C₂Cl₄ (Tetrachloroethylene, PCE, PERC)

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

# C2Cl4 (Tetrachloroethylene, PCE, PERC): Chang et al. 2024: n 0.4–2.0 µm
c2cl4 = ls.fetch_refractiveindex("organic", "tetrachloroethylene", "Chang", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c2cl4.range_nm)  # (400, 2000) nm
eps = c2cl4.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_61795e2161ed/lightsmith"
c2cl4 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c2cl4.source)  # citation and provenance travel with the data

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

# ... load c2cl4 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c2cl4)],
    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_61795e2161ed/lightsmith?model=drude_lorentz"
c2cl4_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 C2Cl4 (Tetrachloroethylene, PCE, PERC)

Tetrachloroethylene (C₂Cl₄), also known as perchloroethylene, is a halogenated alkene widely used as a dry cleaning solvent and metal degreasing agent. It is a dense, non-flammable liquid with a sweet, ether-like odor. Due to its ability to dissolve a wide range of organic materials, it is highly valued in the textile and chemical industries. Although not prominently used for its optical properties, tetrachloroethylene's high refractive index can be utilized in specialized optical applications such as non-aqueous refractometry and other scientific measurements where its solvent properties are advantageous.

Other names: C2Cl4, Tetrachloroethylene, PCE, PERC, C₂Cl₄, Perchloroethylene, Perc, Tetrachlorethene, Perclene, Carbon dichloride, Perchlor, Perchloroethene

API: /v1/materials/mat_ec31d3f619b1 · slug tetrachloroethylene