Optical constants

Refractive index of ZnS (Zinc sulfide)

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

Data: tabulated nk
Range: 0.2214–1.033 µm
Points: 500
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 2.38702
Extinction coefficient k: 0.0373533

Permittivity ε₁: 5.69649
Permittivity ε₂: 0.178327

Absorption coefficient α: 7988.36 cm⁻¹
Penetration depth δ = λ/(2πk): 2503.64 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.44898 µm⁻¹

Group index n_g: 2.65084
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): Ozaki and Adachi 1993: Cubic ZnS; n,k 0.221–1.03 µm
zns = ls.fetch_refractiveindex("main", "ZnS", "Ozaki", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(zns.range_nm)  # (221.4, 1033.2) 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_2a9e97d2d8ac/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/ozaki-adachi-1993).

# ... 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.

Comments and conditions

Fit of author's experimental data to a simplified model of the interband transitions (MDF). Room Temperature.

References

S. Ozaki and S. Adachi. Optical constants of cubic ZnS. Jpn. J. Appl. Phys. 32, 5008-5013 (1993)
[Calculation script (Python)]

doi:10.1143/jjap.32.5008 Optical Constants of Cubic ZnS, Japanese Journal of Applied Physics (1993)

Cite

Shunji Ozaki Shunji Ozaki and Sadao Adachi Sadao Adachi. Optical Constants of Cubic ZnS. Japanese Journal of Applied Physics, 32, 5008 (1993), doi:10.1143/jjap.32.5008; [Calculation script (Python)]; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

500 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), Ozaki and Adachi 1993: Cubic ZnS; n,k 0.221–1.03 µm: n and k versus wavelength
λ (µm)	n	k
0.2214	3.0789	1.684
0.22175	3.0893	1.6649
0.2221	3.099	1.6457
0.22245	3.1082	1.6265
0.2228	3.1168	1.6072
0.22316	3.1247	1.588
0.22351	3.1321	1.5688
0.22387	3.139	1.5496
0.22422	3.1453	1.5305
0.22458	3.151	1.5115
0.22494	3.1563	1.4926
0.2253	3.161	1.4739
0.22566	3.1652	1.4553
0.22603	3.169	1.4369
0.22639	3.1722	1.4186
0.22676	3.1751	1.4006
0.22712	3.1775	1.3827
0.22749	3.1795	1.3651
0.22786	3.1811	1.3476
0.22823	3.1824	1.3304
0.2286	3.1832	1.3135
0.22897	3.1838	1.2968
0.22935	3.184	1.2803
0.22972	3.1839	1.2641
0.2301	3.1835	1.2482
0.23047	3.1828	1.2325
0.23085	3.1819	1.2171
0.23123	3.1807	1.202
0.23161	3.1792	1.1871
0.23199	3.1776	1.1725
0.23238	3.1757	1.1582
0.23276	3.1736	1.1441
0.23315	3.1714	1.1303
0.23354	3.1689	1.1168
0.23392	3.1663	1.1035
0.23431	3.1636	1.0905
0.2347	3.1607	1.0777
0.2351	3.1577	1.0652
0.23549	3.1546	1.053
0.23589	3.1513	1.041
0.23628	3.148	1.0292
0.23668	3.1445	1.0177
0.23708	3.141	1.0064
0.23748	3.1374	0.9954
0.23788	3.1337	0.98459
0.23828	3.13	0.97401
0.23869	3.1262	0.96366
0.23909	3.1224	0.95352
0.2395	3.1185	0.94359
0.23991	3.1145	0.93387
0.24032	3.1106	0.92436
0.24073	3.1066	0.91505
0.24114	3.1026	0.90594
0.24156	3.0985	0.89702
0.24197	3.0945	0.88828
0.24239	3.0904	0.87973
0.24281	3.0864	0.87136
0.24323	3.0823	0.86316
0.24365	3.0782	0.85514
0.24407	3.0742	0.84728
0.2445	3.0701	0.83958
0.24493	3.066	0.83205
0.24535	3.062	0.82466
0.24578	3.058	0.81743
0.24621	3.054	0.81035
0.24664	3.05	0.80341
0.24708	3.046	0.79661
0.24751	3.0421	0.78994
0.24795	3.0382	0.78341
0.24839	3.0343	0.77701
0.24883	3.0304	0.77073
0.24927	3.0266	0.76457
0.24971	3.0227	0.75854
0.25015	3.019	0.75262
0.2506	3.0152	0.74681
0.25105	3.0115	0.74111
0.2515	3.0078	0.73552
0.25195	3.0042	0.73003
0.2524	3.0006	0.72464
0.25285	2.997	0.71935
0.25331	2.9935	0.71415
0.25377	2.99	0.70905
0.25422	2.9866	0.70403
0.25469	2.9831	0.69911
0.25515	2.9798	0.69427
0.25561	2.9764	0.68951
0.25608	2.9732	0.68482
0.25654	2.9699	0.68022
0.25701	2.9667	0.67569
0.25748	2.9635	0.67124
0.25796	2.9604	0.66685
0.25843	2.9573	0.66253
0.25891	2.9543	0.65828
0.25938	2.9513	0.65409
0.25986	2.9483	0.64997
0.26034	2.9454	0.6459
0.26083	2.9425	0.6419
0.26131	2.9397	0.63795
0.2618	2.9369	0.63405
0.26229	2.9341	0.6302
0.26278	2.9314	0.62641
0.26327	2.9287	0.62267
0.26376	2.9261	0.61897
0.26426	2.9235	0.61532
0.26476	2.921	0.61171
0.26526	2.9185	0.60815
0.26576	2.916	0.60462
0.26626	2.9136	0.60114
0.26676	2.9112	0.59769
0.26727	2.9088	0.59428
0.26778	2.9065	0.5909
0.26829	2.9042	0.58756
0.2688	2.902	0.58425
0.26932	2.8998	0.58097
0.26984	2.8977	0.57771
0.27036	2.8955	0.57449
0.27088	2.8934	0.57129
0.2714	2.8914	0.56812
0.27192	2.8894	0.56497
0.27245	2.8874	0.56185
0.27298	2.8855	0.55875
0.27351	2.8836	0.55566
0.27404	2.8817	0.5526
0.27458	2.8798	0.54955
0.27512	2.878	0.54652
0.27566	2.8763	0.54351
