Abstract
Traditional reversible order⟺disorder( O,DO ) transformations in recording media of optical memory (OM ) caused by pulsed infrared (IR) laser diode, 830nm, is mainly based on the thermal-induced phase-change (TPC ) processes shown as follows: The overall understanding of the mechanism of TPC OM and rewritable technology has increased steadily over the past few years, but some problems remain. The major unresolved problems are: ( 1 ) Thermal fatigue in recording layer, ( 2 ) Slow response (10~50 ns for recording a bit), and ( 3 ) Imperfection in theory — in which photon-excited processes have not been taken into account.
© 1996 Optical Society of America
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