Journal
OPTICAL MATERIALS
Volume 51, Issue -, Pages 133-138Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2015.11.039
Keywords
Nonlinear optics; Materials; Thin films; Optical properties; Multiphoton processes
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Funding
- National Natural Science Foundation of China [11504072, 61405032]
- Natural Science Foundation of Heilongjiang Province [A201304, ZD201401]
- Scientific Research Fund of Heilongjiang Provincal Education Department [12541231]
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We present the structural and nonlinear optical behavior of Ag-doped ZnO (AZO) films prepared by magnetron sputtering. The structural of AZO films are systematically investigated by X-ray diffraction (XRD) and scanning electronic microscopy (SEM), respectively. The results show that AZO films can still retain a wurtzite structure, although the c-axis as preferred orientation is decreased by Ag doping. As the amounts of the Ag dopant were increased, the crystallinity as well as the absorptivity and optical band gap were increased. Moreover, the nonlinear optical characterized of the AZO films was studied using Z-scan technique. These samples show self-defocusing nonlinearity and good nonlinear absorption behavior which increases with increasing Ag volume fraction. AZO is a potential nanocomposite material for the development of nonlinear optical devices with a relatively small limiting threshold. (C) 2015 Elsevier B.V. All rights reserved.
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