a thick sol-gel inorganic layer for optical planar waveguide applications
adstract
the laponite films elaboration is based on the sol-gel process and dip-coating technique. the films are dried at 120'c and heat-treated at higher temperature up to 600'c with out deterioration of their quality. three micrometer thick and crack-free films are obtained in only one coating by dipping a substrate into a well-controlled viscous solution. by this way 9 um high quality thick films have been prepareed using three successive coatings and adapted heat treatment.