Al2O3 (Aluminium sesquioxide, Sapphire, Alumina)
Glasses, oxides and dielectrics integrated-photonicsanisotropic
12 datasets, together covering 3.102e-06–993.3 µm. Default: Malitson and Dodge 1972: α-Al2O3 (Sapphire); n(o) 0.20–5.0 µm.
Compare datasets
Tick datasets in the list to add them to the plot (up to 12).
Datasets
Crystal
Thin film
- Hagemann et al. 1974: n,k 0.000775–0.207 µm
- Rodríguez de Marcos et al. 2025: n,k 3.1e-6–993 µm
- Boidin et al. 2016: n 0.3–18 µm
- Franta et al. 2015: n,k 0.114–125 µm
- Zhukovsky et al. 2015: n 0.211–1.69 µm
- Kischkat et al. 2012: n,k 1.54–14.3 µm
- Querry 1985: Thin film (oxidized Al mirror); n,k 0.21–12.5 µm
Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# Al2O3 (Aluminium sesquioxide, Sapphire, Alumina): Malitson and Dodge 1972: α-Al2O3 (Sapphire); n(o) 0.20–5.0 µm
al2o3 = ls.fetch_refractiveindex("main", "Al2O3", "Malitson-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(al2o3.range_nm) # (200, 5000) nm
eps = al2o3.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_de7f983cd237/lightsmith"
al2o3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(al2o3.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (al2o3/malitson-dodge-1972-o).
# ... load al2o3 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=al2o3)],
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_de7f983cd237/lightsmith?model=drude_lorentz"
al2o3_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 Al2O3 (Aluminium sesquioxide, Sapphire, Alumina)
Al2O3, commonly known as alumina or aluminum oxide, is a ceramic material that has a wide range of applications due to its excellent mechanical and optical properties. This compound crystallizes in various phases, the most stable and common of which is the corundum structure. Alumina is transparent in the ultraviolet to the infrared range, making it a versatile material for a variety of optical applications such as protective windows and lenses. It has a high refractive index and is also known for its strong dielectric properties. One of the key attributes of Al2O3 is its remarkable thermal stability and resistance to chemical attack, which makes it suitable for harsh environment applications. Furthermore, the material has been investigated for its nonlinear optical characteristics, although it is generally less efficient in this regard compared to other nonlinear optical materials. Alumina can also serve as a substrate material for thin-film optical coatings. In summary, Al2O3 is a robust and multifunctional material that is extensively studied for its enduring relevance in both traditional and advanced optical systems. Mineral: Corundum Gemstones: Sapphire, Ruby
Other names: Aluminium sesquioxide, Sapphire, Alumina, Aluminium sesquioxide, Alumina, Aluminium oxide, Aloxite, Aluminium oxide (α), Aluminium(III) oxide, Dialuminium trioxide, Corundum, Sapphire, Ruby, alumina, sapphire
Also listed in
API: /v1/materials/mat_a93b9b312fde · slug al2o3