CHBr₃ (Bromoform)

Liquids

1 dataset, together covering 1–13 µm. Default: Ghosal et al. 1993: n 1–13 µm.

Compare datasets

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

Datasets

Ghosal et al. 1993: n 1–13 µm n 1–13 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# CHBr3 (Bromoform): Ghosal et al. 1993: n 1–13 µm
chbr3 = ls.fetch_refractiveindex("organic", "bromoform", "Ghosal", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(chbr3.range_nm)  # (1000, 13000) nm
eps = chbr3.eps([3610])  # 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_252ce554eba1/lightsmith"
chbr3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(chbr3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (bromoform/ghosal-1993).

# ... load chbr3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=chbr3)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=1000, stop_nm=13000, 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 CHBr3 (Bromoform)

Bromoform (CHBr₃) is a dense, colorless to pale-yellow liquid that has a high refractive index and emits a sweet odor similar to that of chloroform. It is one of the trihalomethanes, with three bromine atoms attached to a central carbon atom. Historically, bromoform was used as a solvent, sedative, and flame retardant, but due to its potential health risks and environmental concerns, its use has been largely restricted in many countries. It can be produced as a byproduct during the chlorination of drinking water that contains bromide ions. Exposure to bromoform can be harmful, and it has been classified as a possible human carcinogen based on animal studies.

Other names: CHBr3, CHBr₃, Tribromomethane, Methenyl tribromide, Methyl tribromide

API: /v1/materials/mat_0915d64af230 · slug bromoform