7e407dd1ac
Update examples for sampled-interface tapers, explicit physical CPML spacing, copied SCPML widths, and the consolidated complex mode solver. Document breaking API changes, overlap measures, and PML convergence.
953 B
fdfd
::: meanas.fdfd
Core operator layers
::: meanas.fdfd.functional
::: meanas.fdfd.operators
::: meanas.fdfd.solvers
::: meanas.fdfd.scpml
::: meanas.fdfd.farfield
SCPML conventions
stretch_with_scpml now uses -1 for the low-index face and +1 for the
high-index face, matching CPML and propagation conventions. It returns copied
widths by default; pass copy=False to request mutation explicitly.
Both SCPML builders accept kappa_function(depth) for real stretching and
max_imag_ratio to limit the final dimensionless abs(Im(s))/Re(s). Start a
mode-solver convergence study with max_imag_ratio=1.0: overly strong imaginary
stretching can produce above-light-line PML artifacts. The cap is not a general
spectral guarantee, and weaker absorption can increase boundary reflections.
Check domain size, PML thickness, strength, mode localization, and residuals.
The general scattering profile remains uncapped by default.