Optical constants

Refractive index of Bi₂Te₃ (Bismuth telluride)

Ermolaev et al. 2024: CVD flakes; n,k 0.450–1.50 µm

Data: tabulated nk
Range: 0.45–1.5 µm
Points: 1051
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 2.64209
Extinction coefficient k: 4.26834

Permittivity ε₁: -11.2381
Permittivity ε₂: 22.5546

Absorption coefficient α: 912824 cm⁻¹
Penetration depth δ = λ/(2πk): 21.91 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: 6.11 µm⁻¹

Group index n_g: -0.94815
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

# Bi2Te3 (Bismuth telluride): Ermolaev et al. 2024: CVD flakes; n,k 0.450–1.50 µm
bi2te3 = ls.fetch_refractiveindex("main", "Bi2Te3", "Ermolaev", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(bi2te3.range_nm)  # (450, 1500) nm
eps = bi2te3.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_e274b51d2081/lightsmith"
bi2te3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(bi2te3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (bi2te3/ermolaev-2024).

# ... load bi2te3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=bi2te3)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=450, 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

Bi₂Te₃ CVD flakes on silicon substrate with 290 nm silicon dioxide.

Conditions

substrate: Si/SiO2

References

G. A. Ermolaev, I. S. Vyslanko, M. A. El-Sayed, M. K. Tatmyshevskiy, A. S. Slavich, D. I. Yakubovsky, A. Eghbali, R. I. Romanov, A. M. Markeev, I. A. Kruglov, S. M. Novikov, A. A. Vyshnevyy, A. V. Arsenin, V. S. Volkov. Unveiling the broadband optical properties of Bi₂Te₃: Ultrahigh refractive index and promising applications. Appl. Phys. Lett., 125, 241101 (2024) (Numerical data kindly provided by Georgy Ermolaev)

doi:10.1063/5.0219511 Unveiling the broadband optical properties of Bi2Te3: Ultrahigh refractive index and promising applications, Applied Physics Letters (2024)

Cite

Georgy A. Ermolaev et al.. Unveiling the broadband optical properties of Bi2Te3: Ultrahigh refractive index and promising applications. Applied Physics Letters, 125, 241101 (2024), doi:10.1063/5.0219511; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

