Tailored hybrid hyperbranched polyglycidol-silica nanocomposites with high third-order nonlinearity

Postnova, Irina, Bezverbny, Alexander, Golik, Sergey, Kulchin, Yury, Li, Haiqing, Wang, Jing, Kim, Il, Ha, Chang-Sik and Shchipunov, Yury (2012) Tailored hybrid hyperbranched polyglycidol-silica nanocomposites with high third-order nonlinearity. International Nano Letters, 2 13.1-13.4. doi:10.1186/2228-5326-2-13


Author Postnova, Irina
Bezverbny, Alexander
Golik, Sergey
Kulchin, Yury
Li, Haiqing
Wang, Jing
Kim, Il
Ha, Chang-Sik
Shchipunov, Yury
Title Tailored hybrid hyperbranched polyglycidol-silica nanocomposites with high third-order nonlinearity
Journal name International Nano Letters   Check publisher's open access policy
ISSN 2008-9295
2228-5326
Publication date 2012-07-12
Sub-type Letter to editor, brief commentary or brief communication
DOI 10.1186/2228-5326-2-13
Open Access Status DOI
Volume 2
Start page 13.1
End page 13.4
Total pages 4
Place of publication Kermanshah, Iran
Publisher Danishgah-i Azad-i Islami
Collection year 2013
Language eng
Abstract One of the most convenient techniques for optical material fabrication is the sol–gel processing. It can be performed at low temperature that enables one to entrap even relatively unstable organic substances into silica matrix at the nanometer scale, thus developing homogeneous hybrid organic–inorganic nanocomposite materials of various functionalities. Here, novel hybrid organic–inorganic nanocomposites with good optical transparency and high third-order nonlinearity were prepared biomimetically through the mineralization of dendritic macromolecules (hyperbranched polyglycidols) using a compatible ethylene glycol-containing silica precursor. The synthesis was performed at neutral pH media in aqueous solutions without addition of organic solvents at ambient conditions owing to the catalysis of processing. Polyglycidols provided also the formation of gold nanoparticles localized in their core. They served as reducing and stabilizing agents. It is shown that trace amounts of nanoparticles could regulate nonlinear properties of a nanocomposite. High nonlinearity manifests itself in a supercontinuum generation at remarkably short lengths ca. 1 mm. The phenomenon consists of filamentous intense white lighting due to the spectral broadening of initial ultrashort (femtosecond) laser pulses propagating through the material. The developed hybrid nanocomposites possessing large nonlinearity, high-speed optical response, stability under intense lighting, lowcost, and easy preparation are promising for a diverse range of applications as active components for all-optical signal processing from chemical sensing to biological cell imaging and lighting control in telecommunication.
Q-Index Code CX
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Letter to editor, brief commentary or brief communication
Collections: Non HERDC
Australian Institute for Bioengineering and Nanotechnology Publications
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Fri, 12 Apr 2013, 00:35:28 EST by Haiqing Li on behalf of Aust Institute for Bioengineering & Nanotechnology