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Optimized factor of merit of the magneto-optical Kerr effect of ferromagnetic thin films |
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| Authors: | N Richard A Dereux JP Goudonnet F Scheurer E Beaurepaire P Beauvillain |
| Institution: | (1) Laboratoire de Physique, Optique Submicronique, Université de Bourgogne, BP 47870, 21078 Dijon Cedex, France, FR;(2) Institut de Physique et Chimie des Matériaux de Strasbourg (UMR 7504), BP 20 CR, 67037 Strasbourg Cedex, France, FR;(3) Institut d'électronique Fondamentale (UMR 8622), Université Paris-Sud, 91405 Orsay Cedex, France, FR |
| Abstract: | This paper deals with the optimization of the factor of merit of the magneto-optical Kerr effect of a resonant multilayer cavity including a ferromagnetic film. This optimization is of interest in the context of optical storage technology. Using numerical simulations based on the Green's dyadic technique, we discuss a route to obtain magneto-optical multilayers with a vanishing ellipticity and factors of merit (with respect to the bulk magnetic material) larger than 3 on a broad range of wavelengths, significantly higher than the actual state of the art. Received 21 May 1999 |
| Keywords: | PACS 78 20 Ls Magnetooptical effects - 85 70 Sq Magnetooptical devices - 75 50 Ss Magnetic recording materials |
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