1051 rows as published

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

Bi2Te3 (Bismuth telluride), Ermolaev et al. 2024: CVD flakes; n,k 0.450–1.50 µm: n and k versus wavelength
λ (µm)	n	k
0.45	1.84113	3.64345
0.451	1.84832	3.64764
0.452	1.85552	3.65182
0.453	1.86264	3.65595
0.454	1.86977	3.66009
0.455	1.87683	3.66418
0.456	1.88389	3.66826
0.457	1.89088	3.67231
0.458	1.89786	3.67636
0.459	1.90478	3.68037
0.46	1.9117	3.68438
0.461	1.91854	3.68836
0.462	1.92539	3.69234
0.463	1.93217	3.69628
0.464	1.93894	3.70023
0.465	1.94565	3.70415
0.466	1.95235	3.70807
0.467	1.95899	3.71197
0.468	1.96562	3.71587
0.469	1.97219	3.71975
0.47	1.97875	3.72363
0.471	1.98524	3.72749
0.472	1.99174	3.73136
0.473	1.99816	3.73521
0.474	2.00459	3.73906
0.475	2.01095	3.74291
0.476	2.01731	3.74675
0.477	2.0236	3.75059
0.478	2.02989	3.75443
0.479	2.03611	3.75827
0.48	2.04234	3.76211
0.481	2.0485	3.76595
0.482	2.05466	3.76979
0.483	2.06076	3.77363
0.484	2.06686	3.77748
0.485	2.07289	3.78133
0.486	2.07893	3.78518
0.487	2.08491	3.78905
0.488	2.09088	3.79291
0.489	2.0968	3.79679
0.49	2.10272	3.80067
0.491	2.10858	3.80456
0.492	2.11445	3.80845
0.493	2.12026	3.81237
0.494	2.12607	3.81628
0.495	2.13182	3.82022
0.496	2.13758	3.82415
0.497	2.14329	3.82811
0.498	2.149	3.83207
0.499	2.15466	3.83606
0.5	2.16032	3.84005
0.501	2.16594	3.84406
0.502	2.17156	3.84808
0.503	2.17713	3.85213
0.504	2.18271	3.85617
0.505	2.18825	3.86025
0.506	2.19378	3.86433
0.507	2.19928	3.86844
0.508	2.20478	3.87256
0.509	2.21024	3.87671
0.51	2.21571	3.88086
0.511	2.22114	3.88504
0.512	2.22657	3.88923
0.513	2.23198	3.89346
0.514	2.23738	3.89768
0.515	2.24276	3.90195
0.516	2.24814	3.90622
0.517	2.25349	3.91052
0.518	2.25884	3.91483
0.519	2.26418	3.91918
0.52	2.26951	3.92353
0.521	2.27483	3.92793
0.522	2.28014	3.93232
0.523	2.28544	3.93676
0.524	2.29074	3.9412
0.525	2.29603	3.94568
0.526	2.30132	3.95017
0.527	2.3066	3.95469
0.528	2.31187	3.95922
0.529	2.31714	3.9638
0.53	2.32242	3.96837
0.531	2.32768	3.97299
0.532	2.33295	3.97761
0.533	2.33822	3.98228
0.534	2.34348	3.98695
0.535	2.34875	3.99166
0.536	2.35402	3.99637
0.537	2.35929	4.00113
0.538	2.36456	4.00589
0.539	2.36984	4.0107
0.54	2.37512	4.0155
0.541	2.3804	4.02035
0.542	2.38569	4.02521
0.543	2.39099	4.0301
0.544	2.39629	4.035
0.545	2.4016	4.03994
0.546	2.40691	4.04489
0.547	2.41224	4.04988
0.548	2.41757	4.05486
0.549	2.42292	4.0599
0.55	2.42827	4.06493
0.551	2.43364	4.07001
0.552	2.43901	4.07508
0.553	2.44441	4.0802
0.554	2.4498	4.08532
0.555	2.45522	4.09048
0.556	2.46064	4.09565
0.557	2.46609	4.10085
0.558	2.47154	4.10605
0.559	2.47702	4.1113
0.56	2.4825	4.11654
0.561	2.48801	4.12182
0.562	2.49352	4.12711
0.563	2.49907	4.13243
0.564	2.50462	4.13775
0.565	2.5102	4.14311
0.566	2.51579	4.14847
0.567	2.52141	4.15387
0.568	2.52703	4.15926
0.569	2.53269	4.16469
0.57	2.53836	4.17012
0.571	2.54406	4.17559
0.572	2.54977	4.18105
0.573	2.55552	4.18655
0.574	2.56127	4.19205
0.575	2.56707	4.19758
0.576	2.57286	4.20311
0.577	2.57871	4.20867
0.578	2.58455	4.21423
0.579	2.59044	4.21981
0.58	2.59634	4.2254
0.581	2.60228	4.23102
0.582	2.60822	4.23663
0.583	2.61422	4.24227
0.584	2.62022	4.24791
0.585	2.62627	4.25358
0.586	2.63232	4.25924
0.587	2.63842	4.26493
0.588	2.64453	4.27061
0.589	2.65069	4.27632
0.59	2.65685	4.28203
0.591	2.66307	4.28776
0.592	2.66929	4.29349
0.593	2.67556	4.29923
0.594	2.68184	4.30498
0.595	2.68818	4.31074
0.596	2.69452	4.3165
0.597	2.70092	4.32228
0.598	2.70732	4.32805
0.599	2.71378	4.33384
0.6	2.72024	4.33963
0.601	2.72677	4.34543
0.602	2.73329	4.35123
0.603	2.73988	4.35705
0.604	2.74647	4.36286
0.605	2.75312	4.36867
0.606	2.75978	4.37449
0.607	2.7665	4.38032
0.608	2.77322	4.38614
0.609	2.78001	4.39197
0.61	2.78679	4.3978
0.611	2.79365	4.40363
0.612	2.8005	4.40946
0.613	2.80742	4.4153
0.614	2.81435	4.42113
0.615	2.82134	4.42696
0.616	2.82833	4.4328
0.617	2.83539	4.43863
0.618	2.84245	4.44446
0.619	2.84958	4.45028
0.62	2.85671	4.45611
0.621	2.86391	4.46193
0.622	2.87111	4.46775
0.623	2.87838	4.47356
0.624	2.88566	4.47937
0.625	2.893	4.48517
0.626	2.90034	4.49098
0.627	2.90776	4.49677
0.628	2.91517	4.50256
0.629	2.92266	4.50834
0.63	2.93015	4.51411
0.631	2.93771	4.51988
0.632	2.94526	4.52564
0.633	2.9529	4.53139
0.634	2.96053	4.53714
0.635	2.96823	4.54286
0.636	2.97594	4.54859
0.637	2.98371	4.5543
0.638	2.99149	4.56001
0.639	2.99934	4.5657
0.64	3.00719	4.57138
0.641	3.01511	4.57705
0.642	3.02304	4.58271
0.643	3.03103	4.58835
0.644	3.03903	4.59398
0.645	3.0471	4.5996
0.646	3.05517	4.60521
0.647	3.06331	4.61079
0.648	3.07145	4.61637
0.649	3.07967	4.62192
0.65	3.08788	4.62747
0.651	3.09617	4.63299
0.652	3.10446	4.63851
0.653	3.11282	4.644
0.654	3.12118	4.64948
0.655	3.12961	4.65493
0.656	3.13804	4.66038
0.657	3.14655	4.66579
0.658	3.15505	4.6712
0.659	3.16363	4.67657
0.66	3.17221	4.68195
0.661	3.18086	4.68728
0.662	3.1895	4.69261
0.663	3.19822	4.6979
0.664	3.20694	4.70319
0.665	3.21573	4.70843
0.666	3.22452	4.71368
0.667	3.23338	4.71888
0.668	3.24224	4.72408
0.669	3.25117	4.72923
0.67	3.2601	4.73438
0.671	3.2691	4.73948
0.672	3.2781	4.74458
0.673	3.28717	4.74964
0.674	3.29623	4.75469
0.675	3.30537	4.75969
0.676	3.31451	4.76469
0.677	3.32371	4.76963
0.678	3.33291	4.77458
0.679	3.34218	4.77947
0.68	3.35145	4.78436
0.681	3.36079	4.78919
0.682	3.37013	4.79402
0.683	3.37953	4.79879
0.684	3.38893	4.80357
0.685	3.3984	4.80828
0.686	3.40786	4.81299
0.687	3.41739	4.81765
0.688	3.42692	4.8223
0.689	3.43652	4.82689
0.69	3.44611	4.83147
0.691	3.45576	4.836
0.692	3.46542	4.84052
0.693	3.47514	4.84498
0.694	3.48485	4.84944
0.695	3.49463	4.85383
0.696	3.50441	4.85822
0.697	3.51424	4.86254
0.698	3.52408	4.86686
0.699	3.53397	4.87111
0.7	3.54387	4.87536
0.701	3.55382	4.87954
0.702	3.56377	4.88371
0.703	3.57378	4.88782
0.704	3.58379	4.89192
0.705	3.59385	4.89595
0.706	3.60391	4.89998
0.707	3.61403	4.90394
0.708	3.62414	4.90789
0.709	3.63431	4.91177
0.71	3.64448	4.91565
0.711	3.65471	4.91945
0.712	3.66493	4.92324
0.713	3.6752	4.92696
0.714	3.68547	4.93068
0.715	3.69579	4.93432
0.716	3.70611	4.93796
0.717	3.71648	4.94151
0.718	3.72685	4.94507
0.719	3.73726	4.94854
0.72	3.74768	4.95201
0.721	3.75814	4.9554
0.722	3.7686	4.95879
0.723	3.7791	4.96209
0.724	3.78961	4.96539
0.725	3.80015	4.96861
0.726	3.8107	4.97183
0.727	3.82129	4.97495
0.728	3.83187	4.97808
0.729	3.8425	4.98112
0.73	3.85313	4.98416
0.731	3.86379	4.98711
0.732	3.87446	4.99006
0.733	3.88516	4.99292
0.734	3.89586	4.99578
0.735	3.9066	4.99855
0.736	3.91733	5.00132
0.737	3.9281	5.00399
0.738	3.93887	5.00667
0.739	3.94968	5.00925
0.74	3.96048	5.01183
0.741	3.97131	5.01432
0.742	3.98214	5.01681
0.743	3.993	5.0192
0.744	4.00387	5.02159
0.745	4.01475	5.02389
0.746	4.02564	5.02619
0.747	4.03656	5.02839
0.748	4.04747	5.03059
0.749	4.05841	5.0327
0.75	4.06934	5.0348
0.751	4.0803	5.03681
0.752	4.09126	5.03882
0.753	4.10224	5.04073
