Optical constants

Refractive index of ZnTe (Zinc telluride)

Sato and Adachi 1993: n,k 0.221–0.827 µm

Data: tabulated nk
Range: 0.2214–0.8266 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: 3.10209
Extinction coefficient k: 0.074527

Permittivity ε₁: 9.61743
Permittivity ε₂: 0.462379

Absorption coefficient α: 15938.3 cm⁻¹
Penetration depth δ = λ/(2πk): 1254.84 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -2.48908 µm⁻¹

Group index n_g: 4.56468
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

# ZnTe (Zinc telluride): Sato and Adachi 1993: n,k 0.221–0.827 µm
znte = ls.fetch_refractiveindex("main", "ZnTe", "Sato", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(znte.range_nm)  # (221.4, 826.56) nm
eps = znte.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_b7b92aa9ccc1/lightsmith"
znte = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(znte.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (znte/sato-adachi-1993).

# ... load znte as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=znte)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=826, 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

K. Sato and S. Adachi. Optical properties of ZnTe. J. Appl. Phys. 73, 926-931 (1993)
[Calculation script (Python)]

doi:10.1063/1.353305 Optical properties of ZnTe, Journal of Applied Physics (1993)

Cite

Kohzo Sato and Sadao Adachi. Optical properties of ZnTe. Journal of Applied Physics, 73, 926-931 (1993), doi:10.1063/1.353305; [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

