| 摘要 |
PROBLEM TO BE SOLVED: To provide a stacked film threshold component, a device, and a method of manufacture.SOLUTION: A component includes a micro-hologram layer (10), and the micro-hologram layer (10) includes layers (14) inert to light and interleaved with functional film layers (12). The functional film layers (12) are made of a material that undergoes a change in its refractive index when illuminated by a light beam, yet undergoes no change in its refractive index when illuminated by a different light beam. The component (30) may further include spacer films (20) interleaved with the multiple micro-hologram layers (10), and other elements (e.g., servo layer (44), coatings (48), and the like (40, 42)) so as to constitute a data storage device (100). Methods of manufacturing the component and the device are also disclosed. |