0.754	4.11322	5.04264
0.755	4.12422	5.04445
0.756	4.13522	5.04626
0.757	4.14624	5.04797
0.758	4.15725	5.04968
0.759	4.16828	5.05129
0.76	4.17931	5.05291
0.761	4.19036	5.05442
0.762	4.2014	5.05593
0.763	4.21246	5.05734
0.764	4.22351	5.05876
0.765	4.23458	5.06007
0.766	4.24565	5.06138
0.767	4.25672	5.06259
0.768	4.26779	5.0638
0.769	4.27887	5.06491
0.77	4.28996	5.06602
0.771	4.30104	5.06703
0.772	4.31213	5.06803
0.773	4.32321	5.06894
0.774	4.3343	5.06985
0.775	4.34539	5.07065
0.776	4.35648	5.07146
0.777	4.36757	5.07216
0.778	4.37866	5.07286
0.779	4.38974	5.07346
0.78	4.40083	5.07407
0.781	4.41191	5.07457
0.782	4.42299	5.07507
0.783	4.43407	5.07546
0.784	4.44514	5.07586
0.785	4.45621	5.07616
0.786	4.46728	5.07645
0.787	4.47833	5.07665
0.788	4.48939	5.07685
0.789	4.50044	5.07694
0.79	4.51148	5.07703
0.791	4.52251	5.07703
0.792	4.53355	5.07702
0.793	4.54456	5.07691
0.794	4.55558	5.0768
0.795	4.56658	5.0766
0.796	4.57758	5.07639
0.797	4.58856	5.07608
0.798	4.59955	5.07577
0.799	4.61051	5.07536
0.8	4.62147	5.07496
0.801	4.63241	5.07445
0.802	4.64335	5.07394
0.803	4.65426	5.07334
0.804	4.66518	5.07273
0.805	4.67607	5.07203
0.806	4.68696	5.07132
0.807	4.69782	5.07052
0.808	4.70869	5.06972
0.809	4.71952	5.06882
0.81	4.73036	5.06793
0.811	4.74116	5.06693
0.812	4.75196	5.06594
0.813	4.76273	5.06485
0.814	4.77351	5.06376
0.815	4.78424	5.06257
0.816	4.79498	5.06139
0.817	4.80568	5.06011
0.818	4.81639	5.05883
0.819	4.82705	5.05745
0.82	4.83772	5.05608
0.821	4.84835	5.05462
0.822	4.85897	5.05315
0.823	4.86956	5.05159
0.824	4.88015	5.05004
0.825	4.89069	5.04839
0.826	4.90124	5.04674
0.827	4.91174	5.045
0.828	4.92225	5.04327
0.829	4.9327	5.04144
0.83	4.94316	5.03961
0.831	4.95358	5.0377
0.832	4.96399	5.03578
0.833	4.97435	5.03378
0.834	4.98472	5.03178
0.835	4.99504	5.0297
0.836	5.00535	5.02761
0.837	5.01562	5.02544
0.838	5.02589	5.02326
0.839	5.03611	5.02101
0.84	5.04632	5.01875
0.841	5.05649	5.01642
0.842	5.06665	5.01408
0.843	5.07676	5.01166
0.844	5.08687	5.00924
0.845	5.09693	5.00674
0.846	5.10698	5.00424
0.847	5.11698	5.00166
0.848	5.12698	4.99908
0.849	5.13693	4.99643
0.85	5.14687	4.99377
0.851	5.15676	4.99104
0.852	5.16664	4.98831
0.853	5.17647	4.9855
0.854	5.18629	4.98269
0.855	5.19606	4.97981
0.856	5.20582	4.97693
0.857	5.21553	4.97397
0.858	5.22523	4.97102
0.859	5.23487	4.96799
0.86	5.24452	4.96497
0.861	5.2541	4.96187
0.862	5.26368	4.95878
0.863	5.27319	4.95561
0.864	5.28271	4.95245
0.865	5.29216	4.94922
0.866	5.30161	4.94599
0.867	5.31099	4.94269
0.868	5.32038	4.93939
0.869	5.3297	4.93603
0.87	5.33902	4.93267
0.871	5.34827	4.92925
0.872	5.35752	4.92582
0.873	5.36671	4.92233
0.874	5.37589	4.91885
0.875	5.38501	4.9153
0.876	5.39412	4.91175
0.877	5.40317	4.90815
0.878	5.41221	4.90454
0.879	5.42119	4.90088
0.88	5.43017	4.89722
0.881	5.43908	4.8935
0.882	5.44798	4.88978
0.883	5.45682	4.88601
0.884	5.46566	4.88223
0.885	5.47442	4.87841
0.886	5.48319	4.87458
0.887	5.49188	4.8707
0.888	5.50058	4.86682
0.889	5.5092	4.86289
0.89	5.51782	4.85897
0.891	5.52637	4.85499
0.892	5.53492	4.85101
0.893	5.5434	4.84698
0.894	5.55187	4.84296
0.895	5.56028	4.83889
0.896	5.56868	4.83482
0.897	5.57701	4.8307
0.898	5.58535	4.82659
0.899	5.5936	4.82243
0.9	5.60186	4.81827
0.901	5.61004	4.81407
0.902	5.61823	4.80987
0.903	5.62634	4.80562
0.904	5.63445	4.80138
0.905	5.64248	4.7971
0.906	5.65052	4.79282
0.907	5.65848	4.78851
0.908	5.66645	4.78419
0.909	5.67433	4.77983
