Optical constants

Refractive index of ZnSe (Zinc selenide)

Querry 1987: n,k 0.500–21.7 µm

Data: tabulated nk
Range: 0.5–21.74 µm
Points: 278
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 2.57116
Extinction coefficient k: 5.62000e-07

Permittivity ε₁: 6.61086
Permittivity ε₂: 2.88998e-06

Absorption coefficient α: 0.120189 cm⁻¹
Penetration depth δ = λ/(2πk): 1.66405e+08 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.9 µm⁻¹

Group index n_g: 3.1
Group velocity dispersion: — fs²/mm

Dispersion parameter D: — ps/(nm·km)
Photon energy: 2.11001 eV

ε = (n + ik)², α = 4πk/λ, n_g = 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

# ZnSe (Zinc selenide): Querry 1987: n,k 0.500–21.7 µm
znse = ls.fetch_refractiveindex("main", "ZnSe", "Querry", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(znse.range_nm)  # (500, 21739.1) nm
eps = znse.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_1ef04d5ddfad/lightsmith"
znse = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(znse.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (znse/querry-1987).

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

References

M. R. Querry. Optical constants of minerals and other materials from the millimeter to the ultraviolet, Contractor Report CRDEC-CR-88009 (1987)

Cite

M. R. Querry. Optical constants of minerals and other materials from the millimeter to the ultraviolet, Contractor Report CRDEC-CR-88009 (1987); Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

278 rows as published

CSV comma separated TXT tab separated YAML n, k Full database record original YAML All quantities CSV JSON metadata

