Modification of the finite difference scheme for efficient analysis of thin lossy metallayers in optical devices |
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| Authors: | Conradi O Helfert S Pregla R |
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| Institution: | (1) Department of Electrical and Electronic Engineering, University of Bristol, Merchant Venturers Building, Woodland Road, BS8 1UB, UK |
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| Abstract: | A method is proposed for the analysis of optical devices with lossy metal layer by including an analytical formulation into the finite difference expressions. Losses of TM0 mode in an electro-optic switch for wavelength 1523 nm, exhibiting a sharp maximum of 37 dB are computed by this method. The results show very good agreement with the data obtained by the Mode Matching Method and Finite Difference Beam Propagation Method. |
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