Optical constants

Refractive index of Bi₂Se₃ (Bismuth selenide)

Fang et al. 2020: 2-layer (2L) film; n,k 0.193–1.69 µm

Data: tabulated nk
Range: 0.193–1.69 µm
Points: 1084
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 4.12903
Extinction coefficient k: 2.06791

Permittivity ε₁: 12.7727
Permittivity ε₂: 17.077

Absorption coefficient α: 442242 cm⁻¹
Penetration depth δ = λ/(2πk): 45.2241 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: 4.762 µm⁻¹

Group index n_g: 1.33088
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

# Bi2Se3 (Bismuth selenide): Fang et al. 2020: 2-layer (2L) film; n,k 0.193–1.69 µm
bi2se3 = ls.fetch_refractiveindex("main", "Bi2Se3", "Fang-2L", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(bi2se3.range_nm)  # (193, 1690) nm
eps = bi2se3.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_d8a56d10f076/lightsmith"
bi2se3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(bi2se3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (bi2se3/fang-2020-2l).

# ... load bi2se3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=bi2se3)],
    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

2-layer, 2L

Conditions

film thickness: 2L
substrate: sapphire

References

M. Fang, Z. Wang, H. Gu, M. Tong, B. Song, X. Xie, T. Zhou, X. Chen, H. Jiang, T. Jiang, S. Liu. Layer-dependent dielectric permittivity of topological insulator Bi₂Se₃ thin films. Appl. Surf. Sci. 509, 144822 (2020) (Numerical data kindly provided by Baokun Song)

doi:10.1016/j.apsusc.2019.144822 Layer-dependent dielectric permittivity of topological insulator Bi2Se3 thin films, Applied Surface Science (2020)

Cite

Mingsheng Fang et al.. Layer-dependent dielectric permittivity of topological insulator Bi2Se3 thin films. Applied Surface Science, 509, 144822 (2020), doi:10.1016/j.apsusc.2019.144822; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

1084 rows as published

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

Bi2Se3 (Bismuth selenide), Fang et al. 2020: 2-layer (2L) film; n,k 0.193–1.69 µm: n and k versus wavelength
λ (µm)	n	k
0.193	0.909305	1.429264
0.194	0.898825	1.461199
0.195	0.891888	1.486854
0.196	0.887151	1.50816
0.197	0.883811	1.526388
0.198	0.88137	1.542406
0.199	0.879509	1.556831
0.2	0.878024	1.570116
0.201	0.876785	1.582598
0.202	0.875709	1.594534
0.203	0.874751	1.606123
0.204	0.873888	1.617519
0.205	0.873112	1.628842
0.206	0.872432	1.640184
0.207	0.87186	1.651617
0.208	0.871417	1.663195
0.209	0.871125	1.674957
0.21	0.87101	1.686932
0.211	0.871097	1.699135
0.212	0.871411	1.711577
0.213	0.871977	1.72426
0.214	0.872816	1.737181
0.215	0.873949	1.750331
0.216	0.875395	1.763699
0.217	0.877169	1.77727
0.218	0.879286	1.791028
0.219	0.881756	1.804955
0.22	0.884588	1.81903
0.221	0.887788	1.833234
0.222	0.891361	1.847545
0.223	0.89531	1.861945
0.224	0.899634	1.876411
0.225	0.904333	1.890925
0.226	0.909404	1.905467
0.227	0.914843	1.920019
0.228	0.920646	1.934563
0.229	0.926806	1.949083
0.23	0.933316	1.963563
0.231	0.940169	1.977987
0.232	0.947358	1.992343
0.233	0.954872	2.006617
0.234	0.962705	2.020798
0.235	0.970846	2.034873
0.236	0.979287	2.048834
0.237	0.988018	2.062669
0.238	0.997031	2.076372
0.239	1.006314	2.089934
0.24	1.01586	2.103347
0.241	1.025659	2.116604
0.242	1.035703	2.129701
0.243	1.045981	2.14263
0.244	1.056486	2.155387
0.245	1.067209	2.167967
0.246	1.078142	2.180365
0.247	1.089275	2.192579
0.248	1.100602	2.204603
0.249	1.112113	2.216435
0.25	1.123802	2.228072
0.251	1.135661	2.239511
0.252	1.147682	2.250749
0.253	1.159857	2.261785
0.254	1.172181	2.272615
0.255	1.184645	2.283238
0.256	1.197242	2.293652
0.257	1.209967	2.303855
0.258	1.222811	2.313846
0.259	1.235769	2.323624
0.26	1.248833	2.333187
0.261	1.261997	2.342534
0.262	1.275255	2.351664
0.263	1.288599	2.360577
0.264	1.302025	2.369272
0.265	1.315525	2.377748
0.266	1.329092	2.386004
0.267	1.342721	2.394041
0.268	1.356406	2.401859
0.269	1.370139	2.409457
0.27	1.383916	2.416835
0.271	1.397729	2.423994
0.272	1.411572	2.430934
0.273	1.42544	2.437657
0.274	1.439325	2.444161
0.275	1.453223	2.45045
0.276	1.467127	2.456523
0.277	1.48103	2.462382
0.278	1.494927	2.468028
0.279	1.508812	2.473463
0.28	1.522679	2.478689
0.281	1.536523	2.483707
0.282	1.550336	2.488521
0.283	1.564114	2.493132
0.284	1.577851	2.497543
0.285	1.591542	2.501756
0.286	1.60518	2.505775
0.287	1.618761	2.509603
0.288	1.632279	2.513243
0.289	1.64573	2.516698
0.29	1.659108	2.519972
0.291	1.672408	2.523069
0.292	1.685626	2.525994
0.293	1.698757	2.528749
0.294	1.711796	2.53134
0.295	1.72474	2.533772
0.296	1.737585	2.536048
0.297	1.750326	2.538174
0.298	1.762961	2.540154
0.299	1.775485	2.541995
0.3	1.787895	2.5437
0.301	1.80019	2.545276
0.302	1.812364	2.546727
0.303	1.824417	2.54806
0.304	1.836346	2.54928
0.305	1.848148	2.550392
0.306	1.859822	2.551403
0.307	1.871367	2.552318
0.308	1.882781	2.553144
0.309	1.894064	2.553885
0.31	1.905213	2.554548
0.311	1.91623	2.555138
0.312	1.927113	2.555663
0.313	1.937862	2.556126
0.314	1.948479	2.556535
0.315	1.958962	2.556895
0.316	1.969313	2.557211
0.317	1.979534	2.55749
0.318	1.989624	2.557737
0.319	1.999587	2.557957
