Propanee soot

Other

1 dataset, together covering 0.4358–10 µm. Default: Dalzell and Sarofim 1969: n,k 0.4358–10 µm.

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Datasets

Dalzell and Sarofim 1969: n,k 0.4358–10 µm n,k 0.4358–10 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Propanee soot: Dalzell and Sarofim 1969: n,k 0.4358–10 µm
propane_soot = ls.fetch_refractiveindex("other", "propane_soot", "Dlazell", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(propane_soot.range_nm)  # (435.8, 10000) nm
eps = propane_soot.eps([633])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_4b3e78eeb916/lightsmith"
propane_soot = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(propane_soot.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (propane-soot/dalzell-sarofim-1969-dlazell).

# ... load propane_soot as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=propane_soot)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=436, stop_nm=1000, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

Materials guide Open a sphere of it in Studio Quick start Ask the community

Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.

About Propanee soot

Other names: propane_soot

Also listed in

Selected materials for 3D artists › MISCELLANEOUS

API: /v1/materials/mat_db541ab22d67 · slug propane-soot