Beam propagation method using a [(p- 1)/ p] Padé approximant of the propagator.
نویسندگان
چکیده
A new beam propagation method (BPM) is developed based on a direct approximation to the propagator by its [(p-1)/p] Padé approximant. The approximant is simple to construct and has the desired damping effect for the evanescent modes. The method is applied to a tapered waveguide for TM-polarized waves, based on the energy-conserving improvement of the one-way Helmholtz equation. Numerical results are compared with those obtained with other variants of the BPM.
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ورودعنوان ژورنال:
- Optics letters
دوره 27 9 شماره
صفحات -
تاریخ انتشار 2002