Au/Ag nanoshuttles with sharp tips at both ends have been synthesized in glycine solution by chemically depositing silver on gold nanorods. Strong local field in the Au/Ag nanoshuttles enhanced by longitudinal surface plasmon resonance (LSPR) were investigated by theoretical calculations and experimental measurements. At the corresponding LSPR wavelengths, the extinction cross section and nonlinear refraction of the Au/Ag nanoshuttles are about 1.5 and 8.0 times of those of the original Au nanorods, respectively.
AlN films were deposited on Si (1 1 1) substrates by middle-frequency magnetron sputtering with and without anode-layer ion source assistance, and stoichiometric films were obtained. The structure and composition of the films were characterized by x-ray diffraction, atomic force microscopy and scanning electron microscopy. The films deposited under optimal conditions have strong diffraction of AlN (0 0 2) and a relatively weak diffraction of AlN (1 0 0), and the full width at half maximum of (0 0 2) peaks of these films falls in the range of 612–648 arcsec. The effect of the anode-layer ion source on the AlN film growth is discussed.
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