RbI (Rubidium iodide)

Glasses, oxides and dielectrics

1 dataset, together covering 0.24–64 µm. Default: Li 1976: n 0.24–64 µm.

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Datasets

Li 1976: n 0.24–64 µm n 0.24–64 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# RbI (Rubidium iodide): Li 1976: n 0.24–64 µm
rbi = ls.fetch_refractiveindex("main", "RbI", "Li", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(rbi.range_nm)  # (240, 64000) nm
eps = rbi.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_383f8629a678/lightsmith"
rbi = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(rbi.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (rbi/li-1976).

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

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_383f8629a678/lightsmith?model=drude_lorentz"
rbi_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

A dispersive Drude–Lorentz model for time-domain solvers.

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 RbI (Rubidium iodide)

Rubidium iodide (RbI) is a chemical compound formed by combining rubidium cations (Rb⁺) with iodide anions (I^-). It appears as white or colorless crystalline solid and is highly soluble in water, similar to other alkali metal iodides. In the laboratory, rubidium iodide is used primarily for research purposes, especially in the preparation of other rubidium-based compounds. Due to its high solubility and reactivity, especially with moisture, it should be handled with care and stored in dry conditions or under an inert atmosphere to prevent decomposition or reactions.

Other names: Rubidium iodide

API: /v1/materials/mat_e8f937a63090 · slug rbi