titane (1) laser (1) chauffage (1) diffusion (1) ligne (1) densité (1) Density (1) Writing (1) Titanium (1) Photons (1) Optical wave guides (1) Lithium niobate (1) Heating (1) Excimer lasers (1) Diffusion (1) Density (1) Writing (1) Number (1) Heating (1) diffusion (1)