Optical constants

Refractive index of VO2 (Vanadium dioxide)

Oguntoye et al. 2023: n,k 0.21–2.5 µm; 55 °C

Data: tabulated nk
Range: 0.21–2.5 µm
Points: 1041
Temperature: 328 K
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 2.30161
Extinction coefficient k: 0.340594

Permittivity ε₁: 5.18142
Permittivity ε₂: 1.56783

Absorption coefficient α: 72839.2 cm⁻¹
Penetration depth δ = λ/(2πk): 274.577 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.81 µm⁻¹

Group index n_g: 2.77757
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

# VO2 (Vanadium dioxide): Oguntoye et al. 2023: n,k 0.21–2.5 µm; 55 °C
vo2 = ls.fetch_refractiveindex("main", "VO2", "Oguntoye-55C", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(vo2.range_nm)  # (210, 2500) nm
eps = vo2.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_205d7412d78a/lightsmith"
vo2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(vo2.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (vo2/oguntoye-2023-55c).

# ... load vo2 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=vo2)],
    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

~209 nm-thick VO₂ film on SiO₂ substrate. 55 °C.

Conditions

temperature: 328 K
film thickness: 209e-9
substrate: SiO2

References

I. O. Oguntoye, S. Padmanabha, M. Hinkle, T. Koutsougeras, A. J. Ollanik, M. D. Escarra. Continuously tunable optical modulation using vanadium dioxide Huygens metasurfaces. ACS Appl. Mater. Interfaces 15, 41141–41150 (2023) (Numerical data kindly provided by Isaac Oguntoye)

doi:10.1021/acsami.3c08493 Continuously Tunable Optical Modulation Using Vanadium Dioxide Huygens Metasurfaces, ACS Applied Materials & Interfaces (2023)

Cite

Isaac O. Oguntoye et al.. Continuously Tunable Optical Modulation Using Vanadium Dioxide Huygens Metasurfaces. ACS Applied Materials & Interfaces, 15, 41141-41150 (2023), doi:10.1021/acsami.3c08493; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

