Refractive index of C₂H₅OH (Ethanol)

import lightsmith as ls

# C2H5OH (Ethanol): Sani and Dell'Oro 2016: n,k 0.185–61 µm
c2h5oh = ls.fetch_refractiveindex("organic", "ethanol", "Sani", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c2h5oh.range_nm)  # (185.185, 60935.9) nm
eps = c2h5oh.eps([633])  # complex permittivity

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_b2dd6274c8a5/lightsmith"
c2h5oh = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c2h5oh.source)  # citation and provenance travel with the data

# ... load c2h5oh as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c2h5oh)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=1000, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength