Tm (Thulium)

Metals and conductors

1 dataset, together covering 0.0007748–0.4803 µm. Default: Vidal-Dasilva et al. 2009: n,k 0.000775–0.480 µm.

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

Datasets

Vidal-Dasilva et al. 2009: n,k 0.000775–0.480 µm n,k 0.0007748–0.4803 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# Tm (Thulium): Vidal-Dasilva et al. 2009: n,k 0.000775–0.480 µm
tm = ls.fetch_refractiveindex("main", "Tm", "Vidal-Dasilva", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(tm.range_nm)  # (0.77478, 480.312) nm
eps = tm.eps([19.3])  # 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_ba4642f9244e/lightsmith"
tm = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(tm.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (tm/vidal-dasilva-2009).

# ... load tm as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=tm)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=480, 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 Tm (Thulium)

Thulium (Tm) is a rare-earth metal, belonging to the lanthanide series of the periodic table. It is silvery-white and soft, displaying properties common to most of the rare-earth elements. Thulium can be isolated from other rare earths through ion-exchange reactions. While thulium is not as abundant or widely used as other rare earths, it has several niche applications. One of its artificially-produced isotopes, Tm-170, is employed as a radiation source in portable X-ray devices. Additionally, thulium lasers, specifically Tm:YAG lasers, have applications in medical procedures, industrial drilling, and research.

Other names: Thulium

API: /v1/materials/mat_6d21ef4fbd0f · slug tm