Pb₅Ge₃O₁₁ (Lead germanate, PGO)

Glasses, oxides and dielectrics anisotropic

2 datasets, together covering 0.45–0.7 µm. Default: Simon et al. 1997: n(o) 0.45–0.70 µm.

Compare datasets

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

# Pb5Ge3O11 (Lead germanate, PGO): Simon et al. 1997: n(o) 0.45–0.70 µm
pb5ge3o11 = ls.fetch_refractiveindex("main", "Pb5Ge3O11", "Simon-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(pb5ge3o11.range_nm)  # (450, 700) nm
eps = pb5ge3o11.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_c9a22e76d377/lightsmith"
pb5ge3o11 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(pb5ge3o11.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (pb5ge3o11/simon-1997-o).

# ... load pb5ge3o11 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=pb5ge3o11)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=450, stop_nm=700, 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 Pb5Ge3O11 (Lead germanate, PGO)

Lead germanate (Pb₅Ge₃O₁₁), often referred to as PGO, is a crystalline compound with unique optical properties. Its high density and high atomic number make it particularly suitable as a scintillation material for radiation detection, especially gamma rays. PGO scintillators are characterized by their fast response times and relatively high light yield. Moreover, in the realm of nonlinear optics, PGO has been studied for frequency conversion processes. Due to its specific material properties, lead germanate has been considered for various photonics and optoelectronics applications. However, handling and usage of PGO, like other lead compounds, require precautions due to the toxic nature of lead.

Other names: Lead germanate, PGO, Lead germanate, PGO, Lead germanium oxide

API: /v1/materials/mat_fc71141aebf3 · slug pb5ge3o11