0.32	2.009422	2.558155
0.321	2.019133	2.558337
0.322	2.028721	2.558508
0.323	2.038188	2.558673
0.324	2.047538	2.558836
0.325	2.056773	2.559002
0.326	2.065895	2.559176
0.327	2.074908	2.559363
0.328	2.083815	2.559565
0.329	2.09262	2.559787
0.33	2.101325	2.560033
0.331	2.109936	2.560306
0.332	2.118454	2.56061
0.333	2.126885	2.560947
0.334	2.135232	2.561321
0.335	2.143499	2.561735
0.336	2.15169	2.56219
0.337	2.15981	2.562689
0.338	2.167863	2.563234
0.339	2.175853	2.563828
0.34	2.183785	2.56447
0.341	2.191662	2.565164
0.342	2.19949	2.565909
0.343	2.207271	2.566708
0.344	2.215012	2.56756
0.345	2.222716	2.568467
0.346	2.230386	2.569429
0.347	2.238029	2.570445
0.348	2.245647	2.571516
0.349	2.253245	2.572641
0.35	2.260827	2.573821
0.351	2.268397	2.575054
0.352	2.275958	2.57634
0.353	2.283515	2.577677
0.354	2.291071	2.579066
0.355	2.29863	2.580503
0.356	2.306195	2.581989
0.357	2.313769	2.583521
0.358	2.321357	2.585099
0.359	2.32896	2.586719
0.36	2.336582	2.588381
0.361	2.344227	2.590082
0.362	2.351896	2.59182
0.363	2.359592	2.593593
0.364	2.367317	2.595399
0.365	2.375075	2.597235
0.366	2.382866	2.5991
0.367	2.390694	2.60099
0.368	2.39856	2.602903
0.369	2.406466	2.604836
0.37	2.414414	2.606788
0.371	2.422404	2.608755
0.372	2.430439	2.610734
0.373	2.43852	2.612723
0.374	2.446647	2.61472
0.375	2.454822	2.616721
0.376	2.463045	2.618725
0.377	2.471318	2.620727
0.378	2.47964	2.622726
0.379	2.488013	2.624719
0.38	2.496436	2.626704
0.381	2.50491	2.628677
0.382	2.513435	2.630636
0.383	2.522011	2.632579
0.384	2.530638	2.634503
0.385	2.539315	2.636406
0.386	2.548043	2.638285
0.387	2.556821	2.640138
0.388	2.565649	2.641962
0.389	2.574525	2.643756
0.39	2.58345	2.645517
0.391	2.592422	2.647242
0.392	2.601442	2.648931
0.393	2.610507	2.65058
0.394	2.619617	2.652188
0.395	2.628771	2.653753
0.396	2.637968	2.655273
0.397	2.647208	2.656747
0.398	2.656488	2.658172
0.399	2.665807	2.659547
0.4	2.675165	2.66087
0.401	2.684559	2.66214
0.402	2.693989	2.663355
0.403	2.703454	2.664515
0.404	2.712951	2.665617
0.405	2.72248	2.666661
0.406	2.732039	2.667645
0.407	2.741627	2.668569
0.408	2.751241	2.66943
0.409	2.760881	2.670229
0.41	2.770545	2.670964
0.411	2.780232	2.671635
0.412	2.789939	2.67224
0.413	2.799666	2.67278
0.414	2.80941	2.673253
0.415	2.819171	2.673658
0.416	2.828947	2.673996
0.417	2.838735	2.674266
0.418	2.848536	2.674467
0.419	2.858346	2.674599
0.42	2.868165	2.674661
0.421	2.877991	2.674655
0.422	2.887822	2.674578
0.423	2.897658	2.674431
0.424	2.907496	2.674215
0.425	2.917334	2.673928
0.426	2.927173	2.673572
0.427	2.937009	2.673145
0.428	2.946842	2.672649
0.429	2.95667	2.672083
0.43	2.966493	2.671447
0.431	2.976307	2.670742
0.432	2.986113	2.669968
0.433	2.995909	2.669125
0.434	3.005693	2.668213
0.435	3.015465	2.667233
0.436	3.025222	2.666186
0.437	3.034964	2.665071
0.438	3.04469	2.663889
0.439	3.054399	2.662641
0.44	3.064089	2.661327
0.441	3.073759	2.659948
0.442	3.083408	2.658504
0.443	3.093035	2.656996
0.444	3.10264	2.655424
0.445	3.11222	2.653789
0.446	3.121776	2.652092
0.447	3.131305	2.650334
0.448	3.140808	2.648514
0.449	3.150284	2.646635
0.45	3.159731	2.644695
0.451	3.169148	2.642697
0.452	3.178536	2.640642
0.453	3.187893	2.638529
0.454	3.197218	2.636359
0.455	3.206511	2.634134
0.456	3.215772	2.631854
