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Clarify beta=wavenumber

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Jan Petykiewicz 2019-07-09 20:08:44 -07:00
commit c3f248a73c
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fdfd_tools/waveguide_mode.py
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@ -55,7 +55,7 @@ def solve_waveguide_mode_2d(mode_number: int,
See Numerical Dispersion in Taflove's FDTD book. See Numerical Dispersion in Taflove's FDTD book.
This correction term reduces the error in emitted power, but additional This correction term reduces the error in emitted power, but additional
error is introduced into the E_err and H_err terms. This effect becomes error is introduced into the E_err and H_err terms. This effect becomes
more pronounced as beta increases. more pronounced as the wavenumber increases.
''' '''
if wavenumber_correction: if wavenumber_correction:
wavenumber -= 2 * numpy.sin(numpy.real(wavenumber / 2)) - numpy.real(wavenumber) wavenumber -= 2 * numpy.sin(numpy.real(wavenumber / 2)) - numpy.real(wavenumber)