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Efficient interface conditions for the finite difference beam propagation method

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3 Author(s)
H. J. W. M. Hoekstra ; Mesa Res. Inst., Twente Univ., Enschede, Netherlands ; G. J. M. Krijnen ; P. V. Lambeck

It is shown that by adapting the refractive indexes in the vicinity of interfaces, the 2-D beam propagation method based on the finite-difference (FDBPM) scheme can be made much more effective. This holds especially for TM modes propagating in structures with high-index contrasts, such as surface polaritons. A short discussion is given on the applicability of the FDBPM

Published in:

Journal of Lightwave Technology  (Volume:10 ,  Issue: 10 )