ZnTe (Zinc telluride), Sato and Adachi 1993: n,k 0.221–0.827 µm: n and k versus wavelength
λ (µm)	n	k
0.2214	1.914	2.7927
0.22173	1.9279	2.7989
0.22205	1.9421	2.8051
0.22238	1.9565	2.8111
0.22271	1.9713	2.8169
0.22304	1.9863	2.8225
0.22337	2.0016	2.828
0.2237	2.0172	2.8333
0.22403	2.033	2.8383
0.22436	2.0492	2.8431
0.2247	2.0656	2.8477
0.22503	2.0823	2.8521
0.22537	2.0993	2.8561
0.22571	2.1165	2.8599
0.22604	2.134	2.8634
0.22638	2.1518	2.8665
0.22672	2.1698	2.8693
0.22706	2.1881	2.8718
0.22741	2.2066	2.8739
0.22775	2.2253	2.8756
0.22809	2.2443	2.877
0.22844	2.2634	2.8779
0.22879	2.2828	2.8783
0.22913	2.3023	2.8784
0.22948	2.322	2.878
0.22983	2.3418	2.8771
0.23018	2.3617	2.8757
0.23053	2.3818	2.8738
0.23089	2.4019	2.8714
0.23124	2.4221	2.8685
0.23159	2.4423	2.8651
0.23195	2.4626	2.8611
0.23231	2.4828	2.8565
0.23267	2.5031	2.8515
0.23302	2.5232	2.8458
0.23339	2.5433	2.8396
0.23375	2.5632	2.8329
0.23411	2.5831	2.8255
0.23447	2.6027	2.8177
0.23484	2.6221	2.8092
0.2352	2.6414	2.8003
0.23557	2.6603	2.7908
0.23594	2.679	2.7807
0.23631	2.6974	2.7702
0.23668	2.7154	2.7591
0.23705	2.7331	2.7476
0.23742	2.7504	2.7356
0.2378	2.7673	2.7231
0.23817	2.7837	2.7102
0.23855	2.7997	2.6969
0.23893	2.8152	2.6833
0.23931	2.8303	2.6692
0.23969	2.8448	2.6549
0.24007	2.8588	2.6402
0.24045	2.8723	2.6253
0.24084	2.8853	2.6101
0.24122	2.8976	2.5947
0.24161	2.9095	2.5792
0.24199	2.9208	2.5634
0.24238	2.9315	2.5475
0.24277	2.9416	2.5315
0.24316	2.9512	2.5155
0.24356	2.9602	2.4994
0.24395	2.9687	2.4833
0.24434	2.9766	2.4671
0.24474	2.984	2.4511
0.24514	2.9909	2.435
0.24554	2.9972	2.4191
0.24594	3.003	2.4032
0.24634	3.0083	2.3875
0.24674	3.0132	2.3719
0.24715	3.0175	2.3565
0.24755	3.0214	2.3413
0.24796	3.0249	2.3263
0.24837	3.028	2.3114
0.24878	3.0306	2.2968
0.24919	3.0328	2.2825
0.2496	3.0347	2.2684
0.25001	3.0362	2.2545
0.25043	3.0374	2.241
0.25084	3.0383	2.2277
0.25126	3.0389	2.2147
0.25168	3.0391	2.202
0.2521	3.0391	2.1895
0.25252	3.0389	2.1774
0.25295	3.0384	2.1656
0.25337	3.0376	2.1541
0.2538	3.0367	2.1429
0.25422	3.0356	2.132
0.25465	3.0343	2.1215
0.25508	3.0328	2.1112
0.25552	3.0312	2.1013
0.25595	3.0295	2.0916
0.25638	3.0276	2.0823
0.25682	3.0256	2.0733
0.25726	3.0236	2.0646
0.2577	3.0214	2.0562
0.25814	3.0191	2.0481
0.25858	3.0168	2.0403
0.25902	3.0144	2.0327
0.25947	3.012	2.0255
0.25992	3.0095	2.0186
0.26037	3.0071	2.0119
0.26082	3.0045	2.0055
0.26127	3.002	1.9994
0.26172	2.9995	1.9936
0.26218	2.9969	1.988
0.26263	2.9944	1.9827
0.26309	2.9919	1.9777
0.26355	2.9894	1.9729
0.26401	2.9869	1.9683
0.26447	2.9845	1.9641
0.26494	2.9821	1.96
0.2654	2.9797	1.9562
0.26587	2.9774	1.9527
0.26634	2.9751	1.9494
0.26681	2.9729	1.9463
0.26728	2.9708	1.9434
0.26776	2.9687	1.9408
0.26823	2.9667	1.9384
0.26871	2.9647	1.9362
0.26919	2.9628	1.9343
0.26967	2.9611	1.9325
0.27015	2.9594	1.931
0.27064	2.9577	1.9298
0.27113	2.9562	1.9287
0.27161	2.9548	1.9278
0.2721	2.9535	1.9272
0.27259	2.9522	1.9268
0.27309	2.9511	1.9266
0.27358	2.9501	1.9266
0.27408	2.9492	1.9269
0.27458	2.9485	1.9273
0.27508	2.9479	1.928
0.27558	2.9474	1.929
0.27609	2.947	1.9301
0.27659	2.9468	1.9315
0.2771	2.9468	1.9331
0.27761	2.9469	1.935
