Published online by Cambridge University Press: 21 February 2011
We have investigated the deposition of titanium lines from TiCl4 induced by KrF excimer laser (248 nm). Substrates are primarily LiNbO3, for the possible formation of Ti:LiNbO3 optical waveguides, as well as silicon and glass. Titanium lines contain [Cl] < 2 at% and are typically 200 to 1000 Angstroms thick with a width ranging from 3 to 20 μm. Results suggest that the process is controlled by photochemistry of TiCl4 but it is difficult at this point to assert which of the gas or adsorbed layer is the primary source of thin film growth.