1041 rows as published

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

VO2 (Vanadium dioxide), Oguntoye et al. 2023: n,k 0.21–2.5 µm; 55 °C: n and k versus wavelength
λ (µm)	n	k
0.21	1.80602	0.88171
0.211	1.79913	0.87556
0.212	1.79309	0.8712
0.213	1.78807	0.86825
0.214	1.78414	0.86633
0.215	1.78132	0.86515
0.216	1.77959	0.86442
0.217	1.77886	0.86391
0.218	1.77905	0.8634
0.219	1.78001	0.86269
0.22	1.7816	0.86163
0.221	1.78361	0.86008
0.222	1.78578	0.858
0.223	1.78786	0.85549
0.224	1.78977	0.85268
0.225	1.79143	0.84967
0.226	1.79283	0.84655
0.227	1.79394	0.8434
0.228	1.79478	0.84028
0.229	1.79534	0.83725
0.23	1.79565	0.83436
0.231	1.79573	0.83166
0.232	1.79561	0.82918
0.233	1.79533	0.82696
0.234	1.79493	0.82502
0.235	1.79449	0.82336
0.236	1.79405	0.82195
0.237	1.79362	0.82075
0.238	1.79322	0.81975
0.239	1.79285	0.81893
0.24	1.79252	0.81826
0.241	1.79222	0.81773
0.242	1.79196	0.81733
0.243	1.79173	0.81705
0.244	1.79153	0.81686
0.245	1.79136	0.81677
0.246	1.79119	0.81676
0.247	1.79103	0.81683
0.248	1.79085	0.81697
0.249	1.79064	0.81718
0.25	1.79038	0.8175
0.251	1.79008	0.81792
0.252	1.78973	0.81846
0.253	1.78934	0.81915
0.254	1.78892	0.81997
0.255	1.78847	0.82095
0.256	1.78801	0.8221
0.257	1.78753	0.82341
0.258	1.78705	0.82489
0.259	1.78659	0.82656
0.26	1.78616	0.82841
0.261	1.78576	0.83044
0.262	1.78541	0.83266
0.263	1.78512	0.83506
0.264	1.78492	0.83765
0.265	1.78482	0.84042
0.266	1.78484	0.84335
0.267	1.78498	0.84643
0.268	1.78526	0.84965
0.269	1.78566	0.85299
0.27	1.78621	0.85645
0.271	1.78689	0.86002
0.272	1.78772	0.86369
0.273	1.78869	0.86745
0.274	1.7898	0.87129
0.275	1.79106	0.8752
0.276	1.79247	0.87917
0.277	1.79402	0.88321
0.278	1.79571	0.8873
0.279	1.79754	0.89143
0.28	1.79952	0.89561
0.281	1.80164	0.89982
0.282	1.80389	0.90405
0.283	1.80627	0.90832
0.284	1.80879	0.91261
0.285	1.81144	0.91693
0.286	1.81422	0.92127
0.287	1.81713	0.92562
0.288	1.82018	0.93
0.289	1.82336	0.93439
0.29	1.82667	0.93879
0.291	1.83012	0.94321
0.292	1.83371	0.94763
0.293	1.83744	0.95205
0.294	1.8413	0.95648
0.295	1.84531	0.96091
0.296	1.84947	0.96533
0.297	1.85377	0.96974
0.298	1.85822	0.97415
0.299	1.86283	0.97854
0.3	1.86759	0.98291
0.301	1.87252	0.98726
0.302	1.87761	0.99158
0.303	1.88288	0.99586
0.304	1.88834	1.00009
0.305	1.89398	1.00426
0.306	1.89981	1.00833
0.307	1.90581	1.01232
0.308	1.91198	1.01619
0.309	1.91831	1.01994
0.31	1.9248	1.02356
0.311	1.93143	1.02705
0.312	1.9382	1.03039
0.313	1.9451	1.03359
0.314	1.95212	1.03662
0.315	1.95926	1.0395
0.316	1.96649	1.0422
0.317	1.97382	1.04474
0.318	1.98123	1.04711
0.319	1.98872	1.0493
0.32	1.99627	1.05131
0.321	2.00387	1.05314
0.322	2.01153	1.0548
0.323	2.01921	1.05627
0.324	2.02693	1.05756
0.325	2.03466	1.05867
0.326	2.04239	1.05961
0.327	2.05012	1.06036
0.328	2.05782	1.06096
0.329	2.0655	1.06139
0.33	2.07314	1.06168
0.331	2.08075	1.06182
0.332	2.08832	1.06184
0.333	2.09585	1.06172
0.334	2.10334	1.06149
0.335	2.11079	1.06113
0.336	2.1182	1.06067
0.337	2.12556	1.0601
0.338	2.13287	1.05943
0.339	2.14015	1.05867
0.34	2.14738	1.05781
0.341	2.15456	1.05686
0.342	2.1617	1.05582
0.343	2.16881	1.0547
0.344	2.17587	1.05351
0.345	2.18289	1.05223
0.346	2.18987	1.05089
0.347	2.19682	1.04947
0.348	2.20373	1.04798
0.349	2.21061	1.04643
0.35	2.21746	1.04481
0.351	2.22428	1.04313
0.352	2.23108	1.04138
0.353	2.23786	1.03958
0.354	2.24462	1.03771
0.355	2.25137	1.03579
0.356	2.25811	1.03379
0.357	2.26485	1.03172
