C₈H₁₇OH (Octanol)

Liquids

1 dataset, together covering 0.4–2 µm. Default: Chang et al. 2024: n 0.4–2.0 µm.

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Datasets

Chang et al. 2024: n 0.4–2.0 µm n 0.4–2 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# C8H17OH (Octanol): Chang et al. 2024: n 0.4–2.0 µm
c8h17oh = ls.fetch_refractiveindex("organic", "octanol", "Chang", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c8h17oh.range_nm)  # (400, 2000) nm
eps = c8h17oh.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_78e81abe5ee8/lightsmith"
c8h17oh = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c8h17oh.source)  # citation and provenance travel with the data

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

# ... load c8h17oh as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c8h17oh)],
    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"]).

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_78e81abe5ee8/lightsmith?model=drude_lorentz"
c8h17oh_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 C8H17OH (Octanol)

Octanol (C₈H₁₈O) is an organic compound that consists of an eight-carbon chain terminating in a hydroxyl group (-OH). It typically presents as a colorless, oily liquid with a faintly floral or citrus-like odor. Octanol is principally used as a solvent and in the manufacture of esters used in perfumes and flavorings. It also plays a role in the production of plasticizers and surfactants. In optical applications, the specific refractive index properties of octanol may prove advantageous for certain specialized uses. While octanol is less toxic compared to many organic solvents, it can still pose risks to health if improperly handled, necessitating measures for safe usage and storage.

Other names: C8H17OH, C₈H₁₈O

API: /v1/materials/mat_ef127c0d8dfa · slug octanol