0.27812	2.9472	1.9371
0.27863	2.9477	1.9395
0.27915	2.9484	1.9421
0.27967	2.9493	1.945
0.28019	2.9505	1.9482
0.28071	2.9519	1.9516
0.28123	2.9535	1.9553
0.28176	2.9554	1.9593
0.28228	2.9576	1.9636
0.28281	2.9602	1.9682
0.28334	2.9631	1.9731
0.28388	2.9664	1.9784
0.28441	2.9702	1.9839
0.28495	2.9744	1.9898
0.28549	2.9792	1.9961
0.28603	2.9845	2.0026
0.28657	2.9905	2.0095
0.28712	2.9973	2.0166
0.28766	3.0049	2.024
0.28821	3.0133	2.0317
0.28877	3.0228	2.0395
0.28932	3.0333	2.0473
0.28988	3.0449	2.0551
0.29043	3.0579	2.0628
0.29099	3.072	2.0702
0.29156	3.0876	2.0771
0.29212	3.1045	2.0833
0.29269	3.1227	2.0887
0.29326	3.1423	2.093
0.29383	3.163	2.096
0.2944	3.1849	2.0974
0.29498	3.2077	2.0972
0.29555	3.2312	2.0951
0.29613	3.2551	2.0909
0.29672	3.2793	2.0846
0.2973	3.3032	2.0761
0.29789	3.3267	2.0654
0.29848	3.3494	2.0526
0.29907	3.3711	2.0379
0.29966	3.3913	2.0213
0.30026	3.41	2.0032
0.30086	3.4269	1.9837
0.30146	3.4419	1.9633
0.30206	3.4549	1.9421
0.30267	3.4659	1.9205
0.30328	3.4749	1.8987
0.30389	3.4821	1.8771
0.3045	3.4874	1.8557
0.30511	3.491	1.8349
0.30573	3.4931	1.8147
0.30635	3.4939	1.7954
0.30698	3.4934	1.777
0.3076	3.4918	1.7595
0.30823	3.4894	1.7431
0.30886	3.4862	1.7277
0.3095	3.4823	1.7134
0.31013	3.478	1.7002
0.31077	3.4732	1.688
0.31141	3.4682	1.6768
0.31206	3.4629	1.6666
0.3127	3.4576	1.6574
0.31335	3.4521	1.6491
0.314	3.4466	1.6417
0.31466	3.4412	1.6351
0.31532	3.4358	1.6294
0.31598	3.4306	1.6244
0.31664	3.4255	1.6202
0.3173	3.4206	1.6168
0.31797	3.4159	1.6141
0.31864	3.4114	1.6121
0.31932	3.4071	1.6107
0.32	3.4031	1.6101
0.32068	3.3994	1.6102
0.32136	3.3959	1.6109
0.32205	3.3928	1.6123
0.32273	3.39	1.6145
0.32343	3.3876	1.6174
0.32412	3.3856	1.6211
0.32482	3.3841	1.6255
0.32552	3.3831	1.6308
0.32622	3.3826	1.6369
0.32693	3.3829	1.644
0.32764	3.384	1.6519
0.32835	3.386	1.6608
0.32907	3.3891	1.6707
0.32979	3.3935	1.6814
0.33051	3.3992	1.6931
0.33124	3.4066	1.7056
0.33196	3.4158	1.7189
0.3327	3.4271	1.7327
0.33343	3.4406	1.7469
0.33417	3.4566	1.7613
0.33491	3.4753	1.7755
0.33566	3.4967	1.7892
0.3364	3.521	1.8021
0.33716	3.5481	1.8137
0.33791	3.5782	1.8235
0.33867	3.6109	1.8312
0.33943	3.6462	1.8361
0.3402	3.6836	1.838
0.34097	3.7229	1.8364
0.34174	3.7636	1.831
0.34251	3.805	1.8215
0.34329	3.8468	1.8079
0.34407	3.8882	1.7899
0.34486	3.9286	1.7678
0.34565	3.9674	1.7417
0.34644	4.0042	1.7118
0.34724	4.0385	1.6786
0.34804	4.0698	1.6424
0.34885	4.0978	1.6038
0.34966	4.1225	1.5632
0.35047	4.1435	1.5212
0.35128	4.161	1.4783
0.3521	4.175	1.4349
0.35293	4.1857	1.3914
0.35375	4.1931	1.3482
0.35459	4.1975	1.3057
0.35542	4.1992	1.2641
0.35626	4.1984	1.2236
0.3571	4.1953	1.1843
0.35795	4.1902	1.1465
0.3588	4.1834	1.1101
0.35966	4.175	1.0752
0.36052	4.1654	1.0418
0.36138	4.1546	1.01
0.36225	4.1428	0.97973
0.36312	4.1303	0.95091
0.36399	4.1172	0.92351
0.36487	4.1035	0.8975
0.36576	4.0894	0.8728
0.36665	4.075	0.84936
0.36754	4.0604	0.82712
0.36844	4.0456	0.80602
0.36934	4.0308	0.78599
0.37025	4.0159	0.76697
0.37116	4.0009	0.74891
0.37207	3.986	0.73175
0.37299	3.9712	0.71544
0.37392	3.9564	0.69993
0.37484	3.9417	0.68518
0.37578	3.9271	0.67115
0.37672	3.9126	0.6578
