Optical constants

Refractive index of NbSe₂ (Niobium diselenide)

Munkhbat et al. 2022: multilayer flakes; n,k(e) 0.30–1.69 µm

Data: tabulated nk
Range: 0.3–1.69 µm
Points: 977
Optical axis: e
Licence: CC0-1.0

Uniaxial crystal, axes: oe

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 2.36799
Extinction coefficient k: 0.0515265

Permittivity ε₁: 5.6047
Permittivity ε₂: 0.244028

Absorption coefficient α: 11019.4 cm⁻¹
Penetration depth δ = λ/(2πk): 1814.98 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.926 µm⁻¹

Group index n_g: 2.9121
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

# NbSe2 (Niobium diselenide): Munkhbat et al. 2022: multilayer flakes; n,k(e) 0.30–1.69 µm
nbse2 = ls.fetch_refractiveindex("main", "NbSe2", "Munkhbat-e", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(nbse2.range_nm)  # (300, 1690) nm
eps = nbse2.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_1a871a074f80/lightsmith"
nbse2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(nbse2.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (nbse2/munkhbat-2022-e).

# ... load nbse2 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=nbse2)],
    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

Multilayer flakes. Out-of-plane (extraordinary ray, e). Room temperature.

Conditions

direction: e

References

B. Munkhbat, P. Wrobel, T. J. Antosiewicz, T. O. Shegai. Optical constants of several multilayer transition metal dichalcogenides spectroscopic ellipsometry in the 300–1700 nm range: High index, anisotropy, and hyperbolicity. ACS Photonics 9, 2398–2407 (2022) (Numerical data kindly provided by Tomasz Antosiewicz)

doi:10.1021/acsphotonics.2c00433 Optical Constants of Several Multilayer Transition Metal Dichalcogenides Measured by Spectroscopic Ellipsometry in the 300–1700 nm Range: High Index, Anisotropy, and Hyperbolicity, ACS Photonics (2022)

Cite

Battulga Munkhbat, Piotr Wróbel, Tomasz J. Antosiewicz and Timur O. Shegai. Optical Constants of Several Multilayer Transition Metal Dichalcogenides Measured by Spectroscopic Ellipsometry in the 300–1700 nm Range: High Index, Anisotropy, and Hyperbolicity. ACS Photonics, 9, 2398-2407 (2022), doi:10.1021/acsphotonics.2c00433; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

