Nonlinear optical properties of Ag/PMMA nanocomposite polymer film
- Resource Type
- Conference
- Authors
- Deng, Yan; Wang, Pei; Sun, You-Yi; Ming, Hai; Zhang, Qi-Jing; Jiao, Yang; Sun, Xiao-Quan
- Source
- 2006 International Symposium on Biophotonics, Nanophotonics and Metamaterials Biophotonics, Nanophotonics and Metamaterials, 2006. Metamaterials 2006. International Symposium on. :373-376 Oct, 2006
- Subject
- Bioengineering
Photonics and Electrooptics
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Nonlinear optics
Optical films
Optical polymers
Polymer films
Optical refraction
Optical variables control
Ultrafast optics
Nonlinear optical devices
Electromagnetic wave absorption
Optical devices
- Language
We prepared Ag/PMMA nanocomposite polymer film by a simple in situ synthesis and measured their linear and nonlinear optical properties to evaluate their potential applications to all-optical devices. The linear absorption spectrum has shown the increase of absorption intensity in the presence of Ag nanoparticles. Nonlinear optical properties were studied using Z-scan technique with 13ns pulse duration at 532nm. The nonlinear refractive index γ and nonlinear absorption coefficient ß of Ag/PMMA nanocomposite polymer film were measured to be 5.781×10 -2 cm 2 /GW and 2.225×10 3 cm/GW, respectively. Giant enhancement of nonlinear optical responses was found for Ag/PMMA nanocomposite polymer film compared with pure PMMA (Polymethyl Methacrylate) film. The results indicate that the enhancements of linear and nonlinear optical properties were caused by the surface plasmon resonance of Ag nanoparticles. Analyzed with respect to Stegeman figures of merit, the Ag/PMMA nonlinear polymer film show promise for practical use in ultrafast optical devices.