Ca (Calcium)

2 datasets, together covering 0.001234–1.653 µm. Default: Mathewson and Myers 1971: n,k 0.340–1.65 µm.

Compare datasets

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

Datasets

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Ca (Calcium): Mathewson and Myers 1971: n,k 0.340–1.65 µm
ca = ls.fetch_refractiveindex("main", "Ca", "Mathewson", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(ca.range_nm)  # (339.68, 1653.12) nm
eps = ca.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_2c5ab149d4b8/lightsmith"
ca = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(ca.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (ca/mathewson-myers-1971).

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

Calcium (Ca) is an alkaline earth metal that is essential in various biological processes but also has various industrial applications. In its pure elemental form, it is a soft, silvery metal that reacts vigorously with water and oxidizes rapidly in air. While elemental calcium is not commonly used in optical applications, its compounds like calcium fluoride (CaF₂) and calcium oxide (CaO) are of great interest in optics and photonics. Calcium fluoride is notable for its low refractive index variation with wavelength, making it a choice material for the production of optical components like lenses and windows, especially in the ultraviolet region. Calcium oxide, also known as lime, is used in the production of other materials like various types of glass and ceramics. The ability to dope calcium-containing materials with rare-earth or transition-metal ions makes them useful in laser applications as well. Overall, calcium and its compounds offer a range of desirable properties for optical, structural, and biological applications.

Other names: Calcium

API: /v1/materials/mat_39c9c2843f61 · slug ca