refind.n_glass

refind.n_glass(wl, type='SiO2')

Refractive index of some common glasses using their respective Sellmeier coefficients.

Changed in version 02-09-2016: Added Gadolinium Gallium Garnet ‘GGG’.

Parameters:

• wl (array) – Wavelength axis in um.
• type (str) – Type of glass (‘SiO2’, ‘F2’, ‘NF2’, ‘SF10’, ‘SF11’, ‘BK7’, ‘Sapphire_E’, ‘Sapphire_O’, ‘CoverGlass’, ‘GGG’). ‘CoverGlass’ refers to silanized microscope cover glasses with parameters fitted to experimental data. ‘GGG’ is Gadolinium Gallium Garnet.

Returns:

Refractive index (same shape as wl).