0.2762	2.8745	0.54051
0.27674	2.8728	0.53753
0.27729	2.8711	0.53455
0.27783	2.8695	0.53159
0.27838	2.8678	0.52864
0.27894	2.8662	0.5257
0.27949	2.8647	0.52276
0.28005	2.8631	0.51983
0.28061	2.8616	0.51691
0.28117	2.8602	0.514
0.28173	2.8587	0.51108
0.2823	2.8573	0.50817
0.28286	2.8559	0.50527
0.28343	2.8545	0.50236
0.28401	2.8531	0.49945
0.28458	2.8518	0.49655
0.28516	2.8504	0.49364
0.28574	2.8491	0.49073
0.28632	2.8479	0.48781
0.2869	2.8466	0.48489
0.28749	2.8453	0.48196
0.28808	2.8441	0.47903
0.28867	2.8429	0.47609
0.28927	2.8417	0.47315
0.28986	2.8405	0.47019
0.29046	2.8393	0.46723
0.29106	2.8381	0.46425
0.29167	2.837	0.46127
0.29227	2.8358	0.45827
0.29288	2.8346	0.45526
0.29349	2.8335	0.45223
0.29411	2.8323	0.44919
0.29472	2.8312	0.44614
0.29534	2.83	0.44307
0.29596	2.8288	0.43999
0.29659	2.8276	0.43689
0.29721	2.8265	0.43378
0.29784	2.8253	0.43065
0.29848	2.824	0.4275
0.29911	2.8228	0.42434
0.29975	2.8215	0.42116
0.30039	2.8203	0.41796
0.30103	2.8189	0.41475
0.30168	2.8176	0.41152
0.30233	2.8162	0.40828
0.30298	2.8147	0.40503
0.30363	2.8133	0.40177
0.30429	2.8117	0.3985
0.30495	2.8101	0.39523
0.30561	2.8084	0.39195
0.30628	2.8067	0.38867
0.30695	2.8049	0.3854
0.30762	2.803	0.38215
0.30829	2.8009	0.37891
0.30897	2.7988	0.3757
0.30965	2.7966	0.37253
0.31033	2.7942	0.36941
0.31102	2.7917	0.36636
0.31171	2.789	0.36339
0.3124	2.7862	0.36052
0.3131	2.7831	0.35779
0.3138	2.7799	0.35522
0.3145	2.7765	0.35285
0.3152	2.7729	0.35073
0.31591	2.7691	0.34892
0.31662	2.765	0.34747
0.31734	2.7608	0.34647
0.31806	2.7563	0.34601
0.31878	2.7518	0.3462
0.3195	2.7471	0.34715
0.32023	2.7426	0.34898
0.32096	2.7382	0.35183
0.32169	2.7344	0.35579
0.32243	2.7312	0.36089
0.32317	2.7292	0.36712
0.32392	2.7287	0.37431
0.32466	2.7299	0.38218
0.32542	2.7333	0.39029
0.32617	2.7389	0.3981
0.32693	2.7467	0.40503
0.32769	2.7562	0.41059
0.32846	2.7671	0.41454
0.32923	2.7789	0.41693
0.33	2.7916	0.41792
0.33077	2.8052	0.41757
0.33155	2.8201	0.41556
0.33234	2.8364	0.41121
0.33313	2.8536	0.40362
0.33392	2.8707	0.39204
0.33471	2.8864	0.37629
0.33551	2.899	0.35695
0.33631	2.9078	0.33523
0.33712	2.9122	0.31259
0.33793	2.9126	0.29031
0.33874	2.9097	0.26933
0.33956	2.9042	0.25017
0.34038	2.8969	0.23301
0.34121	2.8885	0.21784
0.34204	2.8794	0.20451
0.34287	2.8699	0.19284
0.34371	2.8603	0.18262
0.34455	2.8508	0.17365
0.3454	2.8414	0.16575
0.34625	2.8322	0.15876
0.34711	2.8233	0.15255
0.34796	2.8147	0.14701
0.34883	2.8064	0.14204
0.3497	2.7984	0.13756
0.35057	2.7906	0.1335
0.35144	2.7832	0.12981
0.35232	2.776	0.12644
0.35321	2.769	0.12335
0.3541	2.7623	0.1205
0.35499	2.7557	0.11787
0.35589	2.7494	0.11542
0.35679	2.7433	0.11315
0.3577	2.7374	0.11102
0.35861	2.7317	0.10903
0.35953	2.7261	0.10715
0.36045	2.7207	0.10539
0.36138	2.7154	0.10372
0.36231	2.7102	0.10214
0.36325	2.7052	0.10064
0.36419	2.7003	0.099208
0.36513	2.6956	0.097847
0.36608	2.6909	0.096546
0.36704	2.6864	0.095301
0.368	2.6819	0.094108
0.36897	2.6776	0.092962
0.36994	2.6733	0.09186
