Surlyn A-1601

Polymers and photoresists

1 dataset, together covering 28.57–200 µm. Default: Smith and Loewenstein 1975: n,k 28.6–200 µm.

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Datasets

Smith and Loewenstein 1975: n,k 28.6–200 µm n,k 28.57–200 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Surlyn A-1601: Smith and Loewenstein 1975: n,k 28.6–200 µm
surlyna1601 = ls.fetch_refractiveindex("other", "SurlynA1601", "Smith", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(surlyna1601.range_nm)  # (28571.4, 200000) nm
eps = surlyna1601.eps([75600])  # 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_fbef17a1a866/lightsmith"
surlyna1601 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(surlyna1601.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (surlyna1601/smith-loewenstein-1975).

# ... load surlyna1601 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=surlyna1601)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=28570, stop_nm=200000, 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 Surlyn A-1601

Surlyn is the brand name of an ionomer resin created by DuPont, a copolymer of ethylene and methacrylic acid used as a coating and packaging material.

Other names: Surlyn

API: /v1/materials/mat_37099128b5ea · slug surlyna1601