977 rows as published

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

NbSe2 (Niobium diselenide), Munkhbat et al. 2022: multilayer flakes; n,k(e) 0.30–1.69 µm: n and k versus wavelength
λ (µm)	n	k
0.3	2.757323	0.008381207
0.301	2.754171	0.008252292
0.302	2.751058	0.008136215
0.303	2.747983	0.008032635
0.304	2.744946	0.007941224
0.305	2.741946	0.007861667
0.306	2.738983	0.007793659
0.307	2.736055	0.007736907
0.308	2.733164	0.007691127
0.309	2.730307	0.007656048
0.31	2.727484	0.007631405
0.311	2.724696	0.007616946
0.312	2.721942	0.007612423
0.313	2.719221	0.007617602
0.314	2.716532	0.007632253
0.315	2.713877	0.007656155
0.316	2.711254	0.007689094
0.317	2.708663	0.007730864
0.318	2.706104	0.007781264
0.319	2.703577	0.007840099
0.32	2.701083	0.007907182
0.321	2.698623	0.007982328
0.322	2.696199	0.008062492
0.323	2.693808	0.00814318
0.324	2.691448	0.008224347
0.325	2.689116	0.008305999
0.326	2.686812	0.008388138
0.327	2.684534	0.008470767
0.328	2.682283	0.00855389
0.329	2.680056	0.008637507
0.33	2.677853	0.008721623
0.331	2.675674	0.008806238
0.332	2.673517	0.008891355
0.333	2.671383	0.008976976
0.334	2.669271	0.009063103
0.335	2.66718	0.009149737
0.336	2.665109	0.009236882
0.337	2.663059	0.009324537
0.338	2.661029	0.009412707
0.339	2.659018	0.009501391
0.34	2.657025	0.009590592
0.341	2.655051	0.009680312
0.342	2.653096	0.009770551
0.343	2.651157	0.009861314
0.344	2.649237	0.009952599
0.345	2.647333	0.01004441
0.346	2.645446	0.01013675
0.347	2.643575	0.01022961
0.348	2.64172	0.01032301
0.349	2.639881	0.01041694
0.35	2.638057	0.0105114
0.351	2.636248	0.0106064
0.352	2.634453	0.01070194
0.353	2.632674	0.01079801
0.354	2.630908	0.01089462
0.355	2.629157	0.01099178
0.356	2.627419	0.01108947
0.357	2.625694	0.01118772
0.358	2.623983	0.0112865
0.359	2.622285	0.01138584
0.36	2.620599	0.01148573
0.361	2.618926	0.01158616
0.362	2.617265	0.01168715
0.363	2.615617	0.0117887
0.364	2.61398	0.0118908
0.365	2.612354	0.01199345
0.366	2.61074	0.01209667
0.367	2.609138	0.01220044
0.368	2.607546	0.01230478
0.369	2.605965	0.01240968
0.37	2.604395	0.01251515
0.371	2.602835	0.01262118
0.372	2.601286	0.01272778
0.373	2.599747	0.01283495
0.374	2.598217	0.01294269
0.375	2.596698	0.013051
0.376	2.595188	0.01315989
0.377	2.593688	0.01326935
0.378	2.592197	0.01337939
0.379	2.590715	0.01349
0.38	2.589242	0.0136012
0.381	2.587778	0.01371298
0.382	2.586323	0.01382534
0.383	2.584876	0.01393829
0.384	2.583438	0.01405182
0.385	2.582008	0.01416594
0.386	2.580586	0.01428065
0.387	2.579172	0.01439595
0.388	2.577767	0.01451184
0.389	2.576369	0.01462832
0.39	2.574978	0.0147454
0.391	2.573596	0.01486308
0.392	2.572221	0.01498136
0.393	2.570853	0.01510023
0.394	2.569492	0.0152197
0.395	2.568138	0.01533978
0.396	2.566792	0.01546046
0.397	2.565452	0.01558175
0.398	2.564119	0.01570364
0.399	2.562793	0.01582615
0.4	2.561473	0.01594926
0.401	2.56016	0.01607298
0.402	2.558853	0.01619732
0.403	2.557552	0.01632227
0.404	2.556258	0.01644783
0.405	2.55497	0.01657402
0.406	2.553688	0.01670082
0.407	2.552411	0.01682824
0.408	2.551141	0.01695629
0.409	2.549876	0.01708496
0.41	2.548617	0.01721425
0.411	2.547363	0.01734417
0.412	2.546115	0.01747471
0.413	2.544872	0.01760589
0.414	2.543635	0.0177377
0.415	2.542402	0.01787014
0.416	2.541175	0.01800321
0.417	2.539954	0.01813691
0.418	2.538737	0.01827126
0.419	2.537525	0.01840624
0.42	2.536317	0.01854186
0.421	2.535115	0.01867813
0.422	2.533918	0.01881503
0.423	2.532725	0.01895258
0.424	2.531536	0.01909078
0.425	2.530352	0.01922962
0.426	2.529173	0.01936911
0.427	2.527998	0.01950925
0.428	2.526827	0.01965004
0.429	2.525661	0.01979149
0.43	2.524498	0.01993359
0.431	2.52334	0.02007634
0.432	2.522186	0.02021975
0.433	2.521036	0.02036382