0.37091	2.6692	0.090799
0.37189	2.6651	0.089775
0.37288	2.6611	0.088786
0.37387	2.6571	0.08783
0.37487	2.6533	0.086905
0.37587	2.6495	0.086009
0.37688	2.6458	0.085139
0.37789	2.6421	0.084294
0.37891	2.6386	0.083473
0.37993	2.635	0.082675
0.38096	2.6316	0.081897
0.382	2.6281	0.08114
0.38304	2.6248	0.080401
0.38408	2.6215	0.07968
0.38514	2.6182	0.078977
0.38619	2.615	0.078289
0.38726	2.6119	0.077617
0.38833	2.6087	0.076959
0.3894	2.6057	0.076315
0.39048	2.6026	0.075685
0.39157	2.5997	0.075067
0.39266	2.5967	0.074462
0.39376	2.5938	0.073868
0.39487	2.5909	0.073285
0.39598	2.5881	0.072714
0.3971	2.5853	0.072152
0.39822	2.5825	0.0716
0.39936	2.5798	0.071058
0.40049	2.5771	0.070525
0.40164	2.5744	0.070002
0.40279	2.5718	0.069486
0.40394	2.5692	0.068979
0.40511	2.5666	0.06848
0.40628	2.5641	0.067988
0.40746	2.5616	0.067504
0.40864	2.5591	0.067028
0.40983	2.5566	0.066558
0.41103	2.5542	0.066095
0.41223	2.5518	0.065639
0.41345	2.5494	0.065189
0.41467	2.547	0.064745
0.41589	2.5447	0.064308
0.41713	2.5424	0.063876
0.41837	2.5401	0.06345
0.41962	2.5378	0.06303
0.42087	2.5356	0.062615
0.42214	2.5334	0.062205
0.42341	2.5312	0.0618
0.42468	2.529	0.061401
0.42597	2.5268	0.061006
0.42727	2.5247	0.060616
0.42857	2.5226	0.060231
0.42988	2.5205	0.05985
0.4312	2.5184	0.059474
0.43252	2.5164	0.059102
0.43386	2.5143	0.058735
0.4352	2.5123	0.058371
0.43655	2.5103	0.058012
0.43791	2.5083	0.057657
0.43928	2.5063	0.057305
0.44066	2.5044	0.056957
0.44204	2.5024	0.056614
0.44344	2.5005	0.056273
0.44484	2.4986	0.055937
0.44625	2.4967	0.055604
0.44767	2.4948	0.055274
0.4491	2.493	0.054948
0.45054	2.4911	0.054625
0.45199	2.4893	0.054305
0.45345	2.4875	0.053989
0.45491	2.4857	0.053675
0.45639	2.4839	0.053365
0.45788	2.4821	0.053058
0.45937	2.4804	0.052754
0.46088	2.4786	0.052453
0.46239	2.4769	0.052154
0.46392	2.4752	0.051859
0.46545	2.4735	0.051566
0.467	2.4718	0.051276
0.46856	2.4701	0.050989
0.47012	2.4685	0.050704
0.4717	2.4668	0.050422
0.47329	2.4652	0.050143
0.47489	2.4635	0.049866
0.47649	2.4619	0.049592
0.47812	2.4603	0.04932
0.47975	2.4587	0.04905
0.48139	2.4572	0.048783
0.48304	2.4556	0.048518
0.48471	2.454	0.048256
0.48638	2.4525	0.047996
0.48807	2.4509	0.047738
0.48977	2.4494	0.047482
0.49148	2.4479	0.047228
0.49321	2.4464	0.046977
0.49494	2.4449	0.046728
0.49669	2.4434	0.046481
0.49845	2.4419	0.046235
0.50023	2.4405	0.045992
0.50201	2.439	0.045751
0.50381	2.4376	0.045512
0.50562	2.4361	0.045275
0.50745	2.4347	0.04504
0.50929	2.4333	0.044806
0.51114	2.4319	0.044575
0.513	2.4305	0.044345
0.51488	2.4291	0.044118
0.51677	2.4277	0.043892
0.51868	2.4264	0.043667
0.5206	2.425	0.043445
0.52253	2.4236	0.043224
0.52448	2.4223	0.043005
0.52645	2.421	0.042788
0.52843	2.4196	0.042572
0.53042	2.4183	0.042358
0.53243	2.417	0.042146
0.53445	2.4157	0.041935
0.53649	2.4144	0.041726
0.53855	2.4131	0.041519
0.54062	2.4119	0.041313
0.5427	2.4106	0.041108
0.54481	2.4093	0.040906
0.54692	2.4081	0.040704
0.54906	2.4068	0.040504
0.55121	2.4056	0.040306
