Title :
Polymer-TiO2 hybrid nanocomposites for all-optical switching
Author :
Ji, W. ; Elim, H.I. ; Yuwono, A.H. ; Xue, J.M. ; Wang, J.
Author_Institution :
Dept. of Phys., Nat. Univ. of Singapore, Singapore
Abstract :
Large and ultrafast cubic optical nonlinearities in thin films containing poly (methyl methacrylate) (PMMA)-TiO2 nanocomposites were observed using 780-nm, 250-fs laser pulses. The recovery times of the nonlinearities were found to be ∼1.5 ps. The best figures of merit were obtained in one of the films prepared with a 60% weight percentage of titanium isopropoxide. These findings strongly suggest a potential application of PMMA-TiO2 nanocomposites for all-optical switching devices.
Keywords :
high-speed optical techniques; laser beam effects; nanocomposites; nonlinear optics; optical communication equipment; optical polymers; optical switches; thin films; titanium compounds; 250 fs; 780 nm; PMMA; TiO2; hybrid nanocomposites; optical switches; polymer-TiO2; polymethyl methacrylate; thin films; titanium isopropoxide; ultrafast cubic optical nonlinearity; Nanocomposites; Polymers;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1274551
