Femtosecond microburst multi-layer optical storage,which records data across multiple layers within a medium,promises to significantly expand the capacity limits of optical discs,potentially overcoming the issue of insufficient traditional optical disc storage.However,the process of data recording is affected by various factors,leading to a lack of theoretical basis for medium material selection.This study identified the bit error rate as key indicator of optical storage performance and compared the optical storage capabilities of different optical resins.The relationship between material mechanical properties,thermal properties,optical properties,dielectric constants,and the main chain structure with optical storage performance was quantified,revealing that the main chain structure of optical resins is the decisive factor affecting optical storage performance.Based on these findings,high-density multi-layer optical storages were conducted on polymethyl methacrylate materials,achieving a storage density of 1600 Gbit/cm3 with up to 60 layers.This research underscored the significance of main chain structure in enhancing optical storage performance,providing a perspective for material selection in femtosecond microburst multi-layer optical storage.
关键词
光存储/存储介质/飞秒激光/多光子吸收
Key words
optical data storage/storage medium/femtosecond laser/multi-photon absorption
维普
万方数据