Title :
Figures of merit for recordable optical media
Author_Institution :
Adv. Technol. Center, Imation Corp., St. Paul, MN, USA
Abstract :
A variety of figures of merit (FOM) have been proposed for magneto-optic media design. The Lissberger limit is particularly useful for making comparisons between different magnetooptic materials. It can predict, for instance, the maximum signal for an optically optimized film stack. The derivation of this FOM also determines the film stack design which optimizes the MO signal. In this paper we develop the corresponding FOM for phase change media. We also present a comparison of the FOM calculation with film stacks optimized by computer modeling for GeTeSb.
Keywords :
germanium alloys; magneto-optical recording; optical design techniques; optical films; optimisation; solid-state phase transformations; terbium alloys; tin alloys; FOM calculation; GeTeSb; Lissberger limit; MO signal optimisation; computer modeling; figures of merit; film stack design; film stacks; magneto-optic media design; magnetooptic materials; maximum signal; optically optimized film stack; phase change media; recordable optical media; Crystallization; Dielectric thin films; Magneto electrical resistivity imaging technique; Optical films; Optical recording; Optical refraction; Optical variables control; Phase change materials; Polarization; Reflectivity;
Conference_Titel :
Optical Data Storage Topical Meeting, 1997. ODS. Conference Digest
Conference_Location :
Tucson, AZ, USA
Print_ISBN :
0-7803-3885-5
DOI :
10.1109/ODS.1997.606146
