AgBr (Silver bromide)

2 datasets, together covering 0.495–12.7 µm. Default: Schröter 1931: n 0.495–0.67 µm.

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Datasets

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# AgBr (Silver bromide): Schröter 1931: n 0.495–0.67 µm
agbr = ls.fetch_refractiveindex("main", "AgBr", "Schröter", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(agbr.range_nm)  # (495, 670) nm
eps = agbr.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_bfbd20f69cd6/lightsmith"
agbr = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(agbr.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (agbr/schroter-1931).

# ... load agbr as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=agbr)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=495, stop_nm=670, 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 AgBr (Silver bromide)

AgBr, or silver bromide, is an inorganic compound that has been extensively studied for its photo-sensitive properties. This ionic material forms a face-centered cubic crystal structure and exhibits a direct bandgap, making it an effective absorber of photons. Historically, AgBr has been a key material in traditional photographic films, where exposure to light leads to the reduction of the material and the formation of elemental silver, thereby creating a visible image. In the realm of modern technology, AgBr is being explored for its utility in optoelectronic devices, such as photodetectors and solar cells. Its wide bandgap and high refractive index make it suitable for applications requiring spectral selectivity and efficient light-matter interactions. However, it is sensitive to environmental factors like humidity and needs to be carefully encapsulated or treated to maintain its optical characteristics. In addition to its bulk form, AgBr nanostructures have also been studied for their unique optical and catalytic properties. Overall, AgBr continues to be a material of significant interest in both historical and emerging technologies, thanks to its unique photo-responsive behavior and optoelectronic properties.

Other names: Silver bromide

API: /v1/materials/mat_c52a1975fc66 · slug agbr