BaGa4Se7 (Barium gallium selenide, BGSe)
Semiconductors and photonic platforms anisotropic
6 datasets, together covering 0.48–10.59 µm. Default: Badikov et al 2010: n(α) 0.480–10.4 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
# BaGa4Se7 (Barium gallium selenide, BGSe): Badikov et al 2010: n(α) 0.480–10.4 µm
baga4se7 = ls.fetch_refractiveindex("main", "BaGa4Se7", "Badikov-α", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(baga4se7.range_nm) # (480, 10400) nm
eps = baga4se7.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_079d95f9bc79/lightsmith"
baga4se7 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(baga4se7.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (baga4se7/badikov-2010).
# ... load baga4se7 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=baga4se7)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=480, stop_nm=1000, 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 BaGa4Se7 (Barium gallium selenide, BGSe)
BaGa4Se7, commonly abbreviated as BGSe, is a chalcogenide-based nonlinear optical crystal known for its phase-matching capabilities and broad transparency window. This material is particularly suited for frequency conversion applications in the mid-infrared region, including second-harmonic generation (SHG), sum-frequency generation (SFG), and optical parametric oscillation (OPO). BGSe exhibits high nonlinear optical coefficients, as well as a high laser damage threshold, making it well-suited for high-power applications. The crystal is generally grown using techniques like the Bridgman-Stockbarger method, and can be cut and polished into high-quality facets for optimal performance. One important consideration for this material is its sensitivity to moisture and other environmental factors; thus, careful handling and storage are required to maintain its optical properties. Overall, BGSe offers a compelling combination of properties that make it a valuable material for nonlinear optics, especially for applications requiring high efficiency and broad tunability in the mid-infrared range.
Other names: Barium gallium selenide, BGSe, BGSe
API: /v1/materials/mat_e737f965867f · slug baga4se7