0.434	2.51989	0.02050855
0.435	2.518748	0.02065395
0.436	2.51761	0.02080001
0.437	2.516475	0.02094673
0.438	2.515344	0.02109412
0.439	2.514217	0.02124217
0.44	2.513094	0.0213909
0.441	2.511974	0.02154029
0.442	2.510857	0.02169036
0.443	2.509744	0.0218411
0.444	2.508635	0.02199252
0.445	2.507528	0.02214461
0.446	2.506425	0.02229739
0.447	2.505326	0.02245084
0.448	2.504229	0.02260497
0.449	2.503136	0.02275979
0.45	2.502046	0.02291529
0.451	2.500959	0.02307147
0.452	2.499875	0.02322835
0.453	2.498794	0.02338591
0.454	2.497716	0.02354416
0.455	2.496641	0.02370311
0.456	2.495569	0.02386274
0.457	2.494499	0.02402308
0.458	2.493432	0.0241841
0.459	2.492368	0.02434583
0.46	2.491307	0.02450826
0.461	2.490249	0.02467138
0.462	2.489193	0.02483521
0.463	2.488139	0.02499974
0.464	2.487088	0.02516498
0.465	2.48604	0.02533092
0.466	2.484994	0.02549758
0.467	2.48395	0.02566494
0.468	2.482909	0.02583301
0.469	2.481871	0.0260018
0.47	2.480834	0.0261713
0.471	2.4798	0.02634152
0.472	2.478768	0.02651245
0.473	2.477738	0.02668411
0.474	2.476711	0.02685648
0.475	2.475685	0.02702958
0.476	2.474662	0.02720339
0.477	2.473641	0.02737794
0.478	2.472622	0.02755321
0.479	2.471605	0.02772921
0.48	2.47059	0.02790594
0.481	2.469576	0.0280834
0.482	2.468565	0.02826159
0.483	2.467556	0.02844052
0.484	2.466548	0.02862018
0.485	2.465543	0.02880058
0.486	2.464539	0.02898172
0.487	2.463537	0.0291636
0.488	2.462536	0.02934622
0.489	2.461538	0.02952959
0.49	2.460541	0.0297137
0.491	2.459546	0.02989855
0.492	2.458552	0.03008416
0.493	2.45756	0.03027051
0.494	2.45657	0.03045762
0.495	2.455581	0.03064548
0.496	2.454593	0.03083409
0.497	2.453608	0.03102346
0.498	2.452623	0.03121359
0.499	2.45164	0.03140447
0.5	2.450659	0.03159612
0.501	2.449679	0.03178853
0.502	2.4487	0.0319817
0.503	2.447723	0.03217564
0.504	2.446747	0.03237035
0.505	2.445772	0.03256582
0.506	2.444799	0.03276206
0.507	2.443827	0.03295908
0.508	2.442856	0.03315687
0.509	2.441887	0.03335543
0.51	2.440918	0.03355477
0.511	2.439951	0.03375489
0.512	2.438985	0.03395579
0.513	2.43802	0.03415747
0.514	2.437056	0.03435994
0.515	2.436094	0.03456318
0.516	2.435132	0.03476722
0.517	2.434171	0.03497204
0.518	2.433212	0.03517765
0.519	2.432253	0.03538405
0.52	2.431296	0.03559125
0.521	2.430339	0.03579924
0.522	2.429384	0.03600802
0.523	2.428429	0.0362176
0.524	2.427475	0.03642799
0.525	2.426523	0.03663917
0.526	2.425571	0.03685115
0.527	2.42462	0.03706394
0.528	2.423669	0.03727754
0.529	2.42272	0.03749194
0.53	2.421771	0.03770715
0.531	2.420823	0.03792317
0.532	2.419876	0.03814001
0.533	2.41893	0.03835766
0.534	2.417985	0.03857612
0.535	2.41704	0.0387954
0.536	2.416096	0.03901551
0.537	2.415152	0.03923643
0.538	2.41421	0.03945817
0.539	2.413268	0.03968074
0.54	2.412326	0.03990413
0.541	2.411385	0.04012836
0.542	2.410445	0.04035341
0.543	2.409506	0.04057929
0.544	2.408567	0.040806
0.545	2.407628	0.04103355
0.546	2.40669	0.04126194
0.547	2.405753	0.04149116
0.548	2.404816	0.04172122
0.549	2.40388	0.04195213
0.55	2.402944	0.04218387
0.551	2.402008	0.04241646
0.552	2.401073	0.0426499
0.553	2.400139	0.04288419
0.554	2.399205	0.04311932
0.555	2.398271	0.04335531
0.556	2.397338	0.04359215
0.557	2.396405	0.04382985
0.558	2.395473	0.0440684
0.559	2.394541	0.04430781
0.56	2.393609	0.04454808
0.561	2.392678	0.04478922
0.562	2.391747	0.04503122
0.563	2.390816	0.04527408
0.564	2.389886	0.04551782
0.565	2.388956	0.04576242
0.566	2.388026	0.04600789
0.567	2.387096	0.04625424
0.568	2.386167	0.04650146
0.569	2.385238	0.04674956
0.57	2.384309	0.04699854
0.571	2.38338	0.0472484
0.572	2.382452	0.04749913
0.573	2.381523	0.04775076
0.574	2.380595	0.04800327
0.575	2.379667	0.04825667
0.576	2.37874	0.04851095