0.358	2.27159	1.02958
0.359	2.27832	1.02735
0.36	2.28505	1.02504
0.361	2.29177	1.02263
0.362	2.29848	1.02014
0.363	2.30517	1.01754
0.364	2.31186	1.01485
0.365	2.31852	1.01206
0.366	2.32516	1.00916
0.367	2.33177	1.00616
0.368	2.33836	1.00305
0.369	2.34492	0.99984
0.37	2.35144	0.99651
0.371	2.35792	0.99308
0.372	2.36437	0.98953
0.373	2.37076	0.98588
0.374	2.37711	0.98211
0.375	2.38341	0.97823
0.376	2.38964	0.97423
0.377	2.39582	0.97012
0.378	2.40193	0.9659
0.379	2.40797	0.96157
0.38	2.41393	0.95712
0.381	2.41982	0.95256
0.382	2.42562	0.94789
0.383	2.43134	0.9431
0.384	2.43696	0.9382
0.385	2.44248	0.9332
0.386	2.44789	0.92808
0.387	2.45318	0.92286
0.388	2.45836	0.91753
0.389	2.46339	0.91211
0.39	2.46828	0.9066
0.391	2.47303	0.90101
0.392	2.47764	0.89536
0.393	2.48209	0.88965
0.394	2.4864	0.88389
0.395	2.49056	0.87808
0.396	2.49457	0.87224
0.397	2.49844	0.86637
0.398	2.50216	0.86047
0.399	2.50574	0.85456
0.4	2.50917	0.84863
0.401	2.51247	0.8427
0.402	2.51563	0.83676
0.403	2.51865	0.83082
0.404	2.52155	0.82489
0.405	2.5243	0.81897
0.406	2.52694	0.81307
0.407	2.52944	0.80719
0.408	2.53182	0.80133
0.409	2.53408	0.79549
0.41	2.53623	0.78969
0.411	2.53826	0.78392
0.412	2.54018	0.77818
0.413	2.54198	0.77249
0.414	2.54369	0.76683
0.415	2.54529	0.76123
0.416	2.54679	0.75567
0.417	2.5482	0.75016
0.418	2.54951	0.7447
0.419	2.55074	0.7393
0.42	2.55188	0.73396
0.421	2.55294	0.72867
0.422	2.55392	0.72345
0.423	2.55483	0.71829
0.424	2.55567	0.7132
0.425	2.55645	0.70817
0.426	2.55717	0.70321
0.427	2.55784	0.69832
0.428	2.55847	0.69349
0.429	2.55905	0.68874
0.43	2.55961	0.68405
0.431	2.56013	0.67942
0.432	2.56063	0.67484
0.433	2.56111	0.67032
0.434	2.56157	0.66585
0.435	2.56202	0.66141
0.436	2.56244	0.65703
0.437	2.56285	0.65268
0.438	2.56324	0.64837
0.439	2.56362	0.64409
0.44	2.56399	0.63984
0.441	2.56435	0.63562
0.442	2.56469	0.63143
0.443	2.56502	0.62727
0.444	2.56534	0.62312
0.445	2.56564	0.619
0.446	2.56594	0.61489
0.447	2.56622	0.6108
0.448	2.56649	0.60673
0.449	2.56674	0.60267
0.45	2.56699	0.59861
0.451	2.56721	0.59457
0.452	2.56743	0.59054
0.453	2.56763	0.58651
0.454	2.56782	0.58248
0.455	2.56798	0.57846
0.456	2.56814	0.57444
0.457	2.56827	0.57042
0.458	2.56838	0.5664
0.459	2.56848	0.56238
0.46	2.56855	0.55835
0.461	2.5686	0.55432
0.462	2.56863	0.55029
0.463	2.56863	0.54624
0.464	2.56861	0.54219
0.465	2.56856	0.53813
0.466	2.56848	0.53406
0.467	2.56837	0.52999
0.468	2.56823	0.52589
0.469	2.56806	0.52179
0.47	2.56785	0.51767
0.471	2.5676	0.51354
0.472	2.56731	0.5094
0.473	2.56698	0.50524
0.474	2.5666	0.50106
0.475	2.56618	0.49687
0.476	2.5657	0.49266
0.477	2.56517	0.48844
0.478	2.56457	0.4842
0.479	2.56391	0.47994
0.48	2.56318	0.47568
0.481	2.56238	0.47141
0.482	2.56151	0.46715
0.483	2.56056	0.46288
0.484	2.55954	0.45863
0.485	2.55844	0.45438
0.486	2.55726	0.45014
0.487	2.55601	0.44592
0.488	2.55469	0.44172
0.489	2.55328	0.43755
0.49	2.5518	0.43339
0.491	2.55025	0.42927
0.492	2.54862	0.42517
0.493	2.54692	0.42111
0.494	2.54514	0.41708
0.495	2.54329	0.41309
0.496	2.54137	0.40913
0.497	2.53937	0.40522
0.498	2.53731	0.40136
0.499	2.53517	0.39754
0.5	2.53297	0.39376
0.501	2.5307	0.39004
0.502	2.52837	0.38637
0.503	2.52597	0.38276
0.504	2.5235	0.3792
0.505	2.52098	0.3757
0.506	2.51839	0.37225
0.507	2.51574	0.36887
0.508	2.51304	0.36556
0.509	2.51027	0.36231
0.51	2.50746	0.35912
0.511	2.50458	0.356
0.512	2.50166	0.35296
0.513	2.49868	0.34998
0.514	2.49566	0.34708
