Estimation of thermal coefficients of magneto-optical media

Xiaodong Xun, Chubing Peng, Masud Mansuripur

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Previously we described a method for estimating the thermal conductivity of magneto-optic recording media. The method relies on identifying the laser power that brings the maximum temperature of the TbFeCo layer to as high as the Curie temperature. We extensively use a similar method to estimate the heat capacity of a dielectric layer, a TbFeCo layer, and an aluminum alloy layer of magneto-optic recording media. Measurements are conducted on static disks with a beam of light focused on a TbFeCo layer. The method has the advantage of thermal diffusion depending on a multilayer structure and irradiation time.

Original languageEnglish (US)
Pages (from-to)4596-4602
Number of pages7
JournalApplied optics
Volume41
Issue number22
DOIs
StatePublished - Aug 1 2002

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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