GaSe (Gallium selenide)

Semiconductors and photonic platforms anisotropic

6 datasets, together covering 0.8–1620 µm. Default: Chen et al. 2009: n(o) 3–1500 µm.

Compare datasets

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

Datasets

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# GaSe (Gallium selenide): Chen et al. 2009: n(o) 3–1500 µm
gase = ls.fetch_refractiveindex("main", "GaSe", "Chen-n-o", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(gase.range_nm)  # (3000, 1.5e+06) nm
eps = gase.eps([67100])  # 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_27852d1c3810/lightsmith"
gase = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(gase.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (gase/chen-2009-n-o).

# ... load gase as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=gase)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=3000, stop_nm=1.5e+06, 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 GaSe (Gallium selenide)

Gallium selenide (GaSe) is a layered II-VI semiconductor material with a direct band gap that varies between 2.1 to 2.9 eV depending on the layer thickness. This material has gained considerable attention for its nonlinear optical properties, making it suitable for frequency conversion applications, such as second harmonic generation and parametric oscillation. Due to its layered structure, GaSe can be easily exfoliated, facilitating its use in van der Waals heterostructures with other 2D materials. In its monolayer form, GaSe exhibits strong light-matter interactions, making it a candidate for optoelectronic applications like photodetectors and solar cells. Gallium selenide is also studied for its potential in high-speed transistors and photonic devices, particularly in the ultraviolet and visible spectral regions.

Other names: Gallium selenide, Gallium(II) selenide, Gallium monoselenide

API: /v1/materials/mat_4489bad86b8f · slug gase