Ta (Tantalum)

Metals and conductors

4 datasets, together covering 0.00236–125 µm. Default: Werner et al. 2009: n,k 0.0176–2.48 µm.

Compare datasets

Tick datasets in the list to add them to the plot (up to 12).

Datasets

Experimental data

Models and simulations

Werner et al. 2009: DFT calculations; n,k 0.0176–2.48 µm n,k 0.01759–2.48 µm

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Ta (Tantalum): Werner et al. 2009: n,k 0.0176–2.48 µm
ta = ls.fetch_refractiveindex("main", "Ta", "Werner", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ta.range_nm)  # (17.586, 2479.68) nm
eps = ta.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_7bb934362a97/lightsmith"
ta = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(ta.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (ta/werner-2009).

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

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 Ta (Tantalum)

Tantalum (Ta) is a dense, hard, grayish-blue metal that is highly corrosion-resistant. It is part of the refractory metals group, which are characterized by their high melting points and resistance to wear, corrosion, and deformation. Due to its inertness, tantalum is often used in the manufacture of medical implants and surgical instruments, ensuring they don't react with bodily fluids. In the electronics industry, tantalum is used to make capacitors, which are key components in many electronic devices, especially mobile phones and computers. Its ability to form a stable oxide layer on its surface, known as tantalum pentoxide, is crucial for this application. Additionally, the metal is used in the production of superalloys for jet engine components, nuclear reactors, and missile parts due to its high-temperature strength and melting point.

Other names: Tantalum

API: /v1/materials/mat_65a2d86da22d · slug ta