tidy3d.Sellmeier.from_dn

classmethod Sellmeier.from_dn(wl, n, dn_dwl, name=None)

Create a 1-pole Sellmeier model from dispersion data.

Parameters

• wl (float) – (micron) The center wavelength.

• n (float) – The refractive index at the center wavelength.

• dn_dwl (float) – (1/micron) Refractive index dispersion; derivative of refractive index with respect to wavelength.