polymerization kinetics allows the different polymerization regimes to be investigated and the influence of process variables to be rationalized. In addition, the origin of the factors limiting light propagation in printed materials are rationalized, with the aim of envisaging effective experimental strategies to improve optical properties of printed materials.
引用
收藏
页数:7
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