Optical constants

Refractive index of ZnS (Zinc sulfide)

Querry 1987: n,k 0.220–167 µm

Data: tabulated nk
Range: 0.22–166.7 µm
Points: 312
State: crystalline
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 2.35996
Extinction coefficient k: 0.00138

Permittivity ε₁: 5.56941
Permittivity ε₂: 0.00651349

Absorption coefficient α: 295.126 cm⁻¹
Penetration depth δ = λ/(2πk): 67767.7 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.4 µm⁻¹

Group index n_g: 2.595
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

# ZnS (Zinc sulfide): Querry 1987: n,k 0.220–167 µm
zns = ls.fetch_refractiveindex("main", "ZnS", "Querry", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(zns.range_nm)  # (220, 166667) nm
eps = zns.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_e44ab5947679/lightsmith"
zns = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(zns.source)  # citation and provenance travel with the data

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

# ... load zns as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=zns)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, 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

312 rows as published

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

ZnS (Zinc sulfide), Querry 1987: n,k 0.220–167 µm: n and k versus wavelength
λ (µm)	n	k
0.22	3.017	1.318
0.24	3.044	0.74
0.26	2.905	0.523
0.28	2.816	0.417
0.3	2.774	0.357
0.32	2.784	0.299
0.34	2.79	0.19
0.36	2.71	0.054
0.38	2.615	0.015
0.4	2.55	0.008
0.42	2.508	0.004
0.44	2.475	0.003
0.46	2.451	0.003
0.48	2.429	0.001
0.5	2.416	0.003
0.52	2.397	0.0
0.54	2.384	0.0
0.56	2.373	0.001
0.58	2.363	0.001
0.6	2.355	0.002
0.62	2.348	0.002
0.64	2.341	0.002
0.66	2.335	0.005
0.68	2.331	0.005
0.7	2.327	0.006
0.72	2.322	0.006
0.74	2.319	0.007
0.76	2.316	0.007
0.78	2.313	0.008
0.8	2.31	0.009
0.82	2.308	0.009
0.84	2.306	0.01
0.86	2.304	0.011
0.88	2.303	0.011
0.9	2.301	0.012
0.92	2.3	0.012
0.94	2.299	0.013
0.96	2.298	0.014
0.98	2.298	0.015
1.0	2.298	0.016
1.02	2.298	0.016
1.04	2.299	0.015
1.06	2.299	0.015
1.08	2.299	0.014
1.1	2.299	0.014
1.12	2.299	0.013
1.14	2.299	0.012
1.16	2.299	0.01
1.18	2.298	0.01
1.2	2.298	0.009
1.22	2.297	0.008
1.24	2.297	0.007
1.26	2.296	0.007
1.28	2.296	0.006
1.3	2.295	0.005
1.32	2.294	0.005
1.34	2.293	0.005
1.36	2.293	0.004
1.38	2.292	0.004
1.4	2.292	0.004
1.42	2.292	0.004
1.44	2.291	0.004
1.46	2.291	0.003
1.48	2.291	0.002
1.5	2.29	0.002
1.52	2.29	0.002
1.54	2.289	0.001
1.56	2.289	0.001
1.58	2.289	0.001
1.6	2.288	0.0
1.62	2.288	0.0
1.64	2.287	0.0
1.66	2.286	0.0
1.68	2.286	0.0
1.7	2.286	0.0
1.72	2.286	0.0
1.74	2.286	0.0
1.76	2.286	0.0
1.78	2.286	0.0
1.8	2.286	0.0
1.82	2.286	0.0
1.84	2.287	0.0
1.86	2.287	0.0
1.88	2.287	0.0
1.9	2.287	0.0
1.92	2.287	0.0
1.94	2.287	0.0
1.96	2.286	0.0
1.98	2.286	0.0
2.0	2.285	0.0
2.02	2.285	0.0
2.04	2.284	0.0
2.06	2.284	0.0
2.08	2.283	0.0
2.1	2.281	0.0
2.12	2.28	0.0
2.14	2.28	0.0
2.16	2.279	0.0
2.18	2.278	0.0
2.2	2.278	0.0
2.22	2.277	0.0
2.24	2.277	0.0
2.26	2.276	0.0
2.28	2.276	0.0
2.3	2.275	0.0
2.32	2.274	0.0
2.34	2.273	0.0
2.36	2.272	0.0
2.38	2.271	0.0
2.4	2.271	0.0
2.42	2.27	0.0
2.44	2.269	0.0
2.46	2.268	0.0
2.48	2.268	0.0
2.5	2.268	0.003
2.5126	2.268	0.002
2.5253	2.268	0.002
2.5381	2.268	0.002
2.551	2.268	0.002
2.5641	2.268	0.002
2.5773	2.268	0.002
2.5907	2.268	0.002
2.6042	2.268	0.002
2.6178	2.268	0.002
2.6316	2.268	0.002
2.6455	2.268	0.001
2.6596	2.268	0.001
2.6738	2.268	0.001
2.6882	2.267	0.001
2.7027	2.267	0.001
2.7174	2.267	0.0
2.7322	2.267	0.0
2.7473	2.266	0.0
2.7624	2.266	0.0
2.7778	2.266	0.0
2.7933	2.265	0.0
2.809	2.265	0.0
2.8249	2.264	0.0
2.8409	2.264	0.0
2.8571	2.264	0.0
2.8736	2.263	0.0
2.8902	2.263	0.0
2.907	2.263	0.0
2.924	2.263	0.0
2.9412	2.263	0.0
2.9586	2.262	0.0
2.9762	2.262	0.0
2.994	2.262	0.0
3.012	2.262	0.0
3.0303	2.262	0.0
3.0488	2.261	0.0
3.0675	2.261	0.001
3.0864	2.261	0.0
3.1056	2.261	0.0
3.125	2.261	0.001
3.1447	2.26	0.001
3.1646	2.26	0.001
3.1847	2.26	0.001
3.2051	2.26	0.0
3.2258	2.26	0.001
3.2468	2.26	0.0
3.268	2.259	0.001
3.2895	2.259	0.001
3.3113	2.259	0.001
3.3333	2.259	0.001
3.3557	2.259	0.001
3.3784	2.259	0.001
3.4014	2.259	0.001
3.4247	2.258	0.001
3.4483	2.258	0.001
3.4722	2.258	0.001
3.4965	2.258	0.001
3.5211	2.258	0.001
3.5461	2.258	0.001
3.5714	2.258	0.001
3.5971	2.257	0.001
3.6232	2.257	0.001
3.6496	2.257	0.001
3.6765	2.257	0.001
3.7037	2.257	0.001
3.7313	2.257	0.001
3.7594	2.257	0.001
3.7879	2.256	0.001
3.8168	2.256	0.001
3.8462	2.256	0.001
3.876	2.256	0.001
3.9063	2.256	0.0
3.937	2.256	0.0
3.9683	2.255	0.0
4.0	2.255	0.0
4.0323	2.255	0.0
4.065	2.254	0.0
4.0984	2.254	0.0
4.1322	2.254	0.0
4.1667	2.253	0.0
4.2017	2.253	0.0
4.2373	2.252	0.0
4.2735	2.252	0.0
4.3103	2.252	0.0
4.3478	2.251	0.0
4.386	2.251	0.001
4.4248	2.251	0.001
4.4643	2.25	0.001
4.5045	2.25	0.001
4.5455	2.25	0.001
4.5872	2.25	0.001
4.6296	2.25	0.001
4.6729	2.25	0.001
4.717	2.249	0.001
4.7619	2.249	0.001
4.8077	2.249	0.001
4.8544	2.249	0.0
4.902	2.248	0.0
4.9505	2.248	0.0
5.0	2.248	0.001
5.0505	2.247	0.001
5.102	2.247	0.001
5.1546	2.247	0.0
5.2083	2.246	0.0
5.2632	2.246	0.0
5.3191	2.246	0.0
5.3763	2.245	0.0
5.4348	2.244	0.0
5.4945	2.244	0.0
5.5556	2.243	0.0
5.618	2.242	0.0
5.6818	2.242	0.0
5.7471	2.241	0.0
5.814	2.24	0.0
5.8824	2.239	0.0
5.9524	2.239	0.0
6.0241	2.238	0.0
6.0976	2.237	0.001
6.1728	2.236	0.001
6.25	2.236	0.001
6.3291	2.235	0.001
6.4103	2.235	0.002
6.4935	2.234	0.002
6.5789	2.234	0.002
6.6667	2.233	0.002
6.7568	2.232	0.002
6.8493	2.232	0.002
6.9444	2.231	0.003
7.0423	2.23	0.003
7.1429	2.229	0.003
7.2464	2.229	0.003
7.3529	2.228	0.003
7.4627	2.227	0.003
7.5758	2.226	0.003
7.6923	2.225	0.003
7.8125	2.224	0.003
7.9365	2.223	0.003
8.0645	2.221	0.003
8.1967	2.22	0.004
8.3333	2.219	0.004
8.4746	2.217	0.004
8.6207	2.216	0.003
8.7719	2.214	0.003
8.9286	2.213	0.003
9.0909	2.211	0.003
9.2593	2.209	0.003
9.434	2.207	0.003
9.6154	2.204	0.003
9.8039	2.201	0.002
10.0	2.199	0.002
10.2041	2.196	0.002
10.4167	2.192	0.002
10.6383	2.189	0.002
10.8696	2.185	0.002
11.1111	2.18	0.002
11.3536	2.176	0.003
11.6279	2.172	0.003
11.9048	2.167	0.004
12.1951	2.161	0.004
12.5	2.155	0.005
12.8205	2.149	0.006
13.1579	2.141	0.006
13.5135	2.133	0.007
13.8889	2.125	0.01
14.2857	2.116	0.012
14.7059	2.107	0.014
15.1515	2.097	0.016
15.625	2.086	0.017
16.129	2.074	0.018
16.6667	2.059	0.019
17.2414	2.042	0.019
17.8571	2.021	0.017
18.5185	1.995	0.016
19.2308	1.96	0.018
20.0	1.923	0.026
20.8333	1.883	0.029
21.7391	1.828	0.027
22.7273	1.751	0.028
23.8095	1.648	0.037
25.0	1.507	0.048
26.3158	1.296	0.066
27.7778	0.865	0.097
29.4118	0.093	0.944
31.25	0.107	2.072
33.3333	0.702	3.451
35.7143	2.653	5.788
38.4615	6.369	1.269
41.6667	4.347	0.153
45.4545	3.709	0.171
50.0	3.465	0.173
55.5556	3.324	0.151
62.5	3.223	0.12
71.4286	3.15	0.098
83.3333	3.097	0.079
100.0	3.058	0.063
125.0	3.029	0.049
166.6667	3.008	0.036

