FDTD analysis of recording light distribution in a near-field MAMMOS recording system

Author

Manfredonia, Matthew M. ; Nutter, Paul W. ; Wright, C.David

Author_Institution

Dept. of Comput. Sci., Manchester Univ., UK

Volume

41

Issue

10

fYear

2005

Firstpage

2866

Lastpage

2868

Abstract

Using a combination of diffraction analysis and the three-dimensional finite-difference time-domain technique, we investigate the behavior of the recording light distribution in a magnetically amplified magnetooptical storage recording system with the presence of the optical disk and both with and without the inclusion of a solid immersion lens. The relationship of the distribution with the incident polarization, the air gap depth, and the disk structure is analyzed in detail. The results indicate that the distribution is strongly dependent upon each of these variables.

Keywords

finite difference time-domain analysis; light diffraction; magneto-optical recording; optical disc storage; FDTD analysis; air gap depth; diffraction analysis; disk structure; finite-difference time-domain technique; incident polarization; light distribution recording; magnetically amplified magnetooptical storage recording system; near-field MAMMOS; optical disk; solid immersion lens; Disk recording; Finite difference methods; Lenses; Magnetic analysis; Magnetooptic recording; Optical diffraction; Optical recording; Solids; Stimulated emission; Time domain analysis; Finite-difference time-domain (FDTD) methods; finite methods; magnetooptic films; magnetooptic recording;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.854677

Filename

1519144