Ta2O5 (Tantalum pentoxide)
Glasses, oxides and dielectrics integrated-photonics
18 datasets, together covering 0.02949–1000 µm. Default: Bright et al. 2013: n,k 0.5–1000 µm.
Compare datasets
Tick datasets in the list to add them to the plot (up to 12).
Datasets
Amorphous thin film
- Bright et al. 2013: n,k 0.5–1000 µm
- Cheikh et al. 2025: Power 3.28, O2 4, As deposited; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 3.28, O2 8, As deposited; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 3.28, O2 12, As deposited; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 3.28, O2 16, As deposited; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 4.38, O2 12, As deposited; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 5.48, O2 12, As deposited; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 6.75, O2 12, As deposited; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 3.28, O2 8, Anneal. 450; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 3.28, O2 8, Anneal. 550; n,k 0.207–1.24 µm
- Rodríguez-de Marcos et al. 2016: n,k 0.03–1.5 µm
- Franta et al. 2015: n,k 0.142–125 µm
- Gao et al. 2012: n,k 0.35–1.8 µm
Crystalline thin film
- Bright et al. 2013: Nanocrystalline film; n,k 0.5–1000 µm
- Franta et al. 2025: Polycrystalline; n,k 0.116–400 µm
- Cheikh et al. 2025: Power 3.28, O2 8, Anneal. 650; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 3.28, O2 8, Anneal. 750; n,k 0.207–1.24 µm
- Cheikh et al. 2025: Power 3.28, O2 8, Anneal. 850; n,k 0.207–1.24 µm
Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# Ta2O5 (Tantalum pentoxide): Bright et al. 2013: n,k 0.5–1000 µm
ta2o5 = ls.fetch_refractiveindex("main", "Ta2O5", "Bright-amorphous", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ta2o5.range_nm) # (500, 1e+06) nm
eps = ta2o5.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_f35dd8f487a7/lightsmith"
ta2o5 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(ta2o5.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (ta2o5/bright-2013-amorphous).
# ... load ta2o5 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=ta2o5)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=500, 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"]).
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 Ta2O5 (Tantalum pentoxide)
Tantalum pentoxide (Ta2O5) is a high-refractive-index, white solid material that is insoluble in water. It is known for its high dielectric constant and is widely used in the electronics industry to produce capacitors, particularly in mobile phones, DVD players, video game systems, and computers. The high dielectric constant allows for a large amount of charge to be stored, thus enabling the production of small-sized capacitors with a significant amount of capacitance. Moreover, Ta2O5 has excellent optical properties and is used as a coating material for lenses and other optical components due to its ability to increase the refractive index and provide anti-reflective coatings. It also finds applications in the development of thin films in various optical and electronic devices.
Other names: Tantalum pentoxide, Tantalum oxide, Tantalum pentaoxide, Ditantalum pentoxide, Ditantalum pentaoxide
API: /v1/materials/mat_52e7fc9cc354 · slug ta2o5