Thin (5 nm) nanoshell: MNPBEM against three Mie codes

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Reference: thin (5 nm) nanoshell: MNPBEM against three Mie codes
Kind: code: another group's code
Calculated: C_ext, C_sca
Agreement: —

A thin nanoshell (15 nm silica core, 5 nm shell of ε = −10 + i) in vacuum: three Mie codes and MNPBEM Shown, not asserted. The three Mie codes agree to all printed digits; MNPBEM, with elements of 2–4 nm on surfaces 5 nm apart, stays about 12% low and barely moves with the mesh: a resolution limit of the boundary elements at the meshes this machine affords, not a disagreement about the physics.

C_ext, PyStratify C_ext, treams C_ext, scattnlay C_ext, MNPBEM (1016 faces)

Hover to read values.

largest relative difference among the Mie codes: 1.62×10⁻¹²
PyStratify the lines, the reference the circles

Run it yourself: mnpbem_spheres.py · figures.py on GitHub, PyStratify 97e52a9