C₃H₆(OH)₂ (Propylene glycol)

Liquids

1 dataset, together covering 0.434–0.656 µm. Default: Otanicar et al. 2009: n 0.434–0.656 µm, k 0.2–1.5 µm.

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

Datasets

Otanicar et al. 2009: n 0.434–0.656 µm, k 0.2–1.5 µm n,k 0.434–0.656 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# C3H6(OH)2 (Propylene glycol): Otanicar et al. 2009: n 0.434–0.656 µm, k 0.2–1.5 µm
c3h6 = ls.fetch_refractiveindex("organic", "propylene_glycol", "Otanicar", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c3h6.range_nm)  # (434, 656) nm
eps = c3h6.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_a3ed11d2002c/lightsmith"
c3h6 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c3h6.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (propylene-glycol/otanicar-2009).

# ... load c3h6 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c3h6)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=434, stop_nm=656, 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 C3H6(OH)2 (Propylene glycol)

Propylene glycol (C₃H₈O₂) is a synthetic organic compound that is a colorless, nearly odorless, clear, viscous liquid with a faintly sweet taste. Often regarded as a safer alternative to ethylene glycol, it is miscible with a broad range of solvents including water, acetone, and chloroform. In industrial settings, propylene glycol is used as a moisturizer in cosmetics, as a food additive, in the manufacture of hydraulic fluids and as a coolant in liquid cooling systems. Pharmacologically, it's employed to help retain the moisture content in medicines and as a solvent for oral, injectable, and topical drugs. In the realm of optics, its refractive properties can be significant, especially when used as a matching or immersion fluid.

Other names: propylene_glycol, C3H6, OH)2 (Propylene glycol, Propylene glycol, C₃H₈O₂, Propane-1,2-diol, α-Propylene glycol, 1,2-Propanediol, 1,2-Dihydroxypropane, Methyl ethyl glycol, MEG, Methylethylene glycol

API: /v1/materials/mat_35b347c4c7ac · slug propylene-glycol