TlBr (Thallium bromide)

2 datasets, together covering 0.54–39.4 µm. Default: Palik 1985: n 0.57–39.4 µm.

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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

# TlBr (Thallium bromide): Palik 1985: n 0.57–39.4 µm
tlbr = ls.fetch_refractiveindex("main", "TlBr", "Palik", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(tlbr.range_nm)  # (570, 39400) nm
eps = tlbr.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_f2ac20c493bd/lightsmith"
tlbr = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(tlbr.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (tlbr/palik-1985).

# ... load tlbr as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=tlbr)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=570, 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_f2ac20c493bd/lightsmith?model=drude_lorentz"
tlbr_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 TlBr (Thallium bromide)

Thallium bromide (TlBr) is a crystalline compound with interesting properties that make it suitable for radiation detection applications. It possesses a wide bandgap and high atomic numbers for both thallium and bromine, characteristics that enhance its performance as a gamma-ray detector. Additionally, TlBr detectors exhibit high energy resolution and are suitable for high-temperature operations. Due to its potential in radiation detection, TlBr has attracted attention in the field of nuclear medicine and security. However, the material's long-term stability and potential toxicity from thallium content require careful consideration during usage and handling.

Other names: Thallium bromide, Thallium(I) bromide

Thallium(I) bromide - Wikipedia

API: /v1/materials/mat_1aa7c6aab121 · slug tlbr