Simulations of heat generation and conduction on a land/groove disc

Author

Nishi, Y. ; Shimano, T. ; Kando, H.

Author_Institution

Central Res. Lab., Hitachi Ltd., Kokubunji, Japan

fYear

2000

fDate

14-17 May 2000

Firstpage

141

Lastpage

143

Abstract

We applied the finite-difference time-domain (FDTD) method to an optical disc to estimate the energy absorption inside a multi-layered disc with land-and-groove structure. The FDTD method was developed to measure the electromagnetic fields generated by diffraction in a near-field. Afterwards we analyzed the heat conduction. We found that temperature transition depended not only on conductivity but on the initial distribution of the heat and on disc geometry.

Keywords

crystallisation; finite difference time-domain analysis; heat conduction; optical disc storage; temperature distribution; crystallization; electromagnetic field; energy absorption; finite difference time domain method; heat conduction; heat generation; land-and-groove structure; multi-layered optical disc; near-field diffraction; numerical simulation; temperature distribution; Electromagnetic diffraction; Electromagnetic fields; Electromagnetic measurements; Electromagnetic wave absorption; Finite difference methods; Optical diffraction; Structural discs; Temperature dependence; Temperature distribution; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Data Storage, 2000. Conference Digest

Conference_Location

Whisler, BC, Canada

Print_ISBN

0-7803-5950-X

Type

conf

DOI

10.1109/ODS.2000.848007

Filename

848007