Refractive index of Pd-H (Palladium-hydrogen alloy, Palladium hydride)

import lightsmith as ls

# Pd-H (Palladium-hydrogen alloy, Palladium hydride): Palm et al. 2018: n,k 0.250–1.68 µm
pd_h = ls.fetch_refractiveindex("other", "Pd-H", "Palm", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(pd_h.range_nm)  # (250.02, 1684.53) nm
eps = pd_h.eps([633])  # complex permittivity

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_e4e58662cf9c/lightsmith"
pd_h = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(pd_h.source)  # citation and provenance travel with the data

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