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Proceedings Paper

Thermal modeling of a phase-change optical recording disk
Author(s): L. P. Shi; Tow Chong Chong; Jia Jun Ho; Z. J. Liu; Bao Xi Xu; Xiangshui Miao; Y. M. Huang; P. K. Tan; K. G. Lim
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Paper Abstract

A new thermal model to study the laser induced temperature profile of a multilayered phase change optical recording disk is proposed. The new model considers the thermal effect generated by both the transmission and reflection light. The calculation formulae are listed. The model is used to simulate the Ge2Sb2Te5 phase change optical disks with five layers structure. In order to study the differences between the new and existing models, simulations are carried out using both models and the differences are compared. The differences get larger as the phase change layer becomes thinner. It is also revealed that the differences get larger as the wavelength becomes shorter. The idea proposed in this paper is also suitable for the analysis of magneto-optical disks as well as for improved accuracy in the measurement of thermal parameters.

Paper Details

Date Published: 23 October 1998
PDF: 8 pages
Proc. SPIE 3401, Optical Data Storage '98, (23 October 1998); doi: 10.1117/12.327919
Show Author Affiliations
L. P. Shi, National Univ. of Singapore (Singapore)
Tow Chong Chong, National Univ. of Singapore (Singapore)
Jia Jun Ho, National Univ. of Singapore (Singapore)
Z. J. Liu, National Univ. of Singapore (Singapore)
Bao Xi Xu, National Univ. of Singapore (Singapore)
Xiangshui Miao, National Univ. of Singapore (Singapore)
Y. M. Huang, National Univ. of Singapore (Singapore)
P. K. Tan, National Univ. of Singapore (Singapore)
K. G. Lim, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 3401:
Optical Data Storage '98
Shigeo R. Kubota; Tomas D. Milster; Paul J. Wehrenberg, Editor(s)

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