VO2 (Vanadium dioxide)
Phase-change materials integrated-photonicsphase-change
10 datasets, together covering 0.21–25 µm. Default: Beaini et al. 2020: n,k 0.5–25 µm; 25 °C.
Compare datasets
Tick datasets in the list to add them to the plot (up to 12).
Datasets
- Beaini et al. 2020: n,k 0.5–25 µm; 25 °C
- Beaini et al. 2020: n,k 0.5–25 µm; 100 °C
- Oguntoye et al. 2023: n,k 0.21–2.5 µm; 20 °C
- Oguntoye et al. 2023: n,k 0.21–2.5 µm; 30 °C
- Oguntoye et al. 2023: n,k 0.21–2.5 µm; 40 °C
- Oguntoye et al. 2023: n,k 0.21–2.5 µm; 50 °C
- Oguntoye et al. 2023: n,k 0.21–2.5 µm; 55 °C
- Oguntoye et al. 2023: n,k 0.21–2.5 µm; 60 °C
- Oguntoye et al. 2023: n,k 0.21–2.5 µm; 70 °C
- Oguntoye et al. 2023: n,k 0.21–2.5 µm; 80 °C
Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# VO2 (Vanadium dioxide): Beaini et al. 2020: n,k 0.5–25 µm; 25 °C
vo2 = ls.fetch_refractiveindex("main", "VO2", "Beaini-25C", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(vo2.range_nm) # (500, 25000) nm
eps = vo2.eps([633]) # complex permittivityDownloads 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_df6bd702f865/lightsmith"
vo2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(vo2.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (vo2/beaini-2020-25c).
# ... load vo2 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=vo2)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=500, stop_nm=1000, num=81),
)
res = ls.solve(sim) # exact Mie for a sphere
print(res.q_ext) # extinction efficiency at each wavelengthSame spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).
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 VO2 (Vanadium dioxide)
Vanadium dioxide (VO2) is a unique compound with a characteristic metal-insulator transition. At temperatures below 67°C, VO2 acts as an insulator but rapidly becomes a conductor when heated above this threshold. This swift phase transition is accompanied by a structural change from a monoclinic to a tetragonal lattice. Because of this distinctive property, VO2 has garnered significant attention for potential applications in electronics, particularly as a switch or in thermochromic devices. For example, its use in smart windows allows for the regulation of infrared radiation, enabling energy savings by blocking heat during summer or retaining it during winter. Furthermore, researchers have been exploring its potential in high-frequency electronics and optoelectronic devices.
Other names: Vanadium dioxide, Divanadium tetroxide, Vanadium(IV) oxide
API: /v1/materials/mat_24e8b8e07e95 · slug vo2