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Information Journal Paper

Title

TAILORED HYBRID HYPERBRANCHED POLYGLYCIDOL-SILICA NANOCOMPOSITES WITH HIGH THIRD-ORDER NONLINEARITY

Pages

  1-4

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 lengthsca.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.

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    Cite

    APA: Copy

    POSTNOVA, IRINA, BEZVERBNY, ALEXANDER, GOLIK, SERGEY, KULCHIN, YURY, LI, HAIQING, WANG, JING, KIM, IL, HA, CHANG SIK, & SHCHIPUNOV, YURY. (2012). TAILORED HYBRID HYPERBRANCHED POLYGLYCIDOL-SILICA NANOCOMPOSITES WITH HIGH THIRD-ORDER NONLINEARITY. INTERNATIONAL NANO LETTERS (INL), 2(2), 1-4. SID. https://sid.ir/paper/321386/en

    Vancouver: Copy

    POSTNOVA IRINA, BEZVERBNY ALEXANDER, GOLIK SERGEY, KULCHIN YURY, LI HAIQING, WANG JING, KIM IL, HA CHANG SIK, SHCHIPUNOV YURY. TAILORED HYBRID HYPERBRANCHED POLYGLYCIDOL-SILICA NANOCOMPOSITES WITH HIGH THIRD-ORDER NONLINEARITY. INTERNATIONAL NANO LETTERS (INL)[Internet]. 2012;2(2):1-4. Available from: https://sid.ir/paper/321386/en

    IEEE: Copy

    IRINA POSTNOVA, ALEXANDER BEZVERBNY, SERGEY GOLIK, YURY KULCHIN, HAIQING LI, JING WANG, IL KIM, CHANG SIK HA, and YURY SHCHIPUNOV, “TAILORED HYBRID HYPERBRANCHED POLYGLYCIDOL-SILICA NANOCOMPOSITES WITH HIGH THIRD-ORDER NONLINEARITY,” INTERNATIONAL NANO LETTERS (INL), vol. 2, no. 2, pp. 1–4, 2012, [Online]. Available: https://sid.ir/paper/321386/en

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