0.515	2.49259	0.34425
0.516	2.48947	0.3415
0.517	2.48631	0.33883
0.518	2.48311	0.33623
0.519	2.47987	0.33371
0.52	2.47659	0.33128
0.521	2.47327	0.32893
0.522	2.46992	0.32667
0.523	2.46654	0.32448
0.524	2.46313	0.32239
0.525	2.45969	0.32039
0.526	2.45623	0.31847
0.527	2.45274	0.31664
0.528	2.44923	0.31491
0.529	2.44571	0.31327
0.53	2.44217	0.31172
0.531	2.43862	0.31027
0.532	2.43505	0.30891
0.533	2.43149	0.30765
0.534	2.42791	0.30649
0.535	2.42434	0.30542
0.536	2.42077	0.30446
0.537	2.41721	0.30359
0.538	2.41366	0.30283
0.539	2.41013	0.30217
0.54	2.40661	0.30161
0.541	2.40313	0.30115
0.542	2.39968	0.30078
0.543	2.39626	0.30051
0.544	2.39289	0.30033
0.545	2.38956	0.30024
0.546	2.38627	0.30023
0.547	2.38303	0.3003
0.548	2.37985	0.30044
0.549	2.37671	0.30067
0.55	2.37362	0.30096
0.551	2.37059	0.30132
0.552	2.36762	0.30175
0.553	2.3647	0.30224
0.554	2.36184	0.3028
0.555	2.35904	0.30341
0.556	2.3563	0.30407
0.557	2.35362	0.30479
0.558	2.351	0.30556
0.559	2.34844	0.30638
0.56	2.34595	0.30724
0.561	2.34351	0.30815
0.562	2.34114	0.30909
0.563	2.33884	0.31008
0.564	2.33659	0.3111
0.565	2.33441	0.31216
0.566	2.3323	0.31324
0.567	2.33024	0.31436
0.568	2.32825	0.3155
0.569	2.32633	0.31667
0.57	2.32446	0.31786
0.571	2.32266	0.31907
0.572	2.32093	0.32031
0.573	2.31925	0.32155
0.574	2.31764	0.32282
0.575	2.31609	0.32409
0.576	2.3146	0.32538
0.577	2.31317	0.32668
0.578	2.3118	0.32799
0.579	2.31049	0.3293
0.58	2.30924	0.33062
0.581	2.30805	0.33194
0.582	2.30692	0.33326
0.583	2.30584	0.33458
0.584	2.30482	0.33589
0.585	2.30386	0.33721
0.586	2.30295	0.33852
0.587	2.3021	0.33982
0.588	2.30129	0.34111
0.589	2.30055	0.3424
0.59	2.29985	0.34367
0.591	2.2992	0.34493
0.592	2.2986	0.34618
0.593	2.29806	0.34742
0.594	2.29756	0.34864
0.595	2.2971	0.34984
0.596	2.29669	0.35102
0.597	2.29633	0.35218
0.598	2.29601	0.35333
0.599	2.29573	0.35445
0.6	2.2955	0.35555
0.601	2.2953	0.35662
0.602	2.29514	0.35767
0.603	2.29502	0.3587
0.604	2.29494	0.3597
0.605	2.2949	0.36067
0.606	2.29488	0.36161
0.607	2.2949	0.36253
0.608	2.29496	0.36341
0.609	2.29504	0.36427
0.61	2.29515	0.36509
0.611	2.29529	0.36588
0.612	2.29546	0.36664
0.613	2.29565	0.36737
0.614	2.29586	0.36806
0.615	2.2961	0.36872
0.616	2.29635	0.36934
0.617	2.29663	0.36993
0.618	2.29692	0.37048
0.619	2.29723	0.37099
0.62	2.29755	0.37147
0.621	2.29789	0.37191
0.622	2.29823	0.37232
0.623	2.29858	0.37268
0.624	2.29893	0.37302
0.625	2.29928	0.37332
0.626	2.29964	0.37359
0.627	2.3	0.37382
0.628	2.30036	0.37403
0.629	2.30072	0.37421
0.63	2.30108	0.37435
0.631	2.30143	0.37447
0.632	2.30178	0.37456
0.633	2.30213	0.37462
0.634	2.30248	0.37466
0.635	2.30281	0.37467
0.636	2.30315	0.37466
0.637	2.30347	0.37463
0.638	2.30379	0.37457
0.639	2.30411	0.37448
0.64	2.30441	0.37438
0.641	2.30471	0.37426
0.642	2.305	0.37411
0.643	2.30528	0.37395
0.644	2.30555	0.37376
0.645	2.30581	0.37356
0.646	2.30607	0.37334
0.647	2.30631	0.3731
0.648	2.30654	0.37284
0.649	2.30676	0.37257
0.65	2.30698	0.37228
0.651	2.30718	0.37198
0.652	2.30737	0.37166
0.653	2.30755	0.37132
0.654	2.30772	0.37098
0.655	2.30787	0.37062
0.656	2.30802	0.37024
0.657	2.30815	0.36986
0.658	2.30827	0.36946
0.659	2.30838	0.36905
0.66	2.30848	0.36863
0.661	2.30856	0.3682
0.662	2.30864	0.36775
0.663	2.3087	0.3673
0.664	2.30875	0.36684
0.665	2.30878	0.36637
0.666	2.30881	0.36589
0.667	2.30882	0.3654
0.668	2.30882	0.36491
0.669	2.30881	0.36441
0.67	2.30878	0.3639
0.671	2.30874	0.36338
