Title :
Thermal limitations in optical recording
Author :
Nelson, Douglas J. ; Vick, Brian
Author_Institution :
Dept. of Mech. Eng., Virginia Tech., Blacksburg, VA, USA
Abstract :
The fundamental thermal process used to write information to optical media is investigated using a simplified thermal model. The thermal model is solved using a Green´s function method which requires only numerical quadrature to evaluate an analytical solution. The results show the effects of the duration and period of the heat source, and the rotational speed of the media on the spot size and transient thermal response produced on the surface of the media in terms of nondimensional parameters. To resolve very small time and length scales, a microscale model for conduction and radiation heat transfer in a multilayer structure is proposed
Keywords :
Green´s function methods; heat transfer; integration; optical storage; Green function; conduction; microscale model; multilayer structure; nondimensional parameters; numerical quadrature; optical recording; radiation heat transfer; rotational speed; spot size; thermal model; transient thermal response; Green´s function methods; Laser modes; Magnetic materials; Optical distortion; Optical materials; Optical recording; Power lasers; Temperature; Thermal conductivity; Thermal engineering;
Conference_Titel :
Thermal Phenomena in Electronic Systems, 1994. I-THERM IV. Concurrent Engineering and Thermal Phenomena., InterSociety Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1372-0
DOI :
10.1109/ITHERM.1994.342891
