ZnWO₄ (Zinc tungstate)

Glasses, oxides and dielectrics anisotropic

3 datasets, together covering 0.42–4 µm. Default: Bond et al. 1965: n(α) 0.42–4.0 µm.

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Datasets

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# ZnWO4 (Zinc tungstate): Bond et al. 1965: n(α) 0.42–4.0 µm
znwo4 = ls.fetch_refractiveindex("main", "ZnWO4", "Bond-α", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(znwo4.range_nm)  # (420, 4000) nm
eps = znwo4.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_24b709fb5546/lightsmith"
znwo4 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(znwo4.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (znwo4/bond-1965).

# ... load znwo4 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=znwo4)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=420, 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 ZnWO4 (Zinc tungstate)

Zinc tungstate (ZnWO₄) is a crystalline compound known for its scintillating properties. Due to its ability to emit light when exposed to radiation, ZnWO₄ is primarily used as a scintillator in various radiation detection applications. This material has found particular use in detecting gamma rays and is implemented in some neutrino experiments and dark matter searches. Its high density, along with good light yield and transparency to its own emission, makes it a preferred choice in these areas. Additionally, ZnWO₄ exhibits low afterglow and is resistant to radiation damage, further enhancing its desirability for such applications. As a crystal, its optical characteristics, particularly its refractive index, are of interest in the field of photonics. When working with this material, standard safety measures should be adhered to, ensuring minimal risks during handling and usage.

Other names: Zinc tungstate, Zinc tungsten oxide

API: /v1/materials/mat_25068c97435b · slug znwo4