Inorganic Write Once Media

Abstract

A write-once disk with AlSi alloy was proposed and studied. A jitter of 6.5% and a modulation of larger than 0.8 were obtained at a linear velocity of 8.4 m/s. Jitter is less than 5% in the blue laser system at a clock frequency of 66 MHz and a linear speed of 8.25 m/s for track pitch of 0.68 and 0.45 µm disk.

The Nanocomposite Thin Film Applied to High-Density Write-Once Optical Data Storage

“…For write-once HD-DVDs and BDs, the recording materials can be either organic dyes 1,2) or inorganic metallic alloys. 3) Phase-change-based alloys, 4) single-layer AlSi alloys, 5,6) bilayer metals such as Cu/Si 7) and Zn/Ge, 8) and metallic nitrides 9) have been reported for write-once disk applications. However, regardless of the recording material types, complicated 4 to 8 multilayer structures consisting of lower and upper dielectric layers, a recording layer, a space layer, and a reflection layer are usually required for the optical disks to ensure a reliable lifetime for data storage.…”

Phase-Change Kinetics of Bi–Fe–(N) Layer for High-Speed Write-Once Optical Recording

“…At present, recording materials compatible with blue-laser recording are of particular interest. For such materials, organic ones are dyes that are sensitive to blue irradiation while inorganic ones include phase-change-based alloys, 5,6) AgInSbTe-SiO 2 nanocomposite films, 7,8) single layer metals such as AlSi alloys, 9,10) bismuth oxide (BiFeO) [11][12][13] and Bi-Fe-(N) layer, 14) and bilayer metals such as Ge/Au, [15][16][17][18] Cu/Si, 19) ZnO/Ge, 20) amorphous silicon (a-Si)/Cu, [21][22][23][24] a-Si/Al, 24,25) a-Si/Ni, [26][27][28] and Bi/Ge. 29,30) In our previous study, 14) the Bi-Fe-(N) system was demonstrated to be a promising medium for high-density write-once recording.…”

Phase Transition Kinetics and Recording Characteristics of Nanocomposite Layers Prepared by Sputtering Process Utilizing AgInSbTe–SiO2 Composite Target

“…Both organic and inorganic materials have been proposed for write-once recording purposes. [8][9][10] The inorganic materials include phase-change-based alloys, 11) single-layer alloys such as AlSi 12,13) and Bi-Fe-(N), 14) and bi-layer metals such as Cu/Si, 15) Zn/Ge, 16) Ge/Au, 17) and Cu/amorphous silicon (a-Si). 18) Recently, nanocomposite films applied to super-resolution near-field structure (super-RENS) optical disks [19][20][21] and signal recording 22,23) have been reported.…”