Fe (Iron)

Metals and conductors

5 datasets, together covering 0.01759–286 µm. Default: Johnson and Christy 1974: n,k 0.188–1.94 µm.

Compare datasets

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

Datasets

Experimental data

Models and simulations

Werner et al. 2009: DFT calculations; n,k 0.0176–2.48 µm n,k 0.01759–2.48 µm

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Fe (Iron): Johnson and Christy 1974: n,k 0.188–1.94 µm
fe = ls.fetch_refractiveindex("main", "Fe", "Johnson", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(fe.range_nm)  # (188, 1937) nm
eps = fe.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_506a773bec73/lightsmith"
fe = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(fe.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (fe/johnson-christy-1974).

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

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 Fe (Iron)

Iron (Fe) is a common element with widespread industrial applications, including construction, transportation, and manufacturing. In the context of optical systems, iron is not typically used in its elemental form due to its propensity for oxidation and poor transparency to light. However, iron-doped materials, such as iron-doped silica, are used for specialized applications such as in optical fibers for telecommunications and sensors. Iron is also used in the form of thin films in some optical components where its magnetic properties are advantageous. Additionally, mirrors for high-power laser applications can be made from polished iron or iron alloys, though this is less common than materials like copper. Overall, while elemental iron is not a primary material in optical applications, its properties are leveraged in various forms and composites for specialized uses.

Other names: Iron

Also listed in

Selected materials for 3D artists › METALS

API: /v1/materials/mat_8cf1daf9cc9f · slug fe