Hsieh Yu-Hsiang, Cheng Yung-Cheng, Chung Te-Yuan
Department of Optics and Photonics, National Central University, No. 300 Chungda Rd., Chungli District, Taoyuan City, Taiwan 32001.
ACS Omega. 2022 Mar 28;7(14):11770-11776. doi: 10.1021/acsomega.1c06887. eCollection 2022 Apr 12.
PQ/PMMA photopolymer films fabricated by solvent casting are realized using tetrahydrofuran (THF) as the solvent. The corresponding photochemical reaction model is established with material parameters numerically studied based on 57 samples recorded with a 532 nm laser. The fabrication and the recording time are noticeably reduced. A 2-fold increase in the average refractive index variation is achieved compared with the two-step thermal polymerization method with the same PQ initial concentration.
通过溶液浇铸法制备的PQ/PMMA光聚合物薄膜是使用四氢呋喃(THF)作为溶剂实现的。基于用532nm激光记录的57个样品,建立了相应的光化学反应模型,并对材料参数进行了数值研究。制备和记录时间显著减少。与具有相同PQ初始浓度的两步热聚合方法相比,平均折射率变化提高了两倍。