Refractive index of HfO₂-Y₂O₃ (Hafnium dioxide - Yttrium oxide)

import lightsmith as ls

# HfO2-Y2O3 (Hafnium dioxide - Yttrium oxide): Wood et al. 1990: n 0.36–5.0 µm
hfo2_y2o3 = ls.fetch_refractiveindex("other", "HfO2-Y2O3", "Wood", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(hfo2_y2o3.range_nm)  # (365, 5000) nm
eps = hfo2_y2o3.eps([633])  # complex permittivity

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_4ba72f89eebf/lightsmith"
hfo2_y2o3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(hfo2_y2o3.source)  # citation and provenance travel with the data

# ... load hfo2_y2o3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=hfo2_y2o3)],
    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

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_4ba72f89eebf/lightsmith?model=drude_lorentz"
hfo2_y2o3_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))