Nonlinear optical and multi-photon absorption properties in graphene–ZnO nanocomposites

Content Provider	Scilit
Author	Tong, Qing Wang, Yu-Hua Yu, Xiang-Xiang Wang, Bo Liang, Zhuang Tang, Meng Wu, An-Shun Zhang, Hai-Jun Liang, Feng Xie, Ya-Feng Wang, Jun
Copyright Year	2018
Description	Journal: Nanotechnology Graphene-ZnO (GZO) nanocomposites were synthesized by a modified solvothermal method and characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectra and UV-vis absorption spectra. The controllable nonlinear optical (NLO) properties of as-prepared GZO nanocomposites were tested by an open-aperture (OA) Z-scan method equipped with 1030 nm femtosecond laser pulses and it showed that the five photons absorption (5PA) at 46.8 GW/cm2, three photons absorption (3PA) at 28.1 GW/cm2, two photons absorption (2PA) at 18.7 GW/cm2 and a vital change from saturable absorption (SA) to reverse saturable absorption (RSA) with the increase of incident intensity were found in the graphene-metal nanocomposites. It was the first time to find 5PA in Graphene-ZnO nanocomposites at such low intensity, 46.8 GW/cm2. The tunable NLO property from SA to RSA and controllable multi-photon absorption provided a facile approach for their applications in optical, optoelectronic devices and information storage.
Related Links	http://iopscience.iop.org/article/10.1088/1361-6528/aaac13/pdf
ISSN	09574484
e-ISSN	13616528
DOI	10.1088/1361-6528/aaac13
Journal	Nanotechnology
Issue Number	16
Volume Number	29
Language	English
Publisher	IOP Publishing
Publisher Date	2018-01-31
Access Restriction	Open
Subject Keyword	Journal: Nanotechnology Condensed Matter Physics Reverse Saturable Absorption Saturable Absorption
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering