Microchem 8.5 mEL copolymer resist

Polymers and photoresists photoresist

1 dataset, together covering 0.2–1.1 µm. Default: Spec sheet: n 0.2–1.1 µm.

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

Datasets

Spec sheet: n 0.2–1.1 µm n 0.2–1.1 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Microchem 8.5 mEL copolymer resist: Spec sheet: n 0.2–1.1 µm
microchem85mel = ls.fetch_refractiveindex("other", "Microchem85mEL", "specs", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(microchem85mel.range_nm)  # (200, 1100) nm
eps = microchem85mel.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_ef0ebe6302cd/lightsmith"
microchem85mel = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(microchem85mel.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (microchem85mel/specs).

# ... load microchem85mel as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=microchem85mel)],
    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.

API: /v1/materials/mat_a1ddbee9fea0 · slug microchem85mel