CO₂ (Carbon dioxide)

2 datasets, together covering 0.1807–1.817 µm. Default: Bideau-Mehu et al. 1973: n 0.181–1.69 µm.

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

Datasets

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# CO2 (Carbon dioxide): Bideau-Mehu et al. 1973: n 0.181–1.69 µm
co2 = ls.fetch_refractiveindex("main", "CO2", "Bideau-Mehu", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(co2.range_nm)  # (180.7, 1694.5) nm
eps = co2.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_c931f6bb8440/lightsmith"
co2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(co2.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (co2/bideau-mehu-1973).

# ... load co2 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=co2)],
    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"]).

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 CO2 (Carbon dioxide)

Carbon dioxide (CO₂) is a colorless, odorless gas that plays a critical role in various industrial, environmental, and biological systems. Composed of two oxygen atoms covalently bonded to a central carbon atom, CO₂ is a linear molecule with diverse applications. One notable use is in CO₂ lasers, which produce a high-power infrared beam and are employed in applications ranging from cutting and welding to surgical procedures. Aside from its technological uses, CO₂ is perhaps most recognized for its role as a greenhouse gas. It has a significant long-term warming effect on Earth's climate, contributing to global warming and subsequent climate change. This has led to intensive research into CO₂ capture and sequestration technologies, as well as international policies aimed at emission reduction. Other industrial uses include its role as a refrigerant, a fire suppressant, and as a solvent in supercritical fluid applications. Given its wide range of applications and environmental implications, CO₂ remains a molecule of great scientific, industrial, and global significance.

Other names: Carbon dioxide, Carbon oxide, Carbon(IV) oxide

API: /v1/materials/mat_f7f07707c706 · slug co2