0.577	2.377812	0.04876614
0.578	2.376885	0.04902221
0.579	2.375957	0.04927918
0.58	2.37503	0.04953704
0.581	2.374103	0.04979581
0.582	2.373176	0.05005548
0.583	2.372249	0.05031604
0.584	2.371322	0.05057752
0.585	2.370395	0.0508399
0.586	2.369468	0.05110319
0.587	2.368541	0.05136739
0.588	2.367615	0.05163251
0.589	2.366688	0.05189854
0.59	2.365761	0.05216548
0.591	2.364835	0.05243334
0.592	2.363908	0.05270213
0.593	2.362981	0.05297184
0.594	2.362054	0.05324247
0.595	2.361127	0.05351403
0.596	2.360201	0.05378651
0.597	2.359274	0.05405993
0.598	2.358347	0.05433428
0.599	2.357419	0.05460956
0.6	2.356492	0.05488579
0.601	2.355565	0.05516295
0.602	2.354638	0.05544105
0.603	2.35371	0.05572009
0.604	2.352782	0.05600008
0.605	2.351855	0.05628102
0.606	2.350927	0.0565629
0.607	2.349998	0.05684574
0.608	2.34907	0.05712953
0.609	2.348142	0.05741428
0.61	2.347213	0.05769998
0.611	2.346284	0.05798664
0.612	2.345355	0.05827427
0.613	2.344426	0.05856286
0.614	2.343497	0.05885242
0.615	2.342567	0.05914294
0.616	2.341637	0.05943444
0.617	2.340707	0.05972691
0.618	2.339776	0.06002035
0.619	2.338846	0.06031477
0.62	2.337915	0.06061017
0.621	2.336984	0.06090656
0.622	2.336052	0.06120392
0.623	2.33512	0.06150228
0.624	2.334188	0.06180162
0.625	2.333256	0.06210195
0.626	2.332323	0.06240328
0.627	2.33139	0.0627056
0.628	2.330457	0.06300892
0.629	2.329523	0.06331324
0.63	2.328589	0.06361857
0.631	2.327654	0.0639249
0.632	2.32672	0.06423223
0.633	2.325785	0.06454058
0.634	2.324849	0.06484994
0.635	2.323913	0.06516031
0.636	2.322977	0.0654717
0.637	2.32204	0.06578411
0.638	2.321103	0.06609755
0.639	2.320165	0.066412
0.64	2.319227	0.06672749
0.641	2.318289	0.06704401
0.642	2.31735	0.06736155
0.643	2.316411	0.06768013
0.644	2.315471	0.06799975
0.645	2.314531	0.06832041
0.646	2.31359	0.06864211
0.647	2.312649	0.06896486
0.648	2.311707	0.06928866
0.649	2.310765	0.0696135
0.65	2.309823	0.0699394
0.651	2.30888	0.07026636
0.652	2.307936	0.07059437
0.653	2.306992	0.07092345
0.654	2.306047	0.07125359
0.655	2.305102	0.07158479
0.656	2.304156	0.07191707
0.657	2.30321	0.07225042
0.658	2.302263	0.07258484
0.659	2.301316	0.07292034
0.66	2.300368	0.07325693
0.661	2.299419	0.07359459
0.662	2.29847	0.07393335
0.663	2.29752	0.07427319
0.664	2.29657	0.07461413
0.665	2.295619	0.07495616
0.666	2.294668	0.07529929
0.667	2.293716	0.07564353
0.668	2.292763	0.07598887
0.669	2.29181	0.07633531
0.67	2.290856	0.07668287
0.671	2.289901	0.07703155
0.672	2.288946	0.07738134
0.673	2.28799	0.07773225
0.674	2.287034	0.07808428
0.675	2.286076	0.07843744
0.676	2.285118	0.07879174
0.677	2.28416	0.07914716
0.678	2.283201	0.07950372
0.679	2.282241	0.07986143
0.68	2.28128	0.08022027
0.681	2.280319	0.08058027
0.682	2.279357	0.08094142
0.683	2.278394	0.08130372
0.684	2.277431	0.08166718
0.685	2.276467	0.08203179
0.686	2.275502	0.08239758
0.687	2.274536	0.08276453
0.688	2.27357	0.08313266
0.689	2.272603	0.08350196
0.69	2.271635	0.08387244
0.691	2.270666	0.0842441
0.692	2.269697	0.08461695
0.693	2.268726	0.084991
0.694	2.267756	0.08536623
0.695	2.266784	0.08574267
0.696	2.265811	0.08612031
0.697	2.264838	0.08649916
0.698	2.263864	0.08687922
0.699	2.262889	0.08726049
0.7	2.261913	0.08764299
0.701	2.260937	0.0880267
0.702	2.259959	0.08841165
0.703	2.258981	0.08879782
0.704	2.258002	0.08918524
0.705	2.257022	0.08957389
0.706	2.256041	0.08996379
0.707	2.255059	0.09035494
0.708	2.254077	0.09074735
0.709	2.253094	0.09114101
0.71	2.252109	0.09153594
0.711	2.251124	0.09193214
0.712	2.250138	0.09232961
0.713	2.249151	0.09272836
0.714	2.248163	0.09312839
0.715	2.247175	0.09352971
0.716	2.246185	0.09393233
0.717	2.245195	0.09433624
0.718	2.244203	0.09474145
0.719	2.243211	0.09514798
0.72	2.242217	0.09555582