0.91	5.68222	4.77548
0.911	5.69004	4.77109
0.912	5.69785	4.7667
0.913	5.70559	4.76228
0.914	5.71333	4.75786
0.915	5.72099	4.7534
0.916	5.72866	4.74895
0.917	5.73625	4.74446
0.918	5.74384	4.73997
0.919	5.75136	4.73546
0.92	5.75888	4.73094
0.921	5.76632	4.7264
0.922	5.77376	4.72186
0.923	5.78113	4.71729
0.924	5.7885	4.71272
0.925	5.7958	4.70812
0.926	5.8031	4.70352
0.927	5.81032	4.6989
0.928	5.81754	4.69428
0.929	5.82469	4.68964
0.93	5.83184	4.685
0.931	5.83891	4.68033
0.932	5.84599	4.67566
0.933	5.85299	4.67098
0.934	5.86	4.66629
0.935	5.86693	4.66159
0.936	5.87386	4.65688
0.937	5.88072	4.65215
0.938	5.88758	4.64743
0.939	5.89436	4.64269
0.94	5.90115	4.63795
0.941	5.90786	4.63319
0.942	5.91458	4.62843
0.943	5.92122	4.62366
0.944	5.92787	4.61889
0.945	5.93444	4.6141
0.946	5.94101	4.60931
0.947	5.94751	4.60452
0.948	5.95401	4.59972
0.949	5.96045	4.59491
0.95	5.96688	4.5901
0.951	5.97319	4.58527
0.952	5.9795	4.58044
0.953	5.98581	4.57561
0.954	5.99212	4.57078
0.955	5.99843	4.56595
0.956	6.00457	4.56111
0.957	6.01071	4.55626
0.958	6.01685	4.55141
0.959	6.02299	4.54656
0.96	6.02913	4.54171
0.961	6.0351	4.53685
0.962	6.04107	4.53199
0.963	6.04704	4.52712
0.964	6.05301	4.52226
0.965	6.05898	4.5174
0.966	6.06479	4.51253
0.967	6.07059	4.50766
0.968	6.0764	4.50279
0.969	6.0822	4.49792
0.97	6.08801	4.49305
0.971	6.09365	4.48817
0.972	6.0993	4.4833
0.973	6.10494	4.47843
0.974	6.11059	4.47355
0.975	6.11623	4.46868
0.976	6.12172	4.46381
0.977	6.1272	4.45894
0.978	6.13269	4.45407
0.979	6.13818	4.4492
0.98	6.14366	4.44432
0.981	6.14899	4.43946
0.982	6.15433	4.4346
0.983	6.15966	4.42973
0.984	6.16499	4.42487
0.985	6.17032	4.42
0.986	6.1755	4.41515
0.987	6.18069	4.4103
0.988	6.18587	4.40545
0.989	6.19105	4.4006
0.99	6.19623	4.39574
0.991	6.20126	4.39091
0.992	6.2063	4.38607
0.993	6.21133	4.38124
0.994	6.21637	4.3764
0.995	6.2214	4.37156
0.996	6.2263	4.36675
0.997	6.23119	4.36193
0.998	6.23608	4.35712
0.999	6.24097	4.3523
1.0	6.24587	4.34748
1.001	6.25062	4.34269
1.002	6.25537	4.3379
1.003	6.26013	4.33311
1.004	6.26488	4.32831
1.005	6.26964	4.32352
1.006	6.27426	4.31876
1.007	6.27887	4.31399
1.008	6.28349	4.30923
1.009	6.28811	4.30446
1.01	6.29273	4.2997
1.011	6.29722	4.29496
1.012	6.30171	4.29023
1.013	6.3062	4.28549
1.014	6.31069	4.28075
1.015	6.31518	4.27602
1.016	6.31954	4.27132
1.017	6.32391	4.26662
1.018	6.32827	4.26191
1.019	6.33263	4.25721
1.02	6.33699	4.25251
1.021	6.34123	4.24784
1.022	6.34548	4.24318
1.023	6.34972	4.23851
1.024	6.35396	4.23384
1.025	6.3582	4.22918
1.026	6.36232	4.22455
1.027	6.36644	4.21992
1.028	6.37057	4.21529
1.029	6.37469	4.21066
1.03	6.37881	4.20604
1.031	6.38282	4.20145
1.032	6.38683	4.19686
1.033	6.39084	4.19227
1.034	6.39485	4.18768
1.035	6.39886	4.1831
1.036	6.40276	4.17855
1.037	6.40666	4.174
1.038	6.41055	4.16946
1.039	6.41445	4.16491
1.04	6.41835	4.16037
1.041	6.42214	4.15586
1.042	6.42594	4.15136
1.043	6.42973	4.14686
1.044	6.43352	4.14236
1.045	6.43732	4.13786
1.046	6.44101	4.1334
1.047	6.4447	4.12894
1.048	6.44839	4.12449
1.049	6.45208	4.12003
1.05	6.45577	4.11557
1.051	6.45936	4.11116
1.052	6.46296	4.10675
1.053	6.46655	4.10234
1.054	6.47014	4.09793
1.055	6.47373	4.09352
1.056	6.47723	4.08916
1.057	6.48073	4.0848
1.058	6.48423	4.08044
1.059	6.48773	4.07607
1.06	6.49122	4.07171
1.061	6.49463	4.0674
1.062	6.49804	4.06309
1.063	6.50144	4.05877
1.064	6.50485	4.05446
1.065	6.50826	4.05015
1.066	6.51158	4.04588
