Ir (Iridium)

6 datasets, together covering 0.00236–20 µm. Default: Windt et al. 1988: n,k 0.0024–0.122 µm.

Compare datasets

Tick datasets in the list to add them to the plot (up to 12).

Datasets

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Ir (Iridium): Windt et al. 1988: n,k 0.0024–0.122 µm
ir = ls.fetch_refractiveindex("main", "Ir", "Windt", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ir.range_nm)  # (2.36, 121.57) nm
eps = ir.eps([16.9])  # 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_12878d0bd06c/lightsmith"
ir = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(ir.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (ir/windt-1988).

# ... load ir as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=ir)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=3, stop_nm=121, 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 Ir (Iridium)

Iridium (Ir) is a dense, lustrous, and corrosion-resistant transition metal. It is one of the rarest elements in the Earth's crust and has a high melting point, making it ideal for high-temperature applications. Although not transparent, its optical properties are relevant in thin film coatings. Thin layers of iridium can be used as a coating material for mirrors in certain specialized optical systems, including X-ray telescopes. Moreover, the metal is often used in combination with other materials to form highly stable, temperature-resistant, and chemically inert optical surfaces. Its high cost often restricts its usage to specialized applications where other materials would fail. Given its excellent resistance to chemical corrosion, iridium is also used in electrodes for the chlor-alkali process and in certain types of spark plugs.

Other names: Iridium

API: /v1/materials/mat_b7ccc89eb3fc · slug ir