0.721	2.241223	0.09596498
0.722	2.240228	0.09637546
0.723	2.239232	0.09678728
0.724	2.238235	0.09720043
0.725	2.237237	0.09761492
0.726	2.236238	0.09803077
0.727	2.235238	0.09844796
0.728	2.234237	0.09886652
0.729	2.233235	0.09928644
0.73	2.232232	0.09970774
0.731	2.231228	0.1001304
0.732	2.230223	0.1005545
0.733	2.229217	0.1009799
0.734	2.22821	0.1014068
0.735	2.227202	0.101835
0.736	2.226193	0.1022647
0.737	2.225182	0.1026958
0.738	2.224171	0.1031283
0.739	2.223159	0.1035622
0.74	2.222146	0.1039976
0.741	2.221132	0.1044344
0.742	2.220116	0.1048727
0.743	2.2191	0.1053124
0.744	2.218082	0.1057536
0.745	2.217064	0.1061963
0.746	2.216044	0.1066405
0.747	2.215023	0.1070862
0.748	2.214002	0.1075333
0.749	2.212979	0.107982
0.75	2.211955	0.1084322
0.751	2.210929	0.108884
0.752	2.209903	0.1093372
0.753	2.208876	0.109792
0.754	2.207847	0.1102484
0.755	2.206818	0.1107063
0.756	2.205787	0.1111658
0.757	2.204755	0.1116269
0.758	2.203722	0.1120896
0.759	2.202687	0.1125539
0.76	2.201652	0.1130198
0.761	2.200615	0.1134873
0.762	2.199578	0.1139565
0.763	2.198539	0.1144273
0.764	2.197499	0.1148997
0.765	2.196457	0.1153739
0.766	2.195415	0.1158497
0.767	2.194371	0.1163272
0.768	2.193326	0.1168064
0.769	2.19228	0.1172873
0.77	2.191233	0.11777
0.771	2.190184	0.1182544
0.772	2.189134	0.1187406
0.773	2.188084	0.1192285
0.774	2.187031	0.1197182
0.775	2.185978	0.1202097
0.776	2.184923	0.1207031
0.777	2.183867	0.1211982
0.778	2.18281	0.1216952
0.779	2.181752	0.1221941
0.78	2.180692	0.1226948
0.781	2.179631	0.1231974
0.782	2.178569	0.1237019
0.783	2.177505	0.1242084
0.784	2.17644	0.1247167
0.785	2.175374	0.1252271
0.786	2.174307	0.1257394
0.787	2.173239	0.1262537
0.788	2.172169	0.12677
0.789	2.171098	0.1272884
0.79	2.170025	0.1278088
0.791	2.168951	0.1283313
0.792	2.167876	0.1288559
0.793	2.1668	0.1293825
0.794	2.165723	0.1299114
0.795	2.164644	0.1304423
0.796	2.163564	0.1309755
0.797	2.162482	0.1315109
0.798	2.1614	0.1320485
0.799	2.160316	0.1325883
0.8	2.15923	0.1331304
0.801	2.158144	0.1336749
0.802	2.157056	0.1342216
0.803	2.155967	0.1347707
0.804	2.154876	0.1353222
0.805	2.153785	0.1358761
0.806	2.152692	0.1364324
0.807	2.151598	0.1369913
0.808	2.150502	0.1375526
0.809	2.149406	0.1381164
0.81	2.148308	0.1386828
0.811	2.147209	0.1392518
0.812	2.146109	0.1398234
0.813	2.145007	0.1403977
0.814	2.143904	0.1409746
0.815	2.142801	0.1415543
0.816	2.141696	0.1421368
0.817	2.140589	0.1427221
0.818	2.139482	0.1433102
0.819	2.138374	0.1439011
0.82	2.137264	0.144495
0.821	2.136154	0.1450919
0.822	2.135042	0.1456917
0.823	2.13393	0.1462946
0.824	2.132816	0.1469006
0.825	2.131701	0.1475096
0.826	2.130586	0.1481219
0.827	2.129469	0.1487373
0.828	2.128352	0.149356
0.829	2.127234	0.149978
0.83	2.126115	0.1506033
0.831	2.124995	0.151232
0.832	2.123875	0.1518642
0.833	2.122754	0.1524998
0.834	2.121632	0.153139
0.835	2.12051	0.1537817
0.836	2.119388	0.1544281
0.837	2.118264	0.1550781
0.838	2.117141	0.1557318
0.839	2.116017	0.1563893
0.84	2.114893	0.1570506
0.841	2.113769	0.1577158
0.842	2.112644	0.1583849
0.843	2.11152	0.1590579
0.844	2.110396	0.1597349
0.845	2.109272	0.1604159
0.846	2.108148	0.161101
0.847	2.107025	0.1617902
0.848	2.105902	0.1624836
0.849	2.10478	0.1631812
0.85	2.103658	0.1638829
0.851	2.102537	0.1645889
0.852	2.101418	0.1652991
0.853	2.100299	0.1660137
0.854	2.099182	0.1667325
0.855	2.098066	0.1674556
0.856	2.096952	0.1681831
0.857	2.095839	0.1689148
0.858	2.094728	0.1696509
0.859	2.09362	0.1703912
0.86	2.092513	0.1711358
0.861	2.091409	0.1718846
0.862	2.090308	0.1726376
0.863	2.08921	0.1733947
0.864	2.088114	0.1741559
0.865	2.087022	0.174921
0.866	2.085933	0.1756901
0.867	2.084848	0.1764629
0.868	2.083767	0.1772394
