Metamaterials

Other

1 dataset, together covering 1.2–1.775 µm. Default: Valentine et al. 2008: Metamaterial; n 1.200–1.775 µm.

Compare datasets

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

Datasets

Valentine et al. 2008: Metamaterial; n 1.200–1.775 µm n 1.2–1.775 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Metamaterials: Valentine et al. 2008: Metamaterial; n 1.200–1.775 µm
metamaterials = ls.fetch_refractiveindex("other", "metamaterials", "Valentine", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(metamaterials.range_nm)  # (1200, 1775) nm
eps = metamaterials.eps([1460])  # 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_24315ee35c57/lightsmith"
metamaterials = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(metamaterials.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (metamaterials/valentine-2008).

# ... load metamaterials as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=metamaterials)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=1200, stop_nm=1775, 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 Metamaterials

Metamaterials are artificial materials engineered to have properties that may not be found in nature. The greatest potential of metamaterials is the possibility to create a structure with a negative refractive index, since this property is not found in any non-synthetic material.

API: /v1/materials/mat_52b6ff08b40d · slug metamaterials