Stacked film threshold component, device, and method of manufacture

摘要

A component includes a micro-hologram layer, where the micro-hologram layer includes layers inert to light interleaved with layers of functional film. The functional film layers 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 components may further include interleaved spacer films with multiple micro-hologram layers and other elements (e.g., servo layer, coatings, and the like) so as to comprise a data storage device. Methods of manufacturing the component and device are also disclosed.

主权项

1. A component comprising:
a micro-hologram layer, wherein the micro-hologram layer comprises a plurality of layers inert to light interleaved with a plurality of functional film layers, wherein the plurality of functional film layers comprise a material that undergoes a change in its refractive index when illuminated by a first light beam and undergoes no change in its refractive index when illuminated by a second light beam; and a plurality of spacer films interleaved with the micro-hologram layer, wherein a first micro-hologram layer and a second micro-hologram layer respond to two different wavelengths during readout.