0.37766	3.8982	0.64512
0.37861	3.8838	0.63309
0.37956	3.8694	0.62172
0.38052	3.855	0.61104
0.38148	3.8406	0.60113
0.38244	3.826	0.59215
0.38342	3.8113	0.5844
0.38439	3.7966	0.57843
0.38538	3.7824	0.57515
0.38636	3.7708	0.57554
0.38735	3.7661	0.57846
0.38835	3.771	0.57635
0.38935	3.7767	0.5608
0.39036	3.7718	0.53882
0.39137	3.7589	0.52039
0.39239	3.7438	0.50678
0.39341	3.7289	0.4964
0.39444	3.7147	0.48798
0.39548	3.7013	0.48076
0.39651	3.6886	0.47433
0.39756	3.6766	0.46847
0.39861	3.665	0.46302
0.39966	3.6539	0.4579
0.40073	3.6432	0.45306
0.40179	3.6328	0.44844
0.40287	3.6228	0.44403
0.40394	3.6131	0.4398
0.40503	3.6036	0.43573
0.40612	3.5944	0.43181
0.40721	3.5854	0.42803
0.40832	3.5766	0.42437
0.40942	3.5681	0.42082
0.41054	3.5598	0.41739
0.41166	3.5516	0.41406
0.41278	3.5437	0.41082
0.41392	3.5359	0.40767
0.41506	3.5283	0.40461
0.4162	3.5209	0.40163
0.41735	3.5136	0.39872
0.41851	3.5065	0.39588
0.41967	3.4995	0.39311
0.42084	3.4927	0.3904
0.42202	3.4861	0.38775
0.4232	3.4795	0.38516
0.42439	3.4732	0.38261
0.42559	3.4669	0.38012
0.42679	3.4608	0.37767
0.428	3.4548	0.37526
0.42922	3.4489	0.3729
0.43045	3.4432	0.37057
0.43168	3.4375	0.36827
0.43292	3.432	0.36601
0.43416	3.4266	0.36378
0.43541	3.4213	0.36157
0.43667	3.4162	0.35939
0.43794	3.4111	0.35723
0.43922	3.4061	0.3551
0.4405	3.4013	0.35298
0.44179	3.3965	0.35088
0.44309	3.3919	0.34879
0.44439	3.3873	0.34672
0.4457	3.3828	0.34465
0.44702	3.3784	0.3426
0.44835	3.3742	0.34055
0.44969	3.37	0.33851
0.45103	3.3659	0.33647
0.45238	3.3619	0.33443
0.45374	3.3579	0.33239
0.45511	3.3541	0.33035
0.45649	3.3503	0.3283
0.45788	3.3467	0.32625
0.45927	3.3431	0.32419
0.46067	3.3395	0.32212
0.46208	3.3361	0.32004
0.4635	3.3327	0.31794
0.46493	3.3294	0.31583
0.46637	3.3262	0.31371
0.46781	3.3231	0.31156
0.46927	3.32	0.30939
0.47073	3.317	0.3072
0.4722	3.314	0.30499
0.47369	3.3112	0.30274
0.47518	3.3083	0.30047
0.47668	3.3056	0.29816
0.47819	3.3029	0.29582
0.47971	3.3003	0.29345
0.48124	3.2977	0.29103
0.48278	3.2952	0.28857
0.48433	3.2927	0.28607
0.48589	3.2903	0.28352
0.48746	3.2879	0.28092
0.48904	3.2856	0.27827
0.49063	3.2834	0.27556
0.49223	3.2811	0.27279
0.49384	3.2789	0.26996
0.49546	3.2768	0.26706
0.49709	3.2746	0.2641
0.49874	3.2725	0.26105
0.50039	3.2705	0.25793
0.50205	3.2684	0.25472
0.50373	3.2663	0.25143
0.50542	3.2643	0.24804
0.50712	3.2622	0.24456
0.50883	3.2601	0.24098
0.51055	3.258	0.23728
0.51228	3.2558	0.23348
0.51403	3.2536	0.22956
0.51578	3.2513	0.22551
0.51755	3.2489	0.22135
0.51933	3.2463	0.21707
0.52113	3.2436	0.21266
0.52293	3.2406	0.20815
0.52475	3.2373	0.20356
0.52658	3.2336	0.19892
0.52843	3.2295	0.1943
0.53028	3.2246	0.18984
0.53215	3.219	0.18575
0.53404	3.2123	0.18243
0.53593	3.2043	0.18064
0.53784	3.1951	0.18173
0.53977	3.1857	0.1881
0.5417	3.1807	0.20267
0.54366	3.1902	0.22368
0.54562	3.2221	0.23365
0.5476	3.2565	0.21229
0.5496	3.2665	0.17515
0.55161	3.2577	0.14505
0.55363	3.243	0.12531
0.55567	3.2278	0.11263
0.55772	3.2139	0.10416
0.55979	3.2013	0.098216
0.56188	3.1899	0.093836
0.56398	3.1796	0.090467
0.56609	3.1701	0.087777
0.56822	3.1613	0.085561
0.57037	3.1532	0.083686
0.57253	3.1455	0.082063
