Journal
MATERIALS RESEARCH BULLETIN
Volume 48, Issue 11, Pages 4667-4672Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2013.08.032
Keywords
Composites; Optical materials; Electron microscopy; Optical properties
Categories
Funding
- National Natural Science Foundation of China [61308094]
- International Science & Technology Cooperation Program of China [2011DFA12040]
- National Program on Key Basic Research Project (973 Program) [2012CB722703]
- Program for Innovative Research Team of Ningbo City [2009B21007]
- State Key Laboratory of Luminescent Materials and Devices (South China University of Technology)
- Zhejiang Provincial Natural Science Foundation of China [LQ12F05003]
- K.C. Wong Magna Fund in Ningbo University
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We report the synthesis of silver nano-crystals (Ag-NCs) composited bismuthate glasses through a single-step thermal reduction approach. The Ag-NCs show broad surface plasmon resonance (SPR) absorption bands with spectral coverage from visible to near infrared region. Bi2O3 is found to be the key factor to the formation of Ag-NCs, e.g. their number density varies significantly and the corresponding SPR red-shifts as Bi2O3 content increased. Third-order optical nonlinearities (TON) of the silver-bismuthate nanocomposites were investigated by Z-scan and pump-probe techniques at the wavelength of 800 nm. The experimental results revealed SPR-assisted behavior and ultrafast temporal response (less than 100 fs) of TON properties of the nanocomposites. (C) 2013 Elsevier Ltd. All rights reserved.
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