Optical constants
Refractive index of CuO (Copper monoxide)
Brimhall et al. 2009: n,k 0.0101–0.0348 µm
- Data
- tabulated nk
- Range
- 0.0101–0.0348 µm
- Points
- 29
- Licence
- CC0-1.0
Plot
Click the plot to set the calculator wavelength.
At one wavelength
- Refractive index n
- 0.914667
- Extinction coefficient k
- 0.0974444
- Permittivity ε1
- 0.82712
- Permittivity ε2
- 0.178258
- Absorption coefficient α
- 654825 cm⁻¹
- Penetration depth δ = λ/(2πk)
- 30.5425 nm
- Abbe number Vd
- —
- Chromatic dispersion dn/dλ
- -3.33333 µm⁻¹
- Group index ng
- 0.977
- Group velocity dispersion
- — fs²/mm
- Dispersion parameter D
- — ps/(nm·km)
- Photon energy
- 66.3017 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
# CuO (Copper monoxide): Brimhall et al. 2009: n,k 0.0101–0.0348 µm
cuo = ls.fetch_refractiveindex("main", "CuO", "Brimhall", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cuo.range_nm) # (10.1, 34.8) nm
eps = cuo.eps([18.7]) # 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_c79231d64b2c/lightsmith"
cuo = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(cuo.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (cuo/brimhall-2009).
# ... load cuo as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=cuo)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=11, stop_nm=34, 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.
Comments and conditions
References
- doi:10.1364/oe.17.023873 Measured optical constants of copper from 10 nm to 35 nm, Optics Express (2009)
Cite
Nicole Brimhall et al.. Measured optical constants of copper from 10 nm to 35 nm. Optics Express, 17, 23873 (2009), doi:10.1364/oe.17.023873; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)
Data
32 rows as published| λ (µm) | n | k |
|---|---|---|
| 0.0101 | 0.978 | 0.045 |
| 0.0104 | 0.978 | 0.05 |
| 0.0107 | 0.974 | 0.055 |
| 0.011 | 0.974 | 0.06 |
| 0.0113 | 0.974 | 0.057 |
| 0.0116 | 0.972 | 0.064 |
| 0.0119 | 0.976 | 0.054 |
| 0.0123 | 0.971 | 0.061 |
| 0.0127 | 0.96 | 0.07 |
| 0.0131 | 0.957 | 0.073 |
| 0.0136 | 0.948 | 0.072 |
| 0.0136 | 0.953 | 0.077 |
| 0.014 | 0.939 | 0.082 |
| 0.014 | 0.942 | 0.079 |
| 0.0145 | 0.934 | 0.086 |
| 0.0145 | 0.941 | 0.081 |
| 0.0151 | 0.938 | 0.084 |
| 0.0157 | 0.934 | 0.088 |
| 0.0163 | 0.93 | 0.085 |
| 0.017 | 0.928 | 0.091 |
| 0.0178 | 0.916 | 0.091 |
| 0.0186 | 0.915 | 0.097 |
| 0.0195 | 0.912 | 0.101 |
| 0.0205 | 0.908 | 0.104 |
| 0.0216 | 0.908 | 0.105 |
| 0.0229 | 0.907 | 0.112 |
| 0.0242 | 0.906 | 0.119 |
| 0.0258 | 0.903 | 0.128 |
| 0.0276 | 0.907 | 0.142 |
| 0.0296 | 0.888 | 0.153 |
| 0.032 | 0.877 | 0.169 |
| 0.0348 | 0.864 | 0.204 |
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
- —
CuO film formed on the surface of Cu exposed to air.