Optical and magneto-optical (MO) response from nanometer-size grating is calculated using improved Fourier modal method. The MO grating is modeled by an anisotropic MO layer of effective medium. The complex refractive indices and MO parameter of the effective layer are compared with simple effective medium approximation. Dependence of the optical and MO parameters on the filling factor of the grating is presented. MO grating with period in the subwavelength scale could be used as an effective medium with desired optical and MO properties. (c) 2004 Elsevier B.V. All rights reserved.
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Univ Buea, Dept Phys, Lab Res Adv Mat & Nonlinear Sci, Fac Sci, Buea, CameroonUniv Buea, Dept Phys, Lab Res Adv Mat & Nonlinear Sci, Fac Sci, Buea, Cameroon
Petmegni, D. S. Mbieda
Dikande, Alain M.
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Univ Buea, Dept Phys, Lab Res Adv Mat & Nonlinear Sci, Fac Sci, Buea, CameroonUniv Buea, Dept Phys, Lab Res Adv Mat & Nonlinear Sci, Fac Sci, Buea, Cameroon