RbBr (Rubidium bromide)

Glasses, oxides and dielectrics

1 dataset, together covering 0.21–50 µm. Default: Li 1976: n 0.21–50 µm.

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Datasets

Li 1976: n 0.21–50 µm n 0.21–50 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# RbBr (Rubidium bromide): Li 1976: n 0.21–50 µm
rbbr = ls.fetch_refractiveindex("main", "RbBr", "Li", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(rbbr.range_nm)  # (210, 50000) nm
eps = rbbr.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_4e342c43ec61/lightsmith"
rbbr = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(rbbr.source)  # citation and provenance travel with the data

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

# ... load rbbr as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=rbbr)],
    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_4e342c43ec61/lightsmith?model=drude_lorentz"
rbbr_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

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

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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 RbBr (Rubidium bromide)

Rubidium bromide (RbBr) is an ionic compound consisting of rubidium cations (Rb⁺) and bromide anions (Br^-). This white, crystalline solid is highly soluble in water, producing a solution that is neutral in pH. Like other alkali metal bromides, rubidium bromide is typically used in the laboratory setting rather than for commercial applications. Due to its optical properties, it may be of interest in certain optical and laser applications. In general, RbBr shares many of the properties common to other alkali metal bromides, such as high solubility in water, hygroscopic nature, and good conductivity when dissolved or melted. Handling should be done with care as it reacts with moisture and can be corrosive.

Other names: Rubidium bromide

API: /v1/materials/mat_1eab3a4ad56b · slug rbbr