title: Finite-element model for phase-change recording.
abstract: The finite-element method is applied to model phase-change recording in a grooved recording stack. A rigorous model for the scattering of a three-dimensional focused spot by a one-dimensional periodic grating is used to determine the absorbed light in a three-dimensional region inside the phase-change layer. The optical model is combined with a three-dimensional thermal model to compute the temperature distribution. Land and groove recording and polarization dependence are studied, and the model is applied to the Blu-ray Disc.
authors.affiliation: Department of Applied Mathematical Analysis, Delft University of Technology, 2628 CD Delft, The Netherlands. j.h.brusche@ewi.tudelft.nl
authors.forename: J H
authors.initials: JH
authors.lastname: Brusche
authors.forename: A
authors.initials: A
authors.lastname: Segal
authors.forename: H P
authors.initials: HP
authors.lastname: Urbach