0.672	2.30869	0.36286
0.673	2.30862	0.36233
0.674	2.30855	0.36179
0.675	2.30846	0.36125
0.676	2.30836	0.3607
0.677	2.30824	0.36015
0.678	2.30812	0.3596
0.679	2.30798	0.35904
0.68	2.30782	0.35847
0.681	2.30766	0.35791
0.682	2.30748	0.35733
0.683	2.30729	0.35676
0.684	2.30709	0.35618
0.685	2.30688	0.3556
0.686	2.30665	0.35502
0.687	2.30641	0.35444
0.688	2.30616	0.35385
0.689	2.3059	0.35326
0.69	2.30562	0.35268
0.691	2.30533	0.35209
0.692	2.30503	0.3515
0.693	2.30472	0.3509
0.694	2.3044	0.35031
0.695	2.30406	0.34972
0.696	2.30372	0.34913
0.697	2.30336	0.34854
0.698	2.30299	0.34795
0.699	2.30261	0.34736
0.7	2.30221	0.34677
0.701	2.30181	0.34618
0.702	2.30139	0.3456
0.703	2.30097	0.34501
0.704	2.30053	0.34443
0.705	2.30008	0.34385
0.706	2.29962	0.34327
0.707	2.29915	0.34269
0.708	2.29867	0.34212
0.709	2.29818	0.34154
0.71	2.29767	0.34098
0.711	2.29716	0.34041
0.712	2.29664	0.33985
0.713	2.29611	0.33929
0.714	2.29556	0.33873
0.715	2.29501	0.33818
0.716	2.29444	0.33763
0.717	2.29387	0.33708
0.718	2.29329	0.33654
0.719	2.29269	0.33601
0.72	2.29209	0.33547
0.721	2.29148	0.33495
0.722	2.29086	0.33442
0.723	2.29023	0.3339
0.724	2.28959	0.33339
0.725	2.28894	0.33288
0.726	2.28829	0.33238
0.727	2.28762	0.33188
0.728	2.28695	0.33139
0.729	2.28626	0.3309
0.73	2.28557	0.33042
0.731	2.28487	0.32994
0.732	2.28417	0.32947
0.733	2.28345	0.329
0.734	2.28273	0.32854
0.735	2.282	0.32809
0.736	2.28127	0.32764
0.737	2.28052	0.3272
0.738	2.27977	0.32676
0.739	2.27901	0.32633
0.74	2.27825	0.32591
0.741	2.27748	0.32549
0.742	2.2767	0.32508
0.743	2.27591	0.32468
0.744	2.27512	0.32428
0.745	2.27432	0.32388
0.746	2.27352	0.3235
0.747	2.27271	0.32312
0.748	2.27189	0.32274
0.749	2.27107	0.32237
0.75	2.27024	0.32201
0.751	2.2694	0.32165
0.752	2.26856	0.32131
0.753	2.26772	0.32096
0.754	2.26687	0.32063
0.755	2.26601	0.3203
0.756	2.26514	0.31997
0.757	2.26427	0.31966
0.758	2.2634	0.31935
0.759	2.26252	0.31904
0.76	2.26164	0.31875
0.761	2.26075	0.31846
0.762	2.25985	0.31817
0.763	2.25895	0.3179
0.764	2.25805	0.31763
0.765	2.25714	0.31736
0.766	2.25622	0.31711
0.767	2.2553	0.31686
0.768	2.25438	0.31661
0.769	2.25345	0.31638
0.77	2.25251	0.31615
0.771	2.25158	0.31592
0.772	2.25063	0.31571
0.773	2.24969	0.3155
0.774	2.24874	0.3153
0.775	2.24778	0.3151
0.776	2.24682	0.31491
0.777	2.24586	0.31473
0.778	2.24489	0.31456
0.779	2.24392	0.31439
0.78	2.24294	0.31423
0.781	2.24196	0.31408
0.782	2.24098	0.31393
0.783	2.23999	0.31379
0.784	2.239	0.31366
0.785	2.23801	0.31354
0.786	2.23701	0.31342
0.787	2.23601	0.31331
0.788	2.235	0.3132
0.789	2.23399	0.31311
0.79	2.23298	0.31302
0.791	2.23197	0.31294
0.792	2.23095	0.31286
0.793	2.22993	0.31279
0.794	2.2289	0.31273
0.795	2.22788	0.31268
0.796	2.22685	0.31263
0.797	2.22581	0.31259
0.798	2.22478	0.31256
0.799	2.22374	0.31254
0.8	2.22269	0.31252
0.801	2.22165	0.31251
0.802	2.2206	0.3125
0.803	2.21955	0.31251
0.804	2.2185	0.31252
0.805	2.21744	0.31254
0.806	2.21639	0.31256
0.807	2.21533	0.3126
0.808	2.21426	0.31264
0.809	2.2132	0.31269
0.81	2.21213	0.31274
0.811	2.21106	0.3128
0.812	2.20999	0.31287
0.813	2.20892	0.31295
0.814	2.20784	0.31303
0.815	2.20677	0.31312
0.816	2.20569	0.31322
0.817	2.2046	0.31333
0.818	2.20352	0.31344
0.819	2.20244	0.31356
0.82	2.20135	0.31369
0.821	2.20026	0.31383
0.822	2.19917	0.31397
0.823	2.19808	0.31412
0.824	2.19698	0.31428
0.825	2.19589	0.31444
0.826	2.19479	0.31461
0.827	2.19369	0.31479
0.828	2.19259	0.31498
