LiNbO3 (Lithium niobate)
Semiconductors and photonic platforms integrated-photonicsanisotropic
2 datasets, together covering 0.4–5 µm. Default: Zelmon et al. 1997: n(o) 0.4–5.0 µm.
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Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# LiNbO3 (Lithium niobate): Zelmon et al. 1997: n(o) 0.4–5.0 µm
linbo3 = ls.fetch_refractiveindex("main", "LiNbO3", "Zelmon-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(linbo3.range_nm) # (400, 5000) nm
eps = linbo3.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_1f73298dcadb/lightsmith"
linbo3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(linbo3.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (linbo3/zelmon-1997-o).
# ... load linbo3 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=linbo3)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=400, 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"]).
import json, urllib.request
import lightsmith as ls
url = "https://materials.lightsmith.dev/v1/datasets/ds_1f73298dcadb/lightsmith?model=drude_lorentz"
linbo3_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))A dispersive Drude–Lorentz model for time-domain solvers.
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 LiNbO3 (Lithium niobate)
Lithium niobate (LiNbO3) is a ferroelectric material with excellent electro-optic, piezoelectric, and nonlinear optical properties. It is widely used in integrated optics, optoelectronic devices, and telecommunication applications. LiNbO3 crystals are often employed in modulators, switches, waveguide devices, and frequency doublers. Due to its strong Pockels effect, it is a popular choice for Q-switching in solid-state lasers and is a key material in the fabrication of surface acoustic wave (SAW) devices. The material is generally transparent in the wide wavelength range from the near-infrared to the ultraviolet, making it versatile for various optical applications.
Other names: Lithium niobate, LN, TFLN, thin-film lithium niobate, lithium niobate
API: /v1/materials/mat_33b249983f56 · slug linbo3