1.067	6.5149	4.04162
1.068	6.51822	4.03736
1.069	6.52154	4.03309
1.07	6.52486	4.02883
1.071	6.5281	4.02461
1.072	6.53133	4.0204
1.073	6.53457	4.01619
1.074	6.5378	4.01197
1.075	6.54104	4.00776
1.076	6.5442	4.0036
1.077	6.54735	3.99944
1.078	6.55051	3.99527
1.079	6.55367	3.99111
1.08	6.55682	3.98695
1.081	6.5599	3.98284
1.082	6.56298	3.97873
1.083	6.56606	3.97462
1.084	6.56914	3.9705
1.085	6.57222	3.96639
1.086	6.57522	3.96233
1.087	6.57823	3.95827
1.088	6.58123	3.95421
1.089	6.58424	3.95015
1.09	6.58725	3.94609
1.091	6.59018	3.94209
1.092	6.59312	3.93808
1.093	6.59605	3.93407
1.094	6.59899	3.93006
1.095	6.60192	3.92605
1.096	6.60479	3.9221
1.097	6.60766	3.91814
1.098	6.61052	3.91418
1.099	6.61339	3.91023
1.1	6.61626	3.90627
1.101	6.61906	3.90237
1.102	6.62187	3.89846
1.103	6.62467	3.89456
1.104	6.62747	3.89065
1.105	6.63028	3.88675
1.106	6.63302	3.8829
1.107	6.63576	3.87904
1.108	6.6385	3.87519
1.109	6.64124	3.87134
1.11	6.64398	3.86748
1.111	6.64667	3.86368
1.112	6.64935	3.85988
1.113	6.65203	3.85608
1.114	6.65472	3.85227
1.115	6.6574	3.84847
1.116	6.66002	3.84472
1.117	6.66265	3.84097
1.118	6.66528	3.83722
1.119	6.66791	3.83347
1.12	6.67053	3.82972
1.121	6.67311	3.82602
1.122	6.67568	3.82232
1.123	6.67825	3.81862
1.124	6.68083	3.81492
1.125	6.6834	3.81122
1.126	6.68592	3.80757
1.127	6.68844	3.80392
1.128	6.69097	3.80026
1.129	6.69349	3.79661
1.13	6.69601	3.79296
1.131	6.69848	3.78936
1.132	6.70096	3.78576
1.133	6.70343	3.78216
1.134	6.7059	3.77856
1.135	6.70838	3.77496
1.136	6.71081	3.77141
1.137	6.71323	3.76786
1.138	6.71566	3.76431
1.139	6.71809	3.76076
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1.141	6.7229	3.7537
1.142	6.72528	3.7502
1.143	6.72767	3.7467
1.144	6.73005	3.74319
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1.146	6.73477	3.73623
1.147	6.73711	3.73278
1.148	6.73946	3.72932
1.149	6.7418	3.72587
1.15	6.74414	3.72241
1.151	6.74644	3.71901
1.152	6.74874	3.7156
1.153	6.75104	3.71219
1.154	6.75335	3.70878
1.155	6.75565	3.70537
1.156	6.75791	3.70201
1.157	6.76017	3.69865
1.158	6.76244	3.69529
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1.16	6.76697	3.68857
1.161	6.76919	3.68525
1.162	6.77142	3.68194
1.163	6.77365	3.67862
1.164	6.77588	3.6753
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1.166	6.7803	3.66872
1.167	6.78249	3.66545
1.168	6.78468	3.66218
1.169	6.78688	3.6589
1.17	6.78907	3.65563
1.171	6.79123	3.65241
1.172	6.79339	3.64918
1.173	6.79556	3.64595
1.174	6.79772	3.64273
1.175	6.79988	3.6395
1.176	6.80201	3.63632
1.177	6.80414	3.63313
1.178	6.80627	3.62995
1.179	6.8084	3.62677
1.18	6.81053	3.62358
1.181	6.81263	3.62044
1.182	6.81473	3.6173
1.183	6.81683	3.61416
1.184	6.81893	3.61102
1.185	6.82103	3.60788
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1.187	6.82518	3.60168
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1.189	6.82933	3.59548
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1.193	6.83754	3.58321
1.194	6.83959	3.58015
1.195	6.84164	3.57709
1.196	6.84366	3.57407
1.197	6.84568	3.57105
1.198	6.84771	3.56803
1.199	6.84973	3.56501
1.2	6.85175	3.56199
1.201	6.85374	3.55903
1.202	6.85573	3.55607
1.203	6.85771	3.55311
1.204	6.8597	3.55015
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1.207	6.86567	3.54127
1.208	6.86765	3.53831
1.209	6.86964	3.53535
1.21	6.87163	3.53239
1.211	6.87357	3.5295
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1.213	6.87747	3.52373
