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摘要
A new approach for solving the optical waveguide discontinuity problems is proposed, where the field-based operator techniques are employed. Instead of using Pade approximation, the square roots of the characteristic matrices are approximated by the Denman-Beavers iterative scheme with a branch-cut rotation in the complex plane. Numerical results show that the present scheme is more accurate and stable than the widely used Pade approximation.
- 出版日期2014-11-20
- 单位东南大学