0.869	2.08269	0.1780193
0.87	2.081618	0.1788027
0.871	2.080549	0.1795893
0.872	2.079486	0.1803788
0.873	2.078428	0.1811712
0.874	2.077375	0.1819662
0.875	2.076327	0.1827634
0.876	2.075285	0.1835628
0.877	2.074249	0.1843638
0.878	2.073218	0.1851664
0.879	2.072194	0.18597
0.88	2.071177	0.1867744
0.881	2.070165	0.1875792
0.882	2.069161	0.1883839
0.883	2.068163	0.1891882
0.884	2.067172	0.1899916
0.885	2.066187	0.1907937
0.886	2.06521	0.1915939
0.887	2.064239	0.1923919
0.888	2.063275	0.193187
0.889	2.062318	0.1939788
0.89	2.061367	0.1947668
0.891	2.060422	0.1955504
0.892	2.059484	0.1963291
0.893	2.058552	0.1971025
0.894	2.057626	0.1978699
0.895	2.056704	0.1986309
0.896	2.055788	0.1993851
0.897	2.054876	0.2001319
0.898	2.053968	0.2008709
0.899	2.053064	0.2016017
0.9	2.052163	0.202324
0.901	2.051264	0.2030373
0.902	2.050367	0.2037415
0.903	2.049471	0.2044363
0.904	2.048576	0.2051214
0.905	2.04768	0.2057967
0.906	2.046784	0.2064621
0.907	2.045886	0.2071176
0.908	2.044986	0.2077632
0.909	2.044084	0.208399
0.91	2.043177	0.209025
0.911	2.042266	0.2096414
0.912	2.04135	0.2102485
0.913	2.040429	0.2108466
0.914	2.039501	0.2114359
0.915	2.038567	0.2120169
0.916	2.037625	0.2125899
0.917	2.036676	0.2131554
0.918	2.035718	0.2137138
0.919	2.034751	0.2142656
0.92	2.033775	0.2148114
0.921	2.03279	0.2153517
0.922	2.031795	0.2158871
0.923	2.03079	0.2164181
0.924	2.029775	0.2169453
0.925	2.02875	0.2174692
0.926	2.027714	0.2179904
0.927	2.026667	0.2185094
0.928	2.02561	0.2190269
0.929	2.024543	0.2195433
0.93	2.023465	0.2200592
0.931	2.022376	0.220575
0.932	2.021277	0.2210912
0.933	2.020168	0.2216083
0.934	2.019049	0.2221267
0.935	2.01792	0.2226468
0.936	2.016781	0.2231691
0.937	2.015632	0.2236938
0.938	2.014475	0.2242213
0.939	2.013308	0.2247519
0.94	2.012132	0.225286
0.941	2.010948	0.2258237
0.942	2.009756	0.2263654
0.943	2.008555	0.2269112
0.944	2.007347	0.2274613
0.945	2.006131	0.228016
0.946	2.004908	0.2285753
0.947	2.003677	0.2291395
0.948	2.00244	0.2297086
0.949	2.001196	0.2302828
0.95	1.999946	0.2308622
0.951	1.99869	0.2314467
0.952	1.997427	0.2320366
0.953	1.99616	0.2326318
0.954	1.994886	0.2332324
0.955	1.993608	0.2338384
0.956	1.992324	0.2344499
0.957	1.991036	0.2350668
0.958	1.989742	0.2356892
0.959	1.988445	0.236317
0.96	1.987143	0.2369503
0.961	1.985837	0.2375891
0.962	1.984526	0.2382332
0.963	1.983212	0.2388828
0.964	1.981894	0.2395377
0.965	1.980573	0.2401979
0.966	1.979248	0.2408635
0.967	1.97792	0.2415343
0.968	1.976588	0.2422104
0.969	1.975254	0.2428916
0.97	1.973916	0.243578
0.971	1.972576	0.2442695
0.972	1.971232	0.244966
0.973	1.969886	0.2456675
0.974	1.968537	0.246374
0.975	1.967186	0.2470854
0.976	1.965832	0.2478017
0.977	1.964475	0.2485228
0.978	1.963116	0.2492487
0.979	1.961755	0.2499793
0.98	1.960391	0.2507146
0.981	1.959026	0.2514546
0.982	1.957658	0.2521991
0.983	1.956288	0.2529482
0.984	1.954915	0.2537018
0.985	1.953541	0.2544599
0.986	1.952165	0.2552224
0.987	1.950787	0.2559893
0.988	1.949406	0.2567605
0.989	1.948024	0.2575361
0.99	1.94664	0.2583159
0.991	1.945254	0.2591
0.992	1.943866	0.2598883
0.993	1.942476	0.2606807
0.994	1.941085	0.2614773
0.995	1.939691	0.262278
0.996	1.938296	0.2630828
0.997	1.936899	0.2638916
0.998	1.935501	0.2647044
0.999	1.9341	0.2655212
1.0	1.932698	0.266342
1.0025	1.929185	0.2684112
1.005	1.925661	0.2705046
1.0075	1.922127	0.272622
1.01	1.918582	0.2747629
1.0125	1.915026	0.2769272
1.015	1.91146	0.2791147
1.0175	1.907883	0.2813251
1.02	1.904296	0.2835582
1.0225	1.900698	0.285814
1.025	1.89709	0.2880923
1.0275	1.89347	0.290393
1.03	1.88984	0.292716
1.0325	1.886199	0.2950614
1.035	1.882547	0.2974289
1.0375	1.878883	0.2998188
1.04	1.875209	0.3022309
1.0425	1.871523	0.3046652
1.045	1.867826	0.3071219
