TeO₂ (Tellurium dioxide)

Glasses, oxides and dielectrics anisotropic

2 datasets, together covering 0.4–1 µm. Default: Uchida 1971: α-TeO2; n(o) 0.4–1.0 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

# TeO2 (Tellurium dioxide): Uchida 1971: α-TeO2; n(o) 0.4–1.0 µm
teo2 = ls.fetch_refractiveindex("main", "TeO2", "Uchida-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(teo2.range_nm)  # (400, 1000) nm
eps = teo2.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_18026e9f4a76/lightsmith"
teo2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(teo2.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (teo2/uchida-1971-o).

# ... load teo2 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=teo2)],
    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"]).

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_18026e9f4a76/lightsmith?model=drude_lorentz"
teo2_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

A dispersive Drude–Lorentz model for time-domain solvers.

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 TeO2 (Tellurium dioxide)

Tellurium dioxide (TeO₂) is a solid, white crystalline compound and is the most commonly encountered oxide of tellurium. It is an amphoteric oxide, meaning it can act both as an acid or a base depending on the reaction. Its unique properties make it useful for a range of applications. One of the most prominent applications of TeO₂ is in the production of glass. Due to its high refractive index and unique dispersive properties, it's used to make acousto-optic devices, which can be used to diffract and modulate light using sound waves. TeO₂ is also a significant precursor in the synthesis of other tellurium compounds. In the field of nonlinear optics, tellurium dioxide crystals have been employed for frequency doubling and other wavelength conversion processes. Its transparent nature in the visible and near-infrared region makes it a favorable material for these optical applications. Polymorphs:

α-TeO₂ (paratellurite): tetragonal
β-TeO₂: orthorhombic

Other names: Tellurium dioxide, Tellurium(IV) oxide, Tellurium oxide

API: /v1/materials/mat_4d4567b24c43 · slug teo2