0.55338	2.4044	0.040109
0.55557	2.4032	0.039913
0.55777	2.4019	0.039719
0.55999	2.4007	0.039526
0.56223	2.3995	0.039335
0.56449	2.3983	0.039145
0.56677	2.3972	0.038956
0.56906	2.396	0.038769
0.57137	2.3948	0.038583
0.5737	2.3936	0.038399
0.57605	2.3925	0.038215
0.57842	2.3913	0.038033
0.58081	2.3902	0.037852
0.58322	2.3891	0.037673
0.58565	2.3879	0.037495
0.5881	2.3868	0.037317
0.59057	2.3857	0.037142
0.59306	2.3846	0.036967
0.59557	2.3835	0.036794
0.59811	2.3824	0.036621
0.60066	2.3813	0.03645
0.60324	2.3802	0.03628
0.60584	2.3791	0.036112
0.60846	2.3781	0.035944
0.6111	2.377	0.035777
0.61377	2.3759	0.035612
0.61646	2.3749	0.035448
0.61918	2.3738	0.035284
0.62192	2.3728	0.035122
0.62468	2.3718	0.034961
0.62747	2.3707	0.034801
0.63028	2.3697	0.034642
0.63312	2.3687	0.034484
0.63598	2.3677	0.034327
0.63887	2.3667	0.034171
0.64179	2.3657	0.034016
0.64473	2.3647	0.033862
0.6477	2.3637	0.033709
0.6507	2.3627	0.033557
0.65372	2.3617	0.033406
0.65677	2.3608	0.033256
0.65986	2.3598	0.033107
0.66297	2.3588	0.032959
0.66611	2.3579	0.032812
0.66928	2.3569	0.032665
0.67248	2.356	0.03252
0.67571	2.355	0.032376
0.67897	2.3541	0.032232
0.68227	2.3532	0.032089
0.6856	2.3523	0.031947
0.68895	2.3513	0.031806
0.69235	2.3504	0.031666
0.69577	2.3495	0.031527
0.69923	2.3486	0.031389
0.70273	2.3477	0.031251
0.70626	2.3468	0.031114
0.70982	2.3459	0.030978
0.71342	2.345	0.030843
0.71706	2.3442	0.030709
0.72074	2.3433	0.030575
0.72445	2.3424	0.030443
0.7282	2.3415	0.030311
0.73199	2.3407	0.03018
0.73582	2.3398	0.030049
0.7397	2.339	0.02992
0.74361	2.3381	0.029791
0.74756	2.3373	0.029663
0.75156	2.3365	0.029535
0.75559	2.3356	0.029409
0.75968	2.3348	0.029283
0.7638	2.334	0.029158
0.76798	2.3331	0.029033
0.77219	2.3323	0.02891
0.77646	2.3315	0.028787
0.78077	2.3307	0.028664
0.78513	2.3299	0.028543
0.78954	2.3291	0.028422
0.794	2.3283	0.028302
0.7985	2.3275	0.028182
0.80306	2.3267	0.028063
0.80768	2.326	0.027945
0.81234	2.3252	0.027827
0.81706	2.3244	0.02771
0.82184	2.3237	0.027594
0.82667	2.3229	0.027479
0.83156	2.3221	0.027364
0.83651	2.3214	0.027249
0.84151	2.3206	0.027136
0.84658	2.3199	0.027022
0.85171	2.3191	0.02691
0.8569	2.3184	0.026798
0.86215	2.3177	0.026687
0.86747	2.3169	0.026576
0.87286	2.3162	0.026466
0.87831	2.3155	0.026357
0.88383	2.3147	0.026248
0.88942	2.314	0.026139
0.89508	2.3133	0.026032
0.90082	2.3126	0.025925
0.90663	2.3119	0.025818
0.91251	2.3112	0.025712
0.91847	2.3105	0.025607
0.92451	2.3098	0.025502
0.93063	2.3091	0.025397
0.93683	2.3084	0.025293
0.94311	2.3078	0.02519
0.94948	2.3071	0.025087
0.95593	2.3064	0.024985
0.96248	2.3057	0.024884
0.96911	2.3051	0.024782
0.97584	2.3044	0.024682
0.98266	2.3037	0.024582
0.98957	2.3031	0.024482
0.99659	2.3024	0.024383
1.0037	2.3018	0.024284
1.0109	2.3011	0.024186
1.0182	2.3005	0.024089
1.0257	2.2998	0.023992
1.0332	2.2992	0.023895

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/Ozaki.yml
ID: ds_2a9e97d2d8ac
API: /v1/datasets/ds_2a9e97d2d8ac

Plot