Nb₂O₅ (Niobium pentoxide)

Glasses, oxides and dielectrics

4 datasets, together covering 0.1201–399.4 µm. Default: Franta et al. 2024: n,k 0.120–399 µm.

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Tick datasets in the list to add them to the plot (up to 12).

Datasets

Thin film

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Nb2O5 (Niobium pentoxide): Franta et al. 2024: n,k 0.120–399 µm
nb2o5 = ls.fetch_refractiveindex("main", "Nb2O5", "Franta", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(nb2o5.range_nm)  # (120.051, 399362) nm
eps = nb2o5.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_4b2c6a153eaf/lightsmith"
nb2o5 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(nb2o5.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (nb2o5/franta-2024).

# ... load nb2o5 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=nb2o5)],
    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 wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

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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 Nb2O5 (Niobium pentoxide)

Niobium pentoxide (Nb₂O₅) is a pale yellow compound that is commonly used in the manufacture of certain optical glasses, where it imparts a high refractive index. In addition to its use in specialty glasses, Nb₂O₅ has garnered attention in the photonics industry due to its nonlinear optical properties, making it suitable for devices like waveguides and modulators. The material also finds application in the field of electronics as a dielectric layer in capacitors and has potential in the development of electrochromic devices. Its high dielectric constant further positions it as a candidate for thin film capacitors and transistors.

Other names: Niobium pentoxide, Niobium(V) oxide, Niobium pentaoxide, Dininiobium pentoxide, Diniobium pentaoxide

API: /v1/materials/mat_50f24a780de1 · slug nb2o5