0.57472	3.1382	0.080631
0.57691	3.1313	0.079348
0.57913	3.1247	0.078183
0.58136	3.1183	0.077112
0.58361	3.1122	0.076118
0.58587	3.1064	0.075188
0.58816	3.1007	0.074313
0.59046	3.0952	0.073483
0.59278	3.0899	0.072692
0.59511	3.0847	0.071935
0.59747	3.0796	0.071208
0.59985	3.0747	0.070508
0.60224	3.0699	0.069831
0.60465	3.0652	0.069175
0.60709	3.0606	0.068538
0.60954	3.0561	0.067918
0.61201	3.0517	0.067313
0.6145	3.0473	0.066724
0.61702	3.0431	0.066147
0.61955	3.0389	0.065582
0.6221	3.0348	0.06503
0.62468	3.0308	0.064487
0.62727	3.0268	0.063955
0.62989	3.0229	0.063432
0.63253	3.0191	0.062918
0.6352	3.0153	0.062412
0.63788	3.0116	0.061914
0.64059	3.0079	0.061424
0.64332	3.0043	0.060941
0.64607	3.0007	0.060465
0.64885	2.9972	0.059995
0.65165	2.9937	0.059532
0.65448	2.9903	0.059075
0.65733	2.9869	0.058623
0.66021	2.9835	0.058178
0.66311	2.9802	0.057737
0.66604	2.977	0.057302
0.66899	2.9737	0.056872
0.67197	2.9706	0.056447
0.67497	2.9674	0.056026
0.67801	2.9643	0.05561
0.68107	2.9612	0.055199
0.68415	2.9582	0.054792
0.68727	2.9552	0.054389
0.69042	2.9522	0.05399
0.69359	2.9492	0.053596
0.69679	2.9463	0.053205
0.70002	2.9434	0.052818
0.70329	2.9406	0.052434
0.70658	2.9378	0.052055
0.7099	2.935	0.051679
0.71326	2.9322	0.051306
0.71665	2.9295	0.050937
0.72007	2.9268	0.050571
0.72352	2.9241	0.050209
0.727	2.9214	0.049849
0.73052	2.9188	0.049493
0.73408	2.9162	0.04914
0.73767	2.9136	0.04879
0.74129	2.911	0.048442
0.74495	2.9085	0.048098
0.74865	2.906	0.047757
0.75238	2.9035	0.047418
0.75615	2.9011	0.047082
0.75996	2.8986	0.046749
0.7638	2.8962	0.046418
0.76769	2.8938	0.04609
0.77162	2.8914	0.045764
0.77558	2.8891	0.045442
0.77959	2.8867	0.045121
0.78364	2.8844	0.044803
0.78773	2.8821	0.044487
0.79186	2.8799	0.044174
0.79604	2.8776	0.043863
0.80026	2.8754	0.043554
0.80453	2.8732	0.043248
0.80884	2.871	0.042944
0.8132	2.8688	0.042641
0.8176	2.8667	0.042341
0.82206	2.8645	0.042044
0.82656	2.8624	0.041748

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: —

ZnTe (Zinc telluride): all datasets

Experimental data

Models and simulations

Sato and Adachi 1993: n,k 0.221–0.827 µm n,k 0.2214–0.8266 µm

About ZnTe (Zinc telluride)

Zinc telluride (ZnTe) is a binary II-VI semiconductor compound with a direct bandgap that makes it attractive for several optoelectronic applications. It has a cubic crystal structure and is known for its photoluminescent properties. ZnTe is particularly important in the development of semiconductor devices for terahertz frequencies. It is also utilized as a buffer layer in some solar cell configurations, especially in tandem with cadmium telluride (CdTe). Moreover, its ability to form alloyed compounds with other II-VI semiconductors, like CdTe, allows for the tuning of optical properties for specific applications. The compound is also studied for potential use in blue and green light-emitting diodes and laser diodes.

Zinc telluride - Wikipedia

More about ZnTe (Zinc telluride) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/ZnTe/nk/Sato.yml
ID: ds_b7b92aa9ccc1
API: /v1/datasets/ds_b7b92aa9ccc1

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