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In-doped ZnO (IZO) nanowires were prepared using the chemical vapour deposition method. The nonlinear optical characteristic and optical Kerr transmittance of the IZO nanowires were studied by Z-scan and time resolved optical Kerr gate technique, respectively. Two and three-photon absorption coefficient of the samples were experimental obtained. Moreover, with an 800 nm femtosecond excitation, an important Kerr signal originated by an induced birefringence was observed. These studies promise their potential applications in multifunctional all-optical devices. [ABSTRACT FROM AUTHOR]

We present the structure and nonlinear absorption (NLA) properties of Cu-doped ZnO (CZO) films prepared by magnetron sputtering. The films were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The results show that the CZO films can maintain a wurtzite structure. Furthermore, the open-aperture (OA) Z-scan measurements of the film were carried out by nanosecond laser pulse. A transition from saturable absorption (SA) to reverse saturable absorption (RSA) was observed as the excitation intensity increasing. With good excellent nonlinear optical coefficient, the samples were expected to be the potential applications in optical devices. [ABSTRACT FROM AUTHOR]