Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15100
Title: Thermal deformation analysis of high density phase change optical disks
Authors: YANG HONGXIN
Keywords: phase change optical disk, Blu-ray Disc, AOD, thermal deformation, FEM, disk structure, optical parameters
Issue Date: 16-Jan-2006
Source: YANG HONGXIN (2006-01-16). Thermal deformation analysis of high density phase change optical disks. ScholarBank@NUS Repository.
Abstract: The laser-beam spot size and the track pitches of the high-density phase change optical disks are smaller and smaller. Any slight deformation in the phase change optical disks will affect the data storage efficiency. The thermal deformation becomes an important issue. A thermo-mechanical analysis simulator has been designed for phase change optical disks based on finite element method (FEM). The thermal deformation in Blu-ray Disc and advanced optical disk(AOD) have been investigated using this simulator. The relationships between the thermal deformation and disk structure parameters and optical parameters have been investigated. It was found that the peak temperature and peak deformation lies in different layers. Several methods have been proposed to decrease the deformation. It can be referred to optimize the phase change optical disk structure.
URI: http://scholarbank.nus.edu.sg/handle/10635/15100
Appears in Collections:Master's Theses (Open)

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