H. Okawa, M. Sekiya, Junichiro Osawa
Feb 1, 1991
Citations
0
Influential Citations
8
Citations
Journal
Polymer Journal
Abstract
The nonlinear optical properties of poly(1,9-decadiyne) (PDD), which has a diacetylene group in the main chain, were investigated. Using as-prepared films of PDD, no third harmonic generation (THG) was observed. However, after thermal treatment of PDD films, THG appeared and the third order susceptibility, χ(3), was determined to be 1.2×10−12 esu. These heat-treated films were very clear and had no absorption between 600 and 2500 nm. A slab waveguide of polymer thin film was formed on a quartz substrate and its light propagation properties was investigated.