1.0475	1.864118	0.309601
1.05	1.860398	0.3121025
1.0525	1.856666	0.3146265
1.055	1.852923	0.3171732
1.0575	1.849168	0.3197425
1.06	1.845401	0.3223347
1.0625	1.841622	0.3249499
1.065	1.83783	0.3275881
1.0675	1.834027	0.3302497
1.07	1.830211	0.3329346
1.0725	1.826383	0.3356431
1.075	1.822543	0.3383753
1.0775	1.81869	0.3411315
1.08	1.814825	0.3439118
1.0825	1.810946	0.3467164
1.085	1.807055	0.3495455
1.0875	1.803152	0.3523994
1.09	1.799235	0.3552783
1.0925	1.795306	0.3581823
1.095	1.791363	0.3611118
1.0975	1.787408	0.3640669
1.1	1.783439	0.367048
1.1025	1.779457	0.3700553
1.105	1.775462	0.373089
1.1075	1.771454	0.3761494
1.11	1.767432	0.3792368
1.1125	1.763397	0.3823515
1.115	1.759349	0.3854938
1.1175	1.755287	0.3886639
1.12	1.751212	0.3918622
1.1225	1.747124	0.3950889
1.125	1.743022	0.3983444
1.1275	1.738906	0.401629
1.13	1.734777	0.404943
1.1325	1.730635	0.4082868
1.135	1.726479	0.4116607
1.1375	1.722309	0.415065
1.14	1.718126	0.4185
1.1425	1.713929	0.4219662
1.145	1.709719	0.4254639
1.1475	1.705496	0.4289935
1.15	1.701259	0.4325552
1.1525	1.697009	0.4361496
1.155	1.692745	0.439777
1.1575	1.688468	0.4434377
1.16	1.684178	0.4471322
1.1625	1.679874	0.4508609
1.165	1.675558	0.4546241
1.1675	1.671228	0.4584223
1.17	1.666885	0.4622559
1.1725	1.662529	0.4661254
1.175	1.658161	0.470031
1.1775	1.653779	0.4739733
1.18	1.649385	0.4779528
1.1825	1.644979	0.4819698
1.185	1.64056	0.4860248
1.1875	1.636129	0.4901182
1.19	1.631685	0.4942505
1.1925	1.62723	0.4984222
1.195	1.622763	0.5026338
1.1975	1.618284	0.5068856
1.2	1.613793	0.5111782
1.2025	1.609291	0.5155121
1.205	1.604778	0.5198877
1.2075	1.600254	0.5243055
1.21	1.595719	0.528766
1.2125	1.591174	0.5332697
1.215	1.586618	0.5378172
1.2175	1.582052	0.5424088
1.22	1.577476	0.5470452
1.2225	1.572891	0.5517268
1.225	1.568297	0.5564541
1.2275	1.563693	0.5612276
1.23	1.559081	0.5660479
1.2325	1.55446	0.5709155
1.235	1.549832	0.5758309
1.2375	1.545195	0.5807945
1.24	1.540552	0.585807
1.2425	1.535901	0.5908688
1.245	1.531243	0.5959805
1.2475	1.52658	0.6011426
1.25	1.52191	0.6063555
1.2525	1.517235	0.6116199
1.255	1.512555	0.6169362
1.2575	1.507871	0.622305
1.26	1.503182	0.6277268
1.2625	1.49849	0.6332019
1.265	1.493795	0.6387312
1.2675	1.489097	0.6443148
1.27	1.484397	0.6499535
1.2725	1.479696	0.6556476
1.275	1.474994	0.6613977
1.2775	1.470291	0.6672042
1.28	1.465588	0.6730677
1.2825	1.460887	0.6789885
1.285	1.456186	0.6849672
1.2875	1.451488	0.6910042
1.29	1.446792	0.6971
1.2925	1.4421	0.7032549
1.295	1.437412	0.7094694
1.2975	1.432728	0.715744
1.3	1.42805	0.722079
1.3025	1.423378	0.7284748
1.305	1.418713	0.7349318
1.3075	1.414055	0.7414503
1.31	1.409406	0.7480307
1.3125	1.404766	0.7546734
1.315	1.400136	0.7613787
1.3175	1.395517	0.7681468
1.32	1.39091	0.7749781
1.3225	1.386314	0.7818728
1.325	1.381732	0.7888312
1.3275	1.377165	0.7958535
1.33	1.372612	0.80294
1.3325	1.368075	0.8100908
1.335	1.363554	0.8173061
1.3375	1.359051	0.8245861
1.34	1.354567	0.8319309
1.3425	1.350102	0.8393407
1.345	1.345657	0.8468155
1.3475	1.341234	0.8543553
1.35	1.336832	0.8619604
1.3525	1.332453	0.8696306
1.355	1.328099	0.8773661
1.3575	1.323769	0.8851667
1.36	1.319464	0.8930325
1.3625	1.315187	0.9009634
1.365	1.310937	0.9089593
1.3675	1.306715	0.9170202
1.37	1.302523	0.9251458
1.3725	1.29836	0.9333361
1.375	1.294229	0.9415909
1.3775	1.29013	0.94991
1.38	1.286064	0.9582931
1.3825	1.282032	0.9667401
1.385	1.278034	0.9752508
1.3875	1.274072	0.9838247
1.39	1.270146	0.9924617
1.3925	1.266257	1.001161
1.395	1.262406	1.009924
1.3975	1.258593	1.018748
1.4	1.25482	1.027634
1.4025	1.251088	1.036581
1.405	1.247396	1.045589
1.4075	1.243747	1.054658
1.41	1.24014	1.063787
1.4125	1.236576	1.072975
1.415	1.233055	1.082223
