Share Email Print
cover

Proceedings Paper

Temperature gradient study on the hybrid recording
Author(s): Changsheng Xie; You-xin Xia; Hao Huang
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

The paper suggests a new scheme of hybrid recording by high refractive index optical waveguide; analyzes the waveguide exit optical field and the near field optical spot energy distribute of the hybrid recording medium surface. We succeed to use the Maxwell electromagnetism theory to model and simulate the waveguide exit energy distribute, obtained the near field optical spot of the hybrid recording medium surface. According to energy balance way, a new model has been adopted and the hybrid recording medium temperature gradient has been studied. The Thermal modeling of two-dimensional transient temperature distributed by the finite element method is studied; with this tool, the hybrid recording medium temperature gradient has been obtained. The hybrid recording areal density may be decided by the dual-gradient (the thermal gradient and magnetic field gradient). According to the simulated results, the track density can reach 500KPTI, if the bit density is 1000kbPI, the area density will be 500Gb/in2.

Paper Details

Date Published: 3 January 2005
PDF: 7 pages
Proc. SPIE 5643, Advances in Optical Data Storage Technology, (3 January 2005); doi: 10.1117/12.578277
Show Author Affiliations
Changsheng Xie, Huazhong Univ. of Science and Technology (China)
You-xin Xia, Huazhong Univ. of Science and Technology (China)
Hao Huang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5643:
Advances in Optical Data Storage Technology
Duanyi Xu; Kees A. Schouhamer Immink; Keiji Shono, Editor(s)

© SPIE. Terms of Use
Back to Top