| 摘要 |
<p>A data storage device includes optical media or magneto-optic media. Formed on the optical or magneto-optic media is an amorphous or a substantially amorphous ZrO2 layer (102; 204). The ZrO2 layer is typically formed by sputtering, and includes an additive which renders the ZrO2 either amorphous or substantially amorphous. Because of the amorphous or near amorphous nature of the ZrO2 film (102, 204), noise is not introduced into a laser beam signal passing therethrough by crystal grain boundaries in the film (102, 204). In addition, because the film (102, 204) is substantially amorphous, birefringence will not generate noise in the laser passing therethrough caused by polymorphism in the film (102, 204). <IMAGE></p> |