0.829	2.19149	0.31517
0.83	2.19039	0.31537
0.831	2.18929	0.31558
0.832	2.18818	0.3158
0.833	2.18708	0.31602
0.834	2.18597	0.31625
0.835	2.18486	0.31649
0.836	2.18375	0.31673
0.837	2.18264	0.31699
0.838	2.18153	0.31725
0.839	2.18042	0.31751
0.84	2.1793	0.31779
0.841	2.17819	0.31807
0.842	2.17708	0.31836
0.843	2.17596	0.31865
0.844	2.17484	0.31896
0.845	2.17373	0.31927
0.846	2.17261	0.31958
0.847	2.17149	0.31991
0.848	2.17037	0.32024
0.849	2.16925	0.32058
0.85	2.16813	0.32093
0.851	2.16701	0.32128
0.852	2.16589	0.32164
0.853	2.16477	0.32201
0.854	2.16365	0.32239
0.855	2.16253	0.32277
0.856	2.16141	0.32316
0.857	2.16028	0.32356
0.858	2.15916	0.32396
0.859	2.15804	0.32437
0.86	2.15692	0.32479
0.861	2.15579	0.32522
0.862	2.15467	0.32565
0.863	2.15355	0.32609
0.864	2.15243	0.32654
0.865	2.1513	0.327
0.866	2.15018	0.32746
0.867	2.14906	0.32793
0.868	2.14794	0.3284
0.869	2.14681	0.32889
0.87	2.14569	0.32938
0.871	2.14457	0.32987
0.872	2.14345	0.33038
0.873	2.14233	0.33089
0.874	2.14121	0.33141
0.875	2.14009	0.33194
0.876	2.13897	0.33247
0.877	2.13785	0.33301
0.878	2.13673	0.33356
0.879	2.13561	0.33411
0.88	2.13449	0.33467
0.881	2.13338	0.33524
0.882	2.13226	0.33582
0.883	2.13114	0.3364
0.884	2.13003	0.33699
0.885	2.12891	0.33758
0.886	2.1278	0.33819
0.887	2.12668	0.3388
0.888	2.12557	0.33941
0.889	2.12446	0.34004
0.89	2.12335	0.34067
0.891	2.12224	0.34131
0.892	2.12113	0.34195
0.893	2.12002	0.3426
0.894	2.11891	0.34326
0.895	2.1178	0.34393
0.896	2.11669	0.3446
0.897	2.11559	0.34528
0.898	2.11448	0.34597
0.899	2.11338	0.34667
0.9	2.11227	0.34737
0.901	2.11117	0.34808
0.902	2.11007	0.3488
0.903	2.10897	0.34952
0.904	2.10787	0.35025
0.905	2.10677	0.35099
0.906	2.10567	0.35173
0.907	2.10458	0.35249
0.908	2.10348	0.35325
0.909	2.10239	0.35401
0.91	2.1013	0.35479
0.911	2.10021	0.35557
0.912	2.09912	0.35636
0.913	2.09803	0.35715
0.914	2.09695	0.35796
0.915	2.09586	0.35877
0.916	2.09478	0.35958
0.917	2.0937	0.36041
0.918	2.09262	0.36124
0.919	2.09154	0.36208
0.92	2.09047	0.36293
0.921	2.08939	0.36378
0.922	2.08832	0.36464
0.923	2.08725	0.36551
0.924	2.08618	0.36639
0.925	2.08512	0.36727
0.926	2.08405	0.36816
0.927	2.08299	0.36906
0.928	2.08193	0.36996
0.929	2.08087	0.37088
0.93	2.07982	0.3718
0.931	2.07877	0.37272
0.932	2.07771	0.37366
0.933	2.07667	0.3746
0.934	2.07562	0.37555
0.935	2.07458	0.3765
0.936	2.07354	0.37747
0.937	2.0725	0.37844
0.938	2.07146	0.37941
0.939	2.07043	0.3804
0.94	2.0694	0.38139
0.941	2.06837	0.38239
0.942	2.06734	0.3834
0.943	2.06632	0.38441
0.944	2.0653	0.38543
0.945	2.06429	0.38646
0.946	2.06327	0.3875
0.947	2.06226	0.38854
0.948	2.06126	0.38959
0.949	2.06025	0.39064
0.95	2.05925	0.39171
0.951	2.05825	0.39278
0.952	2.05726	0.39386
0.953	2.05627	0.39494
0.954	2.05528	0.39604
0.955	2.05429	0.39714
0.956	2.05331	0.39824
0.957	2.05234	0.39936
0.958	2.05136	0.40048
0.959	2.05039	0.4016
0.96	2.04942	0.40274
0.961	2.04846	0.40388
0.962	2.0475	0.40503
0.963	2.04655	0.40618
0.964	2.04559	0.40735
0.965	2.04465	0.40852
0.966	2.0437	0.40969
0.967	2.04276	0.41088
0.968	2.04183	0.41207
0.969	2.04089	0.41326
0.97	2.03996	0.41447
0.971	2.03904	0.41568
0.972	2.03812	0.4169
0.973	2.03721	0.41812
0.974	2.03629	0.41935
0.975	2.03539	0.42059
0.976	2.03448	0.42184
0.977	2.03359	0.42309
0.978	2.03269	0.42434
0.979	2.0318	0.42561
0.98	2.03092	0.42688
0.981	2.03004	0.42816
0.982	2.02916	0.42944
0.983	2.02829	0.43074
0.984	2.02742	0.43203
0.985	2.02656	0.43334
