MgAl2O4 (Magnesium aluminate, spinel)
Glasses, oxides and dielectrics
2 datasets, together covering 0.1409–5.5 µm. Default: Tropf and Thomas 1991: n 0.35–5.5 µm.
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Datasets
Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# MgAl2O4 (Magnesium aluminate, spinel): Tropf and Thomas 1991: n 0.35–5.5 µm
mgal2o4 = ls.fetch_refractiveindex("main", "MgAl2O4", "Tropf", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(mgal2o4.range_nm) # (350, 5500) nm
eps = mgal2o4.eps([633]) # complex permittivityDownloads 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_8b18cffcf24f/lightsmith"
mgal2o4 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(mgal2o4.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (mgal2o4/tropf-thomas-1991).
# ... load mgal2o4 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=mgal2o4)],
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 wavelengthSame spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).
import json, urllib.request
import lightsmith as ls
url = "https://materials.lightsmith.dev/v1/datasets/ds_8b18cffcf24f/lightsmith?model=drude_lorentz"
mgal2o4_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))A dispersive Drude–Lorentz model for time-domain solvers.
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 MgAl2O4 (Magnesium aluminate, spinel)
Magnesium aluminium oxide, commonly known as spinel (MgAl2O4), is a transparent ceramic material with a cubic crystal structure. Spinel possesses excellent optical transparency from the ultraviolet to the mid-infrared range, making it valuable for various optical applications. This material is notably durable, resistant to attack from harsh environments, and can withstand high temperatures. These characteristics make it ideal for protective windows in specific high-stress applications. Moreover, due to its favorable mechanical properties and refractive index, spinel is being considered for anti-reflective coatings and other advanced optical devices. Additionally, its non-birefringent nature is a plus in certain optical scenarios. Mineral: Spinel
Other names: Magnesium aluminate, spinel, Magnesium aluminium oxide, Magnesium aluminum oxide, Spinel
API: /v1/materials/mat_1073a460ea37 · slug mgal2o4