Title :
Estimation of thermal conductivity of magneto-optical media
Author :
Xiaodong Xun ; Chubing Peng ; Mansuripur, Masud
Author_Institution :
Opt. Sci. Center, Arizona Univ., Tucson, AZ, USA
Abstract :
We describe a simple method to estimate the thermal conductivity of magneto optical (MO) media consisting of a glass substrate, the TbFeCo magneto-optical layer, and a Si/sub 3/N/sub 4/ dielectric layer. The method is based on determining the laser power needed to reach the Curie temperature at the center of a focused spot.
Keywords :
Curie temperature; cobalt alloys; iron alloys; laser beams; magneto-optical recording; optical films; optical focusing; terbium alloys; thermal conductivity; thermal conductivity measurement; Curie temperature; MO media; Si/sub 3/N/sub 4/; Si/sub 3/N/sub 4/ dielectric layer; TbFeCo; TbFeCo magneto-optical layer; focused spot; glass substrate; laser power; magneto-optical media; thermal conductivity; Apertures; Curve fitting; Glass; Lenses; Temperature distribution; Thermal conductivity;
Conference_Titel :
Optical Data Storage, 2000. Conference Digest
Conference_Location :
Whisler, BC, Canada
Print_ISBN :
0-7803-5950-X
DOI :
10.1109/ODS.2000.847980
