refind.n_sellmeier

refind.n_sellmeier(wl, *p)

General Sellmeier-type of refractive index.

Parameters:

• wl (array) – Wavelength axis in um.
• p (mixed) – Sellmeier coefficients. For each term provide two parameters Bi and Ci in the form p = B0, B1, B2, .. Bx, C0, C1, C2, .. Cx.

Returns:

Refractive index n^2 - 1 = sum(Bi * wl^2 / (wl^2 - Ci)) with same shape as wl.