In-Sio_2 cermet films for optical recording

In-SiCO(2) cermet films have been studied as optical recording media in metal film ablation memory. Specular surfaces and the minimum writing threshold laser power have been obtained in SiO(2) 40-60-vol.% composition. Pit formation processes have been studied by the temperature bias method, and the use of a trigger layer has been proposed for decreasing the writing laser power. Bi-Pb-Sn-In eutectic alloy and SiO(2) cermet film have also been examined. The 35-mJ/cm(2) writing threshold laser energy was obtained in this cermet and the phthalocyanine trigger layer construction. Cermet films are stable up to 500 degrees C and are also stable in water.