Si-Ge (Silicon-germanium, SiGe)
Semiconductors and photonic platforms
8 datasets, together covering 0.24–0.84 µm. Default: Jellison et al. 1993: 11% Si, Ge substrate; n,k 0.24–0.84 µm.
Compare datasets
Tick datasets in the list to add them to the plot (up to 12).
Datasets
- Jellison et al. 1993: 11% Si, Ge substrate; n,k 0.24–0.84 µm
- Jellison et al. 1993: 20% Si, Ge substrate; n,k 0.24–0.84 µm
- Jellison et al. 1993: 28% Si, Ge substrate; n,k 0.24–0.84 µm
- Jellison et al. 1993: 48% Si, Ge substrate; n,k 0.24–0.84 µm
- Jellison et al. 1993: 47% Si, Si substrate; n,k 0.24–0.84 µm
- Jellison et al. 1993: 65% Si, Si substrate; n,k 0.24–0.84 µm
- Jellison et al. 1993: 85% Si, Si substrate; n,k 0.24–0.84 µm
- Jellison et al. 1993: 98% Si, Si substrate; n,k 0.24–0.84 µm
Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# Si-Ge (Silicon-germanium, SiGe): Jellison et al. 1993: 11% Si, Ge substrate; n,k 0.24–0.84 µm
si_ge = ls.fetch_refractiveindex("other", "Si-Ge", "Jellison-11", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(si_ge.range_nm) # (240, 840) nm
eps = si_ge.eps([633]) # complex permittivityDownloads 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_50b367bdf6b2/lightsmith"
si_ge = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(si_ge.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (si-ge/jellison-1993-11).
# ... load si_ge as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=si_ge)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=840, num=81),
)
res = ls.solve(sim) # exact Mie for a sphere
print(res.q_ext) # extinction efficiency at each wavelengthSame spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).
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 Si-Ge (Silicon-germanium, SiGe)
Other names: Silicon-germanium, SiGe
API: /v1/materials/mat_14370e1c613c · slug si-ge