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Erasable thermal phase change super resolution (EPSR) disks composed of mask and recording layers can be fabricated with a 揵elow-diffraction-limited?aperture within the readout spot to achieve optical...
A 揵elow-diffraction-limited?aperture within the readout spot for high-density recording can be achieved on erasable thermal phase change super resolution (EPSR) disks. Compared to the large aperture w...
We investigated the microstructure of phase change optical disks subjected to various initialization conditions using transmission electron microscopy (TEM). The effects of initialization powers on th...
Multilevel recording has an advantage of increasing the recording density without extensively altering altering the current optical configuration.Four-level recording schemes in phase-change disks usi...
Tellurium was studied as a mask film in a thermally induced superresoulution rewritable optical disk for detecting below-diffraction-limit marks.Mark trains of 0.15 could be retrieved with 9dB in carr...
Comprehensive analyses based on the rigorous vector diffraction theory were used to simulate the polarized readout signals using a solid immersion lens (SIL) in reading phase change (PC) disks. For an...
Nitrogen and oxygen co-doped GeSbTe films for phase-change optical recording are investigated. It is found that optical properties of amorphous and crystalline state are similar to that of GeSbTe, cry...
This work investigated the enhancement of the data transfer rate and/or recrystallization speed of Ge–In–Sb–Te recording material by nitrogen doping. The effects of nitrogen content on the dynamic pro...
In this work, we studied the enhancement of overwriting characteristics of phase-change optical disks by doping in the dielectric layers. The doping elements included chromium (Cr), molybdenum (Mo), n...
This work investigates the thermal, optical and recrystallization properties as well as the microstructure of nitrogen-doped Ge–In–Sb–Te (GIST) phase-change material when irradiated by blue-light lase...
We carried out a feasibility study on rewritable phase-change optical disks with more than two recording layers. Dynamic recording-playing evaluations of the test disks and Tx measurements revealed th...

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