Nonlinear optical and optical limiting properties of new structures of organic nonlinear optical materials for photonic applications

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（4）
• 页码范围: 68-72
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL201311.041902

摘要

The nonlinear optical (NLO) and optical limiting (OL) properties of three new structures of organic NLO guest-host Poly(N-vinylcarbozole)/disperse orange 3 (PVK/DO3),PVK/disperse orange 13 (PVK/DO13),and PVK/disperse orange 25 (PVK/DO25) as a solution at different concentrations and as a thin-film sample are studied using continuous wave z-scan system at 532 nm.The open-aperture z-scan data of the NLO materials in the solution and thin-film samples displayed two-photon and saturable absorptions,respectively.The PVK/DO13 exhibites the largest and best values of the nonlinearities,such as n2,β,x(3),compared with those of PVK/DO3 and PVK/DO25.This nonlinearity increases as the concentration increases.The results indicate that these NLO materials are good candidates for optical switching and OL devices.