Eu (Europium)

Metals and conductors

1 dataset, together covering 0.0008827–0.1492 µm. Default: Fernández-Perea et al. 2008: n,k 0.000883–0.149 µm.

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Datasets

Fernández-Perea et al. 2008: n,k 0.000883–0.149 µm n,k 0.0008827–0.1492 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Eu (Europium): Fernández-Perea et al. 2008: n,k 0.000883–0.149 µm
eu = ls.fetch_refractiveindex("main", "Eu", "Fernandez-Perea", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(eu.range_nm)  # (0.882651, 149.2) nm
eps = eu.eps([11.5])  # 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_c74323300cab/lightsmith"
eu = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(eu.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (eu/fernandez-perea-2008).

# ... load eu as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=eu)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=1, stop_nm=149, 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 Eu (Europium)

Europium (Eu) is a rare-earth element that is widely used as a phosphor in flat-panel displays, fluorescent lamps, and in various other optoelectronic applications. Its distinct red and blue luminescence make it valuable for use in red and blue phosphors. The element can be incorporated into glasses and crystals to create materials with enhanced luminescent properties. Europium-doped materials are particularly important in the creation of lasers and optical amplifiers. Additionally, europium compounds are often used in the field of magneto-optics. While europium itself is not typically used in its elemental form in optical systems, its compounds and doped materials play a crucial role in modern optoelectronics.

Other names: Europium

API: /v1/materials/mat_57925616b3a0 · slug eu