Optical constants
Refractive index of Zr (Zirconium)
Windt et al. 1988: n,k 0.0024–0.122 µm
- Data
- tabulated nk
- Range
- 0.00236–0.1216 µm
- Points
- 36
- Licence
- CC0-1.0
Plot
Click the plot to set the calculator wavelength.
At one wavelength
- Refractive index n
- 0.92122
- Extinction coefficient k
- 0.021405
- Permittivity ε1
- 0.848188
- Permittivity ε2
- 0.0394375
- Absorption coefficient α
- 159162 cm⁻¹
- Penetration depth δ = λ/(2πk)
- 125.658 nm
- Abbe number Vd
- —
- Chromatic dispersion dn/dλ
- -10.0836 µm⁻¹
- Group index ng
- 1.09163
- Group velocity dispersion
- — fs²/mm
- Dispersion parameter D
- — ps/(nm·km)
- Photon energy
- 73.3634 eV
ε = (n + ik)², α = 4πk/λ, ng = n − λ dn/dλ, GVD = λ³/(2πc²) d²n/dλ², D = −(λ/c) d²n/dλ². Group-velocity dispersion is given for formula data only.
Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# Zr (Zirconium): Windt et al. 1988: n,k 0.0024–0.122 µm
zr = ls.fetch_refractiveindex("main", "Zr", "Windt", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(zr.range_nm) # (2.36, 121.57) nm
eps = zr.eps([16.9]) # 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_03702e98c34c/lightsmith"
zr = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(zr.source) # citation and provenance travel with the data
Any dataset here, as the library's Tabulated material (zr/windt-1988).
# ... load zr as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=zr)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=3, stop_nm=121, 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"]).
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.
References
- doi:10.1364/ao.27.000246 Optical constants for thin films of Ti, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Hf, Ta, W, Re, Ir, Os, Pt, and Au from 24 Å to 1216 Å, Applied Optics (1988)
Cite
David L. Windt et al.. Optical constants for thin films of Ti, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Hf, Ta, W, Re, Ir, Os, Pt, and Au from 24 Å to 1216 Å. Applied Optics, 27, 246 (1988), doi:10.1364/ao.27.000246; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)
Data
36 rows as published| λ (µm) | n | k |
|---|---|---|
| 0.00236 | 0.99783 | 0.00117 |
| 0.00316 | 0.99781 | 0.00135 |
| 0.00447 | 0.99536 | 0.00498 |
| 0.00676 | 0.9922 | 0.00269 |
| 0.0114 | 0.9694 | 0.00625 |
| 0.01355 | 0.955 | 0.0131 |
| 0.01714 | 0.9188 | 0.022 |
| 0.0243 | 0.808 | 0.0987 |
| 0.02563 | 0.79 | 0.119 |
| 0.03038 | 0.757 | 0.324 |
| 0.0327 | 0.868 | 0.32 |
| 0.03568 | 0.949 | 0.373 |
| 0.03793 | 0.963 | 0.318 |
| 0.04059 | 0.9 | 0.232 |
| 0.04478 | 0.866 | 0.314 |
| 0.04607 | 0.829 | 0.321 |
| 0.04895 | 0.844 | 0.347 |
| 0.05391 | 0.825 | 0.337 |
| 0.05843 | 0.838 | 0.362 |
| 0.06163 | 0.826 | 0.33 |
| 0.06714 | 0.768 | 0.332 |
| 0.07185 | 0.807 | 0.44 |
| 0.07359 | 0.789 | 0.492 |
| 0.07437 | 0.817 | 0.533 |
| 0.08345 | 0.817 | 0.673 |
| 0.0878 | 0.828 | 0.759 |
| 0.09198 | 0.81 | 0.858 |
| 0.09321 | 0.804 | 0.848 |
| 0.09888 | 0.814 | 0.905 |
| 0.10258 | 0.895 | 0.99 |
| 0.10482 | 0.952 | 1.1 |
| 0.10667 | 0.85 | 1.08 |
| 0.10857 | 0.907 | 1.11 |
| 0.1135 | 1.15 | 1.27 |
| 0.12007 | 1.14 | 1.24 |
| 0.12157 | 1.28 | 1.31 |
Optical transmission calculator
Free-standing sample in vacuum, normal incidence- Transmittance T
- —
- Reflectance R
- —
Fresnel reflection calculator
- Rp
- —
- Rs
- —
- R = (Rp+Rs)/2
- —
- Phase φp
- —
- Phase φs
- —
- Brewster angle θB
- —
- Critical angle θC
- —