The optical storage and its production manner of high sensitivity and the optical memory storage and the optical reproducing arrangement null which include that kind of optical

摘要

An optical data storage system employing a data-modulated writing laser beam (12a) and non-erasing reading laser beam (12b) of predetermined wavelength along with an improved optical medium (15) comprised of multiple layers whose optical characteristics and thicknesses are chosen in conjunction with the writing and reading laser beams to provided an anti-reflection condition for unrecorded portions of the medium and a relatively high reflective aluminium layer (94), a fluorinated hydrocarbon polymer spacer layer (96) overlaying the reflective layer, a nucleation layer overlaying the spacer layer and also serving as a heat insulator therefor, and a gold absorber layer (98) overlaying the nucleation layer.