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1.218	6.88719	3.5093
1.219	6.88914	3.50641
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1.221	6.89299	3.50071
1.222	6.8949	3.49789
1.223	6.89681	3.49508
1.224	6.89872	3.49226
1.225	6.90062	3.48945
1.226	6.90253	3.48663
1.227	6.90444	3.48382
1.228	6.90635	3.481
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1.23	6.91016	3.47537
1.231	6.91204	3.47262
1.232	6.91391	3.46987
1.233	6.91579	3.46713
1.234	6.91766	3.46438
1.235	6.91954	3.46163
1.236	6.92141	3.45888
1.237	6.92328	3.45613
1.238	6.92516	3.45338
1.239	6.92703	3.45064
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1.241	6.93075	3.4452
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1.246	6.93997	3.43178
1.247	6.94182	3.4291
1.248	6.94366	3.42641
1.249	6.9455	3.42373
1.25	6.94735	3.42105
1.251	6.94916	3.41842
1.252	6.95098	3.4158
1.253	6.9528	3.41317
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1.255	6.95643	3.40793
1.256	6.95825	3.4053
1.257	6.96007	3.40268
1.258	6.96189	3.40005
1.259	6.9637	3.39743
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1.263	6.9709	3.3871
1.264	6.97269	3.38454
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1.266	6.97628	3.3794
1.267	6.97807	3.37684
1.268	6.97987	3.37427
1.269	6.98166	3.3717
1.27	6.98345	3.36914
1.271	6.98523	3.36662
1.272	6.987	3.36411
1.273	6.98877	3.3616
1.274	6.99054	3.35908
1.275	6.99231	3.35657
1.276	6.99409	3.35406
1.277	6.99586	3.35154
1.278	6.99763	3.34903
1.279	6.9994	3.34652
1.28	7.00117	3.344
1.281	7.00293	3.34154
1.282	7.00468	3.33908
1.283	7.00643	3.33661
1.284	7.00819	3.33415
1.285	7.00994	3.33169
1.286	7.01169	3.32923
1.287	7.01344	3.32676
1.288	7.0152	3.3243
1.289	7.01695	3.32184
1.29	7.0187	3.31938
1.291	7.02044	3.31696
1.292	7.02218	3.31454
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1.297	7.03085	3.30247
1.298	7.03259	3.30005
1.299	7.03433	3.29764
1.3	7.03606	3.29522
1.301	7.03778	3.29285
1.302	7.0395	3.29048
1.303	7.04122	3.28811
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1.31	7.05327	3.27151
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1.32	7.07034	3.24821
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1.34	7.10412	3.20275
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1.347	7.11584	3.1872
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1.367	7.14909	3.14348
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1.37	7.15405	3.137
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1.377	7.16559	3.12204
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1.38	7.17053	3.11564
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1.386	7.18037	3.10296
1.387	7.18201	3.10085
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1.39	7.18693	3.09451
1.391	7.18856	3.09242
1.392	7.19019	3.09033
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1.394	7.19346	3.08615
1.395	7.19509	3.08406
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1.397	7.19836	3.07988
1.398	7.19999	3.07779
1.399	7.20162	3.0757
1.4	7.20326	3.07361
1.401	7.20488	3.07154
1.402	7.20651	3.06947
1.403	7.20813	3.0674
1.404	7.20976	3.06533
1.405	7.21139	3.06326
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1.407	7.21464	3.05912
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1.409	7.21789	3.05498
1.41	7.21952	3.05291
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1.412	7.22275	3.04881
