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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 22 — Aug. 1, 2002
  • pp: 4596–4602

Estimation of thermal coefficients of magneto-optical media

Xiaodong Xun, Chubing Peng, and Masud Mansuripur  »View Author Affiliations


Applied Optics, Vol. 41, Issue 22, pp. 4596-4602 (2002)
http://dx.doi.org/10.1364/AO.41.004596


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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.

© 2002 Optical Society of America

OCIS Codes
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(210.3820) Optical data storage : Magneto-optical materials
(210.4810) Optical data storage : Optical storage-recording materials
(310.6870) Thin films : Thin films, other properties

History
Original Manuscript: October 18, 2001
Revised Manuscript: March 4, 2002
Published: August 1, 2002

Citation
Xiaodong Xun, Chubing Peng, and Masud Mansuripur, "Estimation of thermal coefficients of magneto-optical media," Appl. Opt. 41, 4596-4602 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-22-4596

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