IRG 25 (SCHOTT)

Glasses, oxides and dielectrics supplier-datasheet Supplier: SCHOTT

1 dataset, together covering 0.85–12 µm. Default: IRG 25.

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

Datasets

IRG 25 n,k 0.85–12 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# IRG 25 (SCHOTT): IRG 25
schott_irg25 = ls.fetch_refractiveindex("specs", "SCHOTT-infrared", "IRG25", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(schott_irg25.range_nm)  # (850, 12000) nm
eps = schott_irg25.eps([3190])  # 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_14d70234020b/lightsmith"
schott_irg25 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(schott_irg25.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (schott-irg25/schott).

# ... load schott_irg25 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=schott_irg25)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=850, 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"]).

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_14d70234020b/lightsmith?model=drude_lorentz"
schott_irg25_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

A dispersive Drude–Lorentz model for time-domain solvers.

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 IRG 25 (SCHOTT)

SCHOTT AG is a German multinational company renowned for its expertise in specialty glass and glass-ceramics. Founded in 1884, the company has been a pioneer in the field, with innovations that have significantly impacted a variety of industries, including healthcare, home appliances, electronics, and optics. In the optical domain, SCHOTT offers a comprehensive range of high-quality glass types, including crown and flint glasses, as well as specialty materials like laser glasses and radiation-shielding glasses. These materials are used in a myriad of applications, from consumer electronics and camera lenses to scientific instruments and aerospace technologies. SCHOTT's glass products are highly regarded for their quality, consistency, and durability, meeting rigorous industry standards. With a strong focus on research and development, the company has continued to introduce innovative products that address the evolving needs of the optical industry. SCHOTT's commitment to quality and innovation has established it as a leading provider of specialty glass solutions, making it a go-to choice for designers and manufacturers seeking high-performance materials. SCHOTT also publishes a glass catalog (SCHOTT Optical Glass Datasheets), which is a standard reference for the properties of many optical glasses.

Other names: IRG25, SCHOTT AG

API: /v1/materials/mat_70b67efb3b9c · slug schott-irg25