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Correct for numerical dispersion at 3d solve_waveguide_mode level

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Jan Petykiewicz 2019-08-26 00:26:54 -07:00
commit c306bb1f46
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meanas/fdfd/waveguide_mode.py
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@ -111,6 +111,9 @@ def solve_waveguide_mode(mode_number: int,
'''
Apply corrections and expand to 3D
'''
# Correct wavenumber to account for numerical dispersion.
fields_2d['wavenumber'] = 2/dx_prop * numpy.arcsin(fields_2d['wavenumber'] * dx_prop/2)
# Adjust for propagation direction
fields_2d['E'][2] *= polarity
fields_2d['H'][2] *= polarity