1.4175	1.22958	1.09153
1.42	1.226149	1.100894
1.4225	1.222765	1.110317
1.425	1.219427	1.119797
1.4275	1.216136	1.129334
1.43	1.212892	1.138927
1.4325	1.209697	1.148576
1.435	1.20655	1.158281
1.4375	1.203452	1.16804
1.44	1.200405	1.177854
1.4425	1.197407	1.187721
1.445	1.19446	1.197642
1.4475	1.191564	1.207616
1.45	1.188719	1.217642
1.4525	1.185926	1.227719
1.455	1.183186	1.237848
1.4575	1.180498	1.248028
1.46	1.177863	1.258258
1.4625	1.175281	1.268538
1.465	1.172753	1.278868
1.4675	1.170278	1.289246
1.47	1.167858	1.299672
1.4725	1.165492	1.310147
1.475	1.163181	1.320669
1.4775	1.160925	1.331238
1.48	1.158723	1.341854
1.4825	1.156577	1.352515
1.485	1.154487	1.363223
1.4875	1.152452	1.373976
1.49	1.150473	1.384774
1.4925	1.14855	1.395617
1.495	1.146683	1.406504
1.4975	1.144872	1.417436
1.5	1.143118	1.42841
1.5025	1.14142	1.439429
1.505	1.139779	1.45049
1.5075	1.138194	1.461594
1.51	1.136667	1.47274
1.5125	1.135196	1.483929
1.515	1.133783	1.49516
1.5175	1.132427	1.506433
1.52	1.131128	1.517747
1.5225	1.129886	1.529102
1.525	1.128702	1.540499
1.5275	1.127576	1.551937
1.53	1.126507	1.563416
1.5325	1.125495	1.574936
1.535	1.124542	1.586497
1.5375	1.123647	1.598098
1.54	1.122809	1.609739
1.5425	1.12203	1.621422
1.545	1.121309	1.633144
1.5475	1.120646	1.644907
1.55	1.120041	1.656711
1.5525	1.119496	1.668555
1.555	1.119009	1.680439
1.5575	1.11858	1.692363
1.56	1.118211	1.704329
1.5625	1.117901	1.716334
1.565	1.11765	1.728381
1.5675	1.117458	1.740468
1.57	1.117327	1.752595
1.5725	1.117255	1.764764
1.575	1.117242	1.776974
1.5775	1.117291	1.789225
1.58	1.117399	1.801517
1.5825	1.117568	1.813851
1.585	1.117798	1.826226
1.5875	1.118089	1.838643
1.59	1.118442	1.851103
1.5925	1.118856	1.863604
1.595	1.119332	1.876148
1.5975	1.119871	1.888735
1.6	1.120472	1.901365
1.6025	1.121136	1.914039
1.605	1.121863	1.926755
1.6075	1.122654	1.939516
1.61	1.123509	1.952321
1.6125	1.124428	1.96517
1.615	1.125412	1.978064
1.6175	1.126462	1.991002
1.62	1.127577	2.003987
1.6225	1.128758	2.017017
1.625	1.130006	2.030093
1.6275	1.131322	2.043216
1.63	1.132705	2.056385
1.6325	1.134156	2.069602
1.635	1.135677	2.082866
1.6375	1.137266	2.096178
1.64	1.138926	2.109539
1.6425	1.140657	2.122949
1.645	1.142459	2.136407
1.6475	1.144333	2.149916
1.65	1.14628	2.163474
1.6525	1.1483	2.177083
1.655	1.150395	2.190743
1.6575	1.152565	2.204454
1.66	1.15481	2.218217
1.6625	1.157133	2.232033
1.665	1.159533	2.245901
1.6675	1.162011	2.259822
1.67	1.164569	2.273797
1.6725	1.167207	2.287827
1.675	1.169926	2.301911
1.6775	1.172728	2.31605
1.68	1.175613	2.330245
1.6825	1.178582	2.344496
1.685	1.181637	2.358804
1.6875	1.184779	2.373168
1.69	1.188008	2.387591

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: —

NbSe₂ (Niobium diselenide): all datasets

Multilayer flakes

About NbSe2 (Niobium diselenide)

Niobium diselenide (NbSe₂) is a layered transition metal dichalcogenide with intriguing electronic and optical properties. Due to its layered structure, NbSe₂ can be exfoliated into ultra-thin sheets, similarly to graphene, which are of interest in nanoscale devices. One of the notable properties of NbSe₂ is its superconductivity at low temperatures. Additionally, research has shown that this material possesses charge-density wave phases, making it a subject of interest for understanding correlated electron systems. In the realm of optics, the material's nonlinear optical properties are being explored for potential applications in photonics and optoelectronics.

Niobium diselenide - Wikipedia

More about NbSe2 (Niobium diselenide) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/NbSe2/nk/Munkhbat-e.yml
ID: ds_1a871a074f80
API: /v1/datasets/ds_1a871a074f80

Plot