1.413	7.22437	3.04676
1.414	7.22599	3.04471
1.415	7.22761	3.04266
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1.417	7.23085	3.03855
1.418	7.23247	3.0365
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1.42	7.23571	3.0324
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1.423	7.24054	3.02629
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1.425	7.24377	3.02222
1.426	7.24538	3.02019
1.427	7.24699	3.01815
1.428	7.24861	3.01612
1.429	7.25022	3.01408
1.43	7.25183	3.01205
1.431	7.25344	3.01003
1.432	7.25504	3.00801
1.433	7.25665	3.00598
1.434	7.25826	3.00396
1.435	7.25986	3.00194
1.436	7.26147	2.99992
1.437	7.26307	2.9979
1.438	7.26468	2.99588
1.439	7.26628	2.99386
1.44	7.26789	2.99184
1.441	7.26949	2.98984
1.442	7.27109	2.98783
1.443	7.27269	2.98582
1.444	7.27429	2.98381
1.445	7.27589	2.98181
1.446	7.27749	2.9798
1.447	7.27908	2.97779
1.448	7.28068	2.97579
1.449	7.28228	2.97378
1.45	7.28388	2.97177
1.451	7.28547	2.96978
1.452	7.28707	2.96778
1.453	7.28866	2.96579
1.454	7.29025	2.96379
1.455	7.29184	2.9618
1.456	7.29344	2.9598
1.457	7.29503	2.95781
1.458	7.29662	2.95581
1.459	7.29821	2.95382
1.46	7.29981	2.95182
1.461	7.30139	2.94984
1.462	7.30298	2.94785
1.463	7.30456	2.94587
1.464	7.30615	2.94388
1.465	7.30773	2.9419
1.466	7.30932	2.93991
1.467	7.3109	2.93793
1.468	7.31249	2.93594
1.469	7.31408	2.93396
1.47	7.31566	2.93197
1.471	7.31724	2.93
1.472	7.31882	2.92802
1.473	7.3204	2.92605
1.474	7.32197	2.92407
1.475	7.32355	2.92209
1.476	7.32513	2.92012
1.477	7.32671	2.91814
1.478	7.32829	2.91617
1.479	7.32987	2.91419
1.48	7.33144	2.91222
1.481	7.33302	2.91025
1.482	7.33459	2.90828
1.483	7.33616	2.90631
1.484	7.33773	2.90434
1.485	7.3393	2.90238
1.486	7.34087	2.90041
1.487	7.34244	2.89844
1.488	7.34401	2.89647
1.489	7.34558	2.8945
1.49	7.34716	2.89254
1.491	7.34872	2.89058
1.492	7.35028	2.88861
1.493	7.35185	2.88665
1.494	7.35341	2.88469
1.495	7.35497	2.88273
1.496	7.35654	2.88077
1.497	7.3581	2.87881
1.498	7.35966	2.87685
1.499	7.36123	2.87489
1.5	7.36279	2.87293

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: —

Bi₂Te₃ (Bismuth telluride): all datasets

Thin film

Ermolaev et al. 2024: CVD flakes; n,k 0.450–1.50 µm n,k 0.45–1.5 µm default

About Bi2Te3 (Bismuth telluride)

Bi₂Te₃, or bismuth telluride, is a layered compound with a rhombohedral crystal structure, renowned for its thermoelectric properties and significant role in energy conversion applications. It is a topological insulator that exhibits unique electronic states on its surface while being insulating in its bulk. In optics, Bi₂Te₃ is recognized for its high refractive index and strong optical anisotropy, stemming from its layered structure. The material's narrow bandgap and excellent carrier mobility make it suitable for infrared photodetectors, modulators, and other optoelectronic devices. Bi₂Te₃ can be synthesized using techniques such as zone melting, Bridgman-Stockbarger, and chemical vapor deposition (CVD). However, it is sensitive to environmental conditions, necessitating protective measures to preserve its optical and electronic properties. This material continues to be a subject of intense research for applications in thermoelectrics, photonics, and quantum technology.

More about Bi2Te3 (Bismuth telluride) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/Bi2Te3/nk/Ermolaev.yml
ID: ds_e274b51d2081
API: /v1/datasets/ds_e274b51d2081

Plot