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Issue 27, 2018
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Gold nanoparticle-decorated graphene as a nonlinear optical material in the visible and near-infrared spectral range

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Abstract

There have been numerous reports of boosting nonlinear optical phenomena in plasmonic nanostructures through local-field enhancement as well as through intrinsic metal nonlinearities. Here, we study the possibility of plasmonic enhancement of graphene's nonlinear absorption by creating a composite material: gold nanoparticle-decorated graphene dispersed in water. To evaluate the additive effect of combining the two materials on the saturable absorption efficiency we performed a series of f-scan (modified Z-scan) measurements using femtosecond laser pulses in the broad spectral range from 530 to 1600 nm. These studies are supplemented by TEM, UV-vis, ATR and Raman spectroscopy, revealing the mechanisms behind the formation of the composite material.

Graphical abstract: Gold nanoparticle-decorated graphene as a nonlinear optical material in the visible and near-infrared spectral range

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Publication details

The article was received on 17 Apr 2018, accepted on 20 Jun 2018 and first published on 20 Jun 2018


Article type: Paper
DOI: 10.1039/C8CP02439A
Citation: Phys. Chem. Chem. Phys., 2018,20, 18862-18872
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    Gold nanoparticle-decorated graphene as a nonlinear optical material in the visible and near-infrared spectral range

    K. Kinastowska, K. Piela, M. Gordel, A. Żak, R. Kołkowski and M. Samoć, Phys. Chem. Chem. Phys., 2018, 20, 18862
    DOI: 10.1039/C8CP02439A

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