Easy Python interface to RefractiveIndex database

The original database
https://github.com/polyanskiy/refractiveindex.info-database

Database files parsing was made with a modified version of refractiveIndex.py from PyTMM project by Pavel Dmitriev.

Installation

pip install refractiveindex

Usage

from refractiveindex import RefractiveIndexMaterial

SiO = RefractiveIndexMaterial(shelf='main', book='SiO', page='Hass')

wavelength_nm = 600  # [nm]

SiO.get_epsilon(wavelength_nm)
# (3.8633404437869827+0.003931076923076923j)

SiO.get_refractive_index(wavelength_nm)
# (1.96553846)

SiO.get_extinction_coefficient(wavelength_nm)
# (0.001)

Notes:

here the time dependence is assumed to be $\mathrm{e}^{-\mathrm{i} \omega t}$, so $\mathrm{Im}(\varepsilon) > 0$ is responsible for the losses.
if there is a space in the name, one should write underscore instead of it, i.e. not page='Rodriguez-de Marcos' but page='Rodriguez-de_Marcos'.