ZnSe (Zinc selenide), Querry 1987: n,k 0.500–21.7 µm: n and k versus wavelength
λ (µm)	n	k
0.5	2.693	1.21e-05
0.52	2.65	4.3e-06
0.54	2.62	1.5e-06
0.56	2.596	8e-07
0.58	2.578	6e-07
0.6	2.56	5e-07
0.62	2.548	4e-07
0.64	2.537	4e-07
0.66	2.528	4e-07
0.68	2.521	3e-07
0.7	2.516	3e-07
0.72	2.51	3e-07
0.74	2.504	3e-07
0.76	2.497	3e-07
0.78	2.489	3e-07
0.8	2.482	3e-07
0.82	2.476	2e-07
0.84	2.47	2e-07
0.86	2.468	2e-07
0.88	2.466	2e-07
0.9	2.464	2e-07
0.92	2.464	2e-07
0.94	2.464	2e-07
0.96	2.462	2e-07
0.98	2.461	2e-07
1.0	2.46	2e-07
1.02	2.459	1e-07
1.04	2.459	1e-07
1.06	2.458	1e-07
1.08	2.458	1e-07
1.1	2.458	1e-07
1.12	2.457	1e-07
1.14	2.456	1e-07
1.16	2.456	1e-07
1.18	2.454	1e-07
1.2	2.454	1e-07
1.22	2.453	1e-07
1.24	2.452	1e-07
1.26	2.451	1e-07
1.28	2.45	1e-07
1.3	2.449	0.0
1.32	2.449	0.0
1.34	2.448	0.0
1.36	2.448	0.0
1.38	2.447	0.0
1.4	2.447	0.0
1.42	2.446	0.0
1.44	2.445	0.0
1.46	2.445	0.0
1.48	2.444	0.0
1.5	2.444	0.0
1.52	2.444	0.0
1.54	2.443	0.0
1.56	2.441	0.0
1.58	2.441	0.0
1.6	2.44	0.0
1.62	2.439	0.0
1.64	2.439	0.0
1.66	2.438	0.0
1.68	2.438	0.0
1.7	2.437	0.0
1.72	2.437	0.0
1.74	2.436	0.0
1.76	2.436	0.0
1.78	2.435	0.0
1.8	2.435	0.0
1.82	2.434	0.0
1.84	2.433	0.0
1.86	2.432	0.0
1.88	2.432	0.0
1.9	2.432	0.0
1.92	2.432	0.0
1.94	2.431	0.0
1.96	2.431	0.0
1.98	2.431	0.0
2.0	2.431	0.0
2.02	2.43	0.0
2.04	2.429	0.0
2.06	2.428	0.0
2.08	2.428	0.0
2.1	2.428	0.0
2.12	2.427	0.0
2.14	2.427	0.0
2.16	2.426	0.0
2.18	2.426	0.0
2.2	2.425	0.0
2.22	2.426	0.0
2.24	2.425	0.0
2.26	2.425	0.0
2.28	2.424	0.0
2.3	2.424	0.0
2.32	2.424	0.0
2.34	2.424	0.0
2.36	2.423	0.0
2.38	2.423	0.0
2.4	2.423	0.0
2.42	2.422	0.0
2.44	2.422	0.0
2.46	2.422	0.0
2.48	2.422	0.0
2.5	2.421	0.0
2.5126	2.421	0.0
2.5253	2.421	0.0
2.5381	2.421	0.0
2.551	2.421	0.0
2.5641	2.421	0.0
2.5773	2.421	0.0
2.5907	2.421	0.0
2.6042	2.421	0.0
2.6178	2.42	0.0
2.6316	2.42	0.0
2.6455	2.42	0.0
2.6596	2.42	0.0
2.6738	2.42	0.0
2.6882	2.419	0.0
2.7027	2.419	0.0
2.7174	2.419	0.0
2.7322	2.419	0.0
2.7473	2.419	0.0
2.7624	2.419	0.0
2.7778	2.418	0.0
2.7933	2.418	0.0
2.809	2.418	0.0
2.8249	2.418	0.0
2.8409	2.419	0.0
2.8571	2.418	0.0
2.8736	2.418	0.0
2.8902	2.418	0.0
2.907	2.418	0.0
2.924	2.417	0.0
2.9412	2.417	0.0
2.9586	2.417	0.0
2.9762	2.416	0.0
2.994	2.417	0.0
3.012	2.416	0.0
3.0303	2.416	0.0
3.0488	2.416	0.0
3.0675	2.416	0.0
3.0864	2.416	0.0
3.1056	2.416	0.0
3.125	2.416	0.0
3.1447	2.415	0.0
3.1646	2.415	0.0
3.1847	2.415	0.0
3.2051	2.414	0.0
3.2258	2.414	0.0
3.2468	2.414	0.0
3.268	2.413	0.0
3.2895	2.414	0.0
3.3113	2.413	0.0
3.3333	2.413	0.0
3.3557	2.414	0.0
3.3784	2.414	0.0
3.4014	2.416	0.0
3.4247	2.415	0.0
3.4483	2.414	0.0
3.4722	2.414	0.0
3.4965	2.414	0.0
3.5211	2.414	0.0
3.5461	2.413	0.0
3.5714	2.413	0.0
3.5971	2.413	0.0
3.6232	2.413	0.0
3.6496	2.413	0.0
3.6765	2.414	0.0
3.7037	2.414	0.0
3.7313	2.414	0.0
3.7594	2.413	0.0
3.7879	2.413	0.0
3.8168	2.414	0.0
3.8462	2.414	0.0
3.876	2.414	0.0
3.9063	2.414	0.0
3.937	2.414	0.0
3.9683	2.415	0.0
4.0	2.416	0.0
4.0323	2.414	0.0
4.065	2.416	0.0
4.0984	2.417	0.0
4.1322	2.416	0.0
4.1667	2.417	0.0
4.2017	2.417	0.0
4.2373	2.417	1e-07
4.2735	2.417	1e-07
4.3103	2.417	1e-07
4.3478	2.416	1e-07
4.386	2.416	2e-07
4.4248	2.416	2e-07
4.4643	2.416	2e-07
4.5045	2.415	2e-07
4.5455	2.415	2e-07
4.5872	2.415	3e-07
4.6296	2.415	3e-07
4.6729	2.415	3e-07
4.717	2.415	3e-07
4.7619	2.415	3e-07
4.8077	2.415	3e-07
4.8544	2.415	4e-07
4.902	2.415	4e-07
4.9505	2.415	4e-07
5.0	2.415	4e-07
5.0505	2.415	4e-07
5.102	2.415	4e-07
5.1546	2.415	4e-07
5.2083	2.415	4e-07
5.2632	2.415	5e-07
5.3191	2.415	5e-07
5.3763	2.415	5e-07
5.4348	2.415	5e-07
5.4945	2.415	5e-07
5.5556	2.414	5e-07
5.618	2.414	5e-07
5.6818	2.414	6e-07
5.7471	2.414	6e-07
5.814	2.414	6e-07
5.8824	2.413	6e-07
5.9524	2.413	7e-07
6.0241	2.413	9e-07
6.0976	2.413	1.1e-06
6.1728	2.413	1.2e-06
6.25	2.413	1e-06
6.3291	2.413	8e-07
6.4103	2.413	8e-07
6.4935	2.413	8e-07
6.5789	2.412	7e-07
6.6667	2.412	7e-07
6.7568	2.411	7e-07
6.8493	2.411	7e-07
6.9444	2.411	8e-07
7.0423	2.41	7e-07
7.1429	2.41	8e-07
7.2464	2.409	8e-07
7.3529	2.409	8e-07
7.4627	2.409	8e-07
7.5758	2.408	8e-07
7.6923	2.408	8e-07
7.8125	2.407	9e-07
7.9365	2.406	9e-07
8.0645	2.406	8e-07
8.1967	2.406	9e-07
8.3333	2.405	9e-07
8.4746	2.404	9e-07
8.6207	2.404	9e-07
8.7719	2.403	1e-06
8.9286	2.402	1e-06
9.0909	2.401	1.1e-06
9.2593	2.401	1e-06
9.434	2.401	1e-06
9.6154	2.4	1.1e-06
9.8039	2.399	1.1e-06
10.0	2.399	9e-07
10.2041	2.398	9e-07
10.4167	2.397	9e-07
10.6383	2.395	9e-07
10.8696	2.395	8e-07
11.1111	2.393	8e-07
11.3636	2.392	8e-07
11.6279	2.39	8e-07
11.9048	2.388	8e-07
12.1951	2.387	7e-07
12.5	2.384	8e-07
12.8205	2.382	7e-07
13.1579	2.379	7e-07
13.5135	2.376	1.1e-06
13.8889	2.373	1.7e-06
14.2857	2.369	3.4e-06
14.7059	2.366	6.6e-06
15.1515	2.362	1.52e-05
15.625	2.357	3.22e-05
16.129	2.351	5.6e-05
16.6667	2.345	5.55e-05
17.2414	2.337	7.83e-05
17.8571	2.328	8.39e-05
18.5185	2.317	0.0001019
19.2308	2.304	0.0001839
20.0	2.291	0.0004232
20.8333	2.275	0.0007723
21.7391	2.257	0.0013358