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: —

ZnS (Zinc sulfide): all datasets

Crystal

Thin film

Amotchkina et al, 2020: n 0.4–14 µm, k 0.4–1.0 µm n,k 0.4–14 µm

Models and simulations

Ozaki and Adachi 1993: Cubic ZnS; n,k 0.221–1.03 µm n,k 0.2214–1.033 µm

About ZnS (Zinc sulfide)

Zinc sulfide (ZnS) is a semiconducting material that exhibits either a sphalerite (cubic) or wurtzite (hexagonal) crystal structure. It has a direct bandgap of around 3.68 eV for the cubic form and 3.91 eV for the hexagonal form. Due to its luminescent properties, ZnS has been extensively used in applications like electroluminescent panels, X-ray screens, and phosphorescent materials. Doped ZnS, especially with copper or silver, can produce phosphorescent materials widely used in various displays. ZnS is also employed as a host matrix in many quantum dot applications. Additionally, its infrared transmission capability makes it valuable for infrared optics, and it's frequently used in infrared windows and lenses. Minerals: Sphalerite (mineral of cubic ZnS), Wurtzite (mineral of hexagonal ZnS)

More about ZnS (Zinc sulfide) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/ZnS/nk/Querry.yml
ID: ds_e44ab5947679
API: /v1/datasets/ds_e44ab5947679

Plot