TaS₂ (Tantalum disulfide)

2D materials anisotropic

2 datasets, together covering 0.3–1.69 µm. Default: Munkhbat et al. 2022: multilayer flakes; n,k(o) 0.30–1.69 µm.

Compare datasets

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

Datasets

Multilayer flakes

Munkhbat et al. 2022: multilayer flakes; n,k(o) 0.30–1.69 µm n,k 0.3–1.69 µm default
Munkhbat et al. 2022: multilayer flakes; n,k(e) 0.30–1.69 µm n,k 0.3–1.69 µm

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# TaS2 (Tantalum disulfide): Munkhbat et al. 2022: multilayer flakes; n,k(o) 0.30–1.69 µm
tas2 = ls.fetch_refractiveindex("main", "TaS2", "Munkhbat-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(tas2.range_nm)  # (300, 1690) nm
eps = tas2.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_b558a475ff55/lightsmith"
tas2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(tas2.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (tas2/munkhbat-2022-o).

# ... load tas2 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=tas2)],
    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 TaS2 (Tantalum disulfide)

Tantalum disulfide (TaS₂) is a layered transition metal dichalcogenide with intriguing electrical and optical properties. It's known for its charge density wave (CDW) transitions, which can lead to various electronic states, such as metallic, insulating, and superconducting phases. This material is also of considerable interest in the research community for its potential in miniaturized electronic devices and as a platform for studying correlated electron systems. The thin layers of TaS₂ can be exfoliated, making it a candidate for use in nanoscale electronic and optoelectronic applications. The compound's unique electronic properties also make it a subject of interest in the exploration of novel quantum phenomena.

Other names: Tantalum disulfide, Tantalum(IV) sulfide

Tantalum(IV) sulfide - Wikipedia

API: /v1/materials/mat_0eac86952d71 · slug tas2