CaWO4 (Calcium tungstate)
Glasses, oxides and dielectrics anisotropic
2 datasets, together covering 0.45–4 µm. Default: Bond 1965: n(o) 0.45–4.0 µm.
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Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# CaWO4 (Calcium tungstate): Bond 1965: n(o) 0.45–4.0 µm
cawo4 = ls.fetch_refractiveindex("main", "CaWO4", "Bond-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cawo4.range_nm) # (450, 4000) nm
eps = cawo4.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_2eb1d678e3a7/lightsmith"
cawo4 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(cawo4.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (cawo4/bond-1965-o).
# ... load cawo4 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=cawo4)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=450, 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"]).
import json, urllib.request
import lightsmith as ls
url = "https://materials.lightsmith.dev/v1/datasets/ds_2eb1d678e3a7/lightsmith?model=drude_lorentz"
cawo4_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))A dispersive Drude–Lorentz model for time-domain solvers.
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 CaWO4 (Calcium tungstate)
Calcium tungstate (CaWO4) is an inorganic compound that crystallizes in a tetragonal or scheelite structure. It is highly regarded for its luminescent and scintillating properties, making it a popular choice for applications in radiation detection and medical imaging. When exposed to ionizing radiation, CaWO4 exhibits strong scintillation, converting the incident radiation into visible or ultraviolet photons. This compound possesses excellent thermal stability, a high melting point, and a high density, which make it well-suited for extreme conditions. Additionally, its good transparency over a wide range of wavelengths has opened doors for its use as a host material in solid-state lasers and other photonic devices. The compound can be synthesized using various methods, including solid-state reactions and hydrothermal processes. Its versatility, stability, and unique optical properties make CaWO4 a material of keen interest for researchers and engineers in the fields of radiation detection, medical imaging, and optoelectronics. Mineral: Scheelite
Other names: Calcium tungstate, Scheelite
API: /v1/materials/mat_59d803ad9ba0 · slug cawo4