Transparent Ag-TiO2-PMMA composite for optical limiting
XIAOYUN XU1,2,*
Affiliation
- Guangzhou City University of Technology, Guangzhou 510800, China
- Key Laboratory of Polymer Processing Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510641, China
Abstract
The construction of the optical limiting materials is of great technological important for various applications such as in laser
surgery, laser machining, optical communication and spectroscopy analysis. Despite of the great progress in development of
optical non-linear materials, it still remains a great challenge for construction of optical limiting materials with combinative
features of easy processing, strong optical limiting effect and broadband spectra response. Here we present the design and
synthesis of the Ag-TiO2-PMMA composite and characterization of its structure and optical properties. The composite is
featured by the PMMA matrix embedded with the functional Ti-O structure units and Ag nanostructures. The composite is
highly transparent and can be potentially shaped into various shapes. It presents broadband optical response covering the
ultra-violet, visible and near-infrared waveband region from 200 to 750 nm. The nonlinear absorption coefficient of the
composite is about 7 times higher compared with that of the pure PMMA. The application of the composite as optical limiting
candidate is demonstrated and the optical limiting threshold of the composite reaches to 169.4 GW/cm2
. The results about
the rational combination of the functional structure units in the composite provide valuable references for developing the next
generation optical functional material.
Keywords
Ag, TiO2, PMMA, Transparent composite, Optical limiting.
Citation
XIAOYUN XU, Transparent Ag-TiO2-PMMA composite for optical limiting, Optoelectronics and Advanced Materials - Rapid Communications, 16, 1-2, January-February 2022, pp.61-67 (2022).
Submitted at: Nov. 1, 2021
Accepted at: Feb. 10, 2022