W (Tungsten)

Metals and conductors

7 datasets, together covering 0.00236–200 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

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# W (Tungsten): Werner et al. 2009: n,k 0.0176–2.48 µm
w = ls.fetch_refractiveindex("main", "W", "Werner", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(w.range_nm)  # (17.586, 2479.68) nm
eps = w.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_5ccf1f929ff7/lightsmith"
w = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(w.source)  # citation and provenance travel with the data

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

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

Tungsten, commonly known by its chemical symbol W (derived from its alternative name, wolfram), is a hard, dense metal with a bright silver-gray luster. Known for its high melting point, which is the highest of all the elements at 3,422°C (6,192°F), tungsten is often used in applications that require materials that can withstand extreme temperatures. Historically, it's been a crucial component in the filaments of incandescent light bulbs. Moreover, tungsten and its alloys are utilized in many high-temperature structural materials, particularly in aerospace and electronic industries due to their remarkable strength at elevated temperatures. Tungsten is also used in the production of wear-resistant electrical contacts and as the primary component in certain types of heavy metal alloys. In the realm of optics and photonics, tungsten is often used as a target for X-ray generation.

Other names: Tungsten

API: /v1/materials/mat_0113cb72a106 · slug w