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Al2O3–TiC ceramics were processed with KrF excimer laser radiation (248 nm). The surface topography of the ablated Al2O3–TiC exhibits many conelike structures with a diameter of 10 µm and a column height of 30 µm. The surface roughness of Al2O3 at the base end surface is smooth, but the surface projection appears at the lateral face. The maximum height of irregularities (Rmax) of Al2O3–TiC is smaller than that of Al2O3 in the case of 0 to 50 pulses are used. However, the Rmax of Al2O3–TiC is higher than that of Al2O3 when over 50 pulses. Energy-dispersive X-ray spectroscopy (EDX) measurement reveals that the ablated conelike surface is composed of a material with high titanium content. EDX results show that the content of Al2O3 in Al2O3–TiC decreases markedly with an increase in fluence. [ABSTRACT FROM AUTHOR]

V2O5 thin films were prepared by pulsed laser deposition (PLD). Ag-doped V2O5 thin films were prepared by the reaction between V2O5 thin films and 1 M AgNO3 solution for 3 min. Photochromism and photoelectrochromism in V2O5 and Ag-doped V2O5 thin films were investigated. Absorption spectra measurement results show that V2O5 and Ag-doped V2O5 thin films are colored by ultraviolet light irradiation and bleached by visible light irradiation. Furthermore, we can conclude that the response of Ag-doped V2O5 thin films to ultraviolet light irradiation is rapid. Photoluminescence (PL) measurements show that the photochromic system of Ag-doped V2O5 thin films is by the photooxidation of Ag to Ag+. In the bleaching process by electrochemical method, the response of Ag-doped V2O5 thin films was better than that of V2O5 thin films. [ABSTRACT FROM AUTHOR]