0.986	2.0257	0.43465
0.987	2.02485	0.43597
0.988	2.02401	0.43729
0.989	2.02316	0.43862
0.99	2.02233	0.43996
0.991	2.02149	0.4413
0.992	2.02067	0.44265
0.993	2.01984	0.444
0.994	2.01903	0.44537
0.995	2.01821	0.44674
0.996	2.01741	0.44811
0.997	2.01661	0.44949
0.998	2.01581	0.45088
0.999	2.01502	0.45227
1.0	2.01423	0.45367
1.006	2.00964	0.46219
1.012	2.00525	0.47093
1.018	2.00107	0.47988
1.024	1.99711	0.48903
1.03	1.99338	0.49836
1.036	1.98989	0.50789
1.042	1.98664	0.51759
1.048	1.98364	0.52746
1.054	1.98091	0.53749
1.06	1.97844	0.54767
1.066	1.97624	0.55799
1.072	1.97432	0.56844
1.078	1.97268	0.57902
1.084	1.97133	0.58971
1.09	1.97028	0.60051
1.096	1.96953	0.61139
1.102	1.96908	0.62236
1.108	1.96894	0.6334
1.114	1.96912	0.6445
1.12	1.96962	0.65566
1.126	1.97045	0.66685
1.132	1.97161	0.67807
1.138	1.97312	0.68929
1.144	1.97499	0.7005
1.15	1.97719	0.71167
1.156	1.97975	0.72278
1.162	1.98263	0.7338
1.168	1.98584	0.74473
1.174	1.98937	0.75555
1.18	1.9932	0.76623
1.186	1.99733	0.77678
1.192	2.00173	0.78718
1.198	2.00641	0.79741
1.204	2.01134	0.80747
1.21	2.01652	0.81735
1.216	2.02194	0.82705
1.222	2.02757	0.83656
1.228	2.03342	0.84587
1.234	2.03946	0.85498
1.24	2.04569	0.86389
1.246	2.05209	0.87259
1.252	2.05866	0.88108
1.258	2.06538	0.88936
1.264	2.07225	0.89744
1.27	2.07925	0.90529
1.276	2.08638	0.91294
1.282	2.09362	0.92038
1.288	2.10097	0.9276
1.294	2.10842	0.93462
1.3	2.11595	0.94142
1.306	2.12357	0.94802
1.312	2.13127	0.95441
1.318	2.13903	0.9606
1.324	2.14686	0.96659
1.33	2.15473	0.97238
1.336	2.16266	0.97797
1.342	2.17063	0.98337
1.348	2.17863	0.98857
1.354	2.18667	0.99359
1.36	2.19473	0.99841
1.366	2.20281	1.00306
1.372	2.21091	1.00752
1.378	2.21903	1.01181
1.384	2.22715	1.01592
1.39	2.23527	1.01985
1.396	2.24339	1.02362
1.402	2.25151	1.02723
1.408	2.25963	1.03066
1.414	2.26773	1.03394
1.42	2.27582	1.03706
1.426	2.28389	1.04003
1.432	2.29195	1.04284
1.438	2.29998	1.04551
1.444	2.30799	1.04803
1.45	2.31598	1.0504
1.456	2.32393	1.05264
1.462	2.33186	1.05473
1.468	2.33975	1.0567
1.474	2.34761	1.05853
1.48	2.35543	1.06023
1.486	2.36321	1.0618
1.492	2.37096	1.06325
1.498	2.37866	1.06457
1.504	2.38633	1.06578
1.51	2.39395	1.06687
1.516	2.40152	1.06784
1.522	2.40905	1.0687
1.528	2.41653	1.06945
1.534	2.42397	1.0701
1.54	2.43135	1.07063
1.546	2.43869	1.07107
1.552	2.44597	1.0714
1.558	2.45321	1.07164
1.564	2.46039	1.07177
1.57	2.46752	1.07181
1.576	2.4746	1.07176
1.582	2.48163	1.07162
1.588	2.4886	1.07138
1.594	2.49551	1.07106
1.6	2.50237	1.07065
1.606	2.50918	1.07016
1.612	2.51593	1.06959
1.618	2.52262	1.06894
1.624	2.52926	1.0682
1.63	2.53584	1.06739
1.636	2.54236	1.06651
1.642	2.54883	1.06555
1.648	2.55524	1.06452
1.654	2.56159	1.06341
1.66	2.56789	1.06224
1.666	2.57412	1.061
1.672	2.5803	1.05969
1.678	2.58642	1.05832
1.684	2.59248	1.05688
1.69	2.59849	1.05538
1.696	2.60443	1.05382
1.702	2.61032	1.0522
1.708	2.61615	1.05051
1.714	2.62192	1.04878
1.72	2.62764	1.04698
1.726	2.63329	1.04513
1.732	2.63889	1.04323
1.738	2.64443	1.04127
1.744	2.64991	1.03926
1.75	2.65533	1.03721
1.756	2.6607	1.0351
1.762	2.66601	1.03294
1.768	2.67126	1.03073
1.774	2.67645	1.02848
1.78	2.68159	1.02619
1.786	2.68667	1.02384
1.792	2.69169	1.02146
1.798	2.69665	1.01903
1.804	2.70156	1.01656
1.81	2.70641	1.01405
1.816	2.71121	1.01149
1.822	2.71595	1.0089
1.828	2.72063	1.00627
1.834	2.72526	1.0036
1.84	2.72984	1.0009
1.846	2.73435	0.99816
1.852	2.73881	0.99538
