Chinese Optics Letters, 2008, 6 (2): 0290, Published Online: Mar. 5, 2008
Polymer gratings based on photopolymerization for low-order distributed feedback polymer lasers Download: 548次
聚合物 分布反馈激光器 光栅 050.0050 Diffraction and gratings 220.0220 Optical design and fabrication 310.0310 Thin films 250.0250 Optoelectronics
Abstract
Novel polymer distributed feedback (DFB) gratings are fabricated based on photopolymerization to reduce lasing threshold of polymer lasers. A photopolymer formulation sensitive to 355-nm ultraviolet (UV) light is proposed for the fabrication of polymer gratings and it can be used to form polymer films by spin-coating process. A very low surface-relief depth ranging from 12.5 to about 1.0 nm has been demonstrated with a refractive-index modulation of about 0.012. The experimental results indicate that such polymer gratings have promising potentials for the fabrication of low-order DFB organic semiconductor lasers.
Xuanke Zhao, Qingwu Zhao, Qinghua Zhang. Polymer gratings based on photopolymerization for low-order distributed feedback polymer lasers[J]. Chinese Optics Letters, 2008, 6(2): 0290.