Refractive index of SiC (Silicon carbide)

import lightsmith as ls

# SiC (Silicon carbide): Fischer et al. 2017: 4H-SiC; n(o) 17–150 µm
sic = ls.fetch_refractiveindex("main", "SiC", "Fischer-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(sic.range_nm)  # (17000, 150000) nm
eps = sic.eps([50500])  # complex permittivity

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_c72193fa2edf/lightsmith"
sic = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(sic.source)  # citation and provenance travel with the data

# ... load sic as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=sic)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=17000, stop_nm=150000, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_c72193fa2edf/lightsmith?model=drude_lorentz"
sic_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))