1.858	2.74322	0.99257
1.864	2.74757	0.98973
1.87	2.75187	0.98685
1.876	2.75612	0.98394
1.882	2.76031	0.98099
1.888	2.76444	0.97802
1.894	2.76852	0.97501
1.9	2.77255	0.97198
1.906	2.77653	0.96892
1.912	2.78045	0.96582
1.918	2.78432	0.9627
1.924	2.78813	0.95955
1.93	2.7919	0.95638
1.936	2.79561	0.95318
1.942	2.79927	0.94995
1.948	2.80288	0.94669
1.954	2.80644	0.94342
1.96	2.80994	0.94011
1.966	2.8134	0.93679
1.972	2.8168	0.93344
1.978	2.82015	0.93007
1.984	2.82346	0.92667
1.99	2.82671	0.92326
1.996	2.82991	0.91982
2.002	2.83306	0.91636
2.008	2.83617	0.91288
2.014	2.83922	0.90938
2.02	2.84223	0.90586
2.026	2.84518	0.90233
2.032	2.84809	0.89877
2.038	2.85095	0.8952
2.044	2.85376	0.8916
2.05	2.85652	0.88799
2.056	2.85924	0.88436
2.062	2.86191	0.88072
2.068	2.86453	0.87706
2.074	2.8671	0.87338
2.08	2.86963	0.86968
2.086	2.87211	0.86597
2.092	2.87454	0.86225
2.098	2.87693	0.85851
2.104	2.87927	0.85476
2.11	2.88156	0.85099
2.116	2.88381	0.8472
2.122	2.88601	0.84341
2.128	2.88817	0.8396
2.134	2.89029	0.83578
2.14	2.89235	0.83194
2.146	2.89438	0.82809
2.152	2.89635	0.82423
2.158	2.89829	0.82036
2.164	2.90018	0.81647
2.17	2.90202	0.81258
2.176	2.90383	0.80867
2.182	2.90558	0.80475
2.188	2.9073	0.80082
2.194	2.90897	0.79688
2.2	2.9106	0.79293
2.206	2.91218	0.78897
2.212	2.91372	0.785
2.218	2.91522	0.78102
2.224	2.91668	0.77703
2.23	2.91809	0.77303
2.236	2.91946	0.76902
2.242	2.92079	0.765
2.248	2.92208	0.76098
2.254	2.92332	0.75694
2.26	2.92453	0.7529
2.266	2.92569	0.74885
2.272	2.92681	0.74479
2.278	2.92789	0.74072
2.284	2.92893	0.73664
2.29	2.92992	0.73256
2.296	2.93088	0.72847
2.302	2.93179	0.72437
2.308	2.93267	0.72027
2.314	2.9335	0.71615
2.32	2.93429	0.71203
2.326	2.93505	0.70791
2.332	2.93576	0.70378
2.338	2.93643	0.69964
2.344	2.93706	0.69549
2.35	2.93765	0.69134
2.356	2.9382	0.68718
2.362	2.93871	0.68302
2.368	2.93918	0.67885
2.374	2.93961	0.67467
2.38	2.94	0.67049
2.386	2.94035	0.66631
2.392	2.94067	0.66212
2.398	2.94094	0.65792
2.404	2.94117	0.65372
2.41	2.94136	0.64951
2.416	2.94151	0.6453
2.422	2.94163	0.64108
2.428	2.9417	0.63686
2.434	2.94173	0.63263
2.44	2.94173	0.6284
2.446	2.94168	0.62416
2.452	2.9416	0.61992
2.458	2.94147	0.61568
2.464	2.9413	0.61143
2.47	2.9411	0.60718
2.476	2.94085	0.60292
2.482	2.94057	0.59866
2.488	2.94024	0.5944
2.494	2.93987	0.59013
2.5	2.93946	0.58586

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: —

VO2 (Vanadium dioxide): all datasets

About VO2 (Vanadium dioxide)

Vanadium dioxide (VO₂) is a unique compound with a characteristic metal-insulator transition. At temperatures below 67°C, VO₂ acts as an insulator but rapidly becomes a conductor when heated above this threshold. This swift phase transition is accompanied by a structural change from a monoclinic to a tetragonal lattice. Because of this distinctive property, VO₂ has garnered significant attention for potential applications in electronics, particularly as a switch or in thermochromic devices. For example, its use in smart windows allows for the regulation of infrared radiation, enabling energy savings by blocking heat during summer or retaining it during winter. Furthermore, researchers have been exploring its potential in high-frequency electronics and optoelectronic devices.

More about VO2 (Vanadium dioxide) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/VO2/nk/Oguntoye-55C.yml
ID: ds_205d7412d78a
API: /v1/datasets/ds_205d7412d78a

Plot