Optical transmission calculator

Free-standing sample in vacuum, normal incidence

Transmittance T: —
Reflectance R: —

Fresnel reflection calculator

R_p: —
R_s: —
R = (R_p+R_s)/2: —
Phase φ_p: —
Phase φ_s: —
Brewster angle θ_B: —
Critical angle θ_C: —

ZnSe (Zinc selenide): all datasets

Experimental data

Models and simulations

Adachi and Taguchi 1991: n,k 0.234–0.827 µm n,k 0.2339–0.8266 µm

About ZnSe (Zinc selenide)

Zinc selenide (ZnSe) is a binary compound semiconductor with a cubic zinc blende structure. This material is transparent in the visible and near-infrared regions of the electromagnetic spectrum, with a wide direct bandgap of approximately 2.7 eV. Due to its transparency and high refractive index, ZnSe has become a popular choice for high-power infrared laser systems, especially CO₂ lasers, where ZnSe optics are used as output couplers and beam expanders. ZnSe can also be doped with various elements, most notably with chromium (Cr:ZnSe), to produce mid-infrared solid-state lasers. In addition, ZnSe is utilized in the fabrication of light-emitting diodes, photodetectors, and solar cells.

More about ZnSe (Zinc selenide) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/ZnSe/nk/Querry.yml
ID: ds_1ef04d5ddfad
API: /v1/datasets/ds_1ef04d5ddfad

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