Refractive index of Bombyx mori (silkworm) silk

import lightsmith as ls

# Bombyx mori (silkworm) silk: Bucciarelli et al. 2018: Pure fibroin film, formed using water; n 0.4–1.5 µm
bombyx_mori = ls.fetch_refractiveindex("other", "Bombyx_mori", "Bucciarelli-rSF_H2O", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(bombyx_mori.range_nm)  # (400, 1500) nm
eps = bombyx_mori.eps([633])  # complex permittivity

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_01e2d0f6ee27/lightsmith"
bombyx_mori = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(bombyx_mori.source)  # citation and provenance travel with the data

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