0.457	3.224999	2.62952
0.458	3.234191	2.627133
0.459	3.243349	2.624693
0.46	3.252472	2.622202
0.461	3.261559	2.61966
0.462	3.270609	2.617068
0.463	3.279623	2.614427
0.464	3.2886	2.611738
0.465	3.297539	2.609002
0.466	3.306441	2.606219
0.467	3.315304	2.60339
0.468	3.324129	2.600517
0.469	3.332914	2.597599
0.47	3.341661	2.594638
0.471	3.350368	2.591636
0.472	3.359036	2.588591
0.473	3.367663	2.585506
0.474	3.376251	2.582381
0.475	3.384799	2.579217
0.476	3.393306	2.576014
0.477	3.401773	2.572774
0.478	3.4102	2.569498
0.479	3.418586	2.566185
0.48	3.426932	2.562838
0.481	3.435238	2.559456
0.482	3.443503	2.55604
0.483	3.451727	2.552592
0.484	3.459911	2.549111
0.485	3.468055	2.545599
0.486	3.476159	2.542056
0.487	3.484223	2.538484
0.488	3.492247	2.534881
0.489	3.500231	2.53125
0.49	3.508175	2.527591
0.491	3.51608	2.523905
0.492	3.523946	2.520191
0.493	3.531773	2.516452
0.494	3.539561	2.512686
0.495	3.547311	2.508895
0.496	3.555022	2.50508
0.497	3.562695	2.501241
0.498	3.570331	2.497378
0.499	3.577929	2.493491
0.5	3.58549	2.489583
0.501	3.593014	2.485652
0.502	3.600502	2.481699
0.503	3.607953	2.477725
0.504	3.615369	2.473729
0.505	3.622749	2.469714
0.506	3.630094	2.465677
0.507	3.637404	2.461621
0.508	3.64468	2.457546
0.509	3.651922	2.45345
0.51	3.65913	2.449336
0.511	3.666304	2.445203
0.512	3.673446	2.441051
0.513	3.680555	2.43688
0.514	3.687632	2.432691
0.515	3.694676	2.428484
0.516	3.70169	2.424259
0.517	3.708672	2.420016
0.518	3.715623	2.415756
0.519	3.722543	2.411477
0.52	3.729434	2.407181
0.521	3.736294	2.402867
0.522	3.743125	2.398536
0.523	3.749927	2.394187
0.524	3.7567	2.38982
0.525	3.763444	2.385435
0.526	3.77016	2.381033
0.527	3.776848	2.376613
0.528	3.783508	2.372175
0.529	3.79014	2.367718
0.53	3.796745	2.363244
0.531	3.803323	2.358751
0.532	3.809874	2.35424
0.533	3.816398	2.34971
0.534	3.822896	2.345161
0.535	3.829367	2.340593
0.536	3.835812	2.336006
0.537	3.84223	2.331399
0.538	3.848623	2.326773
0.539	3.85499	2.322127
0.54	3.86133	2.31746
0.541	3.867645	2.312773
0.542	3.873934	2.308066
0.543	3.880197	2.303337
0.544	3.886434	2.298587
0.545	3.892644	2.293816
0.546	3.898829	2.289023
0.547	3.904987	2.284208
0.548	3.91112	2.279371
0.549	3.917225	2.274511
0.55	3.923304	2.269628
0.551	3.929357	2.264722
0.552	3.935382	2.259793
0.553	3.94138	2.25484
0.554	3.94735	2.249863
0.555	3.953293	2.244862
0.556	3.959207	2.239837
0.557	3.965093	2.234787
0.558	3.970951	2.229712
0.559	3.976779	2.224612
0.56	3.982577	2.219487
0.561	3.988346	2.214337
0.562	3.994085	2.209161
0.563	3.999792	2.20396
0.564	4.005469	2.198733
0.565	4.011113	2.193479
0.566	4.016726	2.1882
0.567	4.022306	2.182895
0.568	4.027852	2.177564
0.569	4.033365	2.172206
0.57	4.038844	2.166822
0.571	4.044288	2.161413
0.572	4.049696	2.155977
0.573	4.055069	2.150515
0.574	4.060405	2.145027
0.575	4.065704	2.139513
0.576	4.070965	2.133974
0.577	4.076187	2.128409
0.578	4.081371	2.122819
0.579	4.086515	2.117204
0.58	4.09162	2.111563
0.581	4.096683	2.105898
0.582	4.101706	2.100209
0.583	4.106686	2.094496
0.584	4.111623	2.088758
0.585	4.116518	2.082998
0.586	4.121369	2.077215
0.587	4.126176	2.071409
0.588	4.130938	2.065581
0.589	4.135654	2.059731
0.59	4.140325	2.05386
0.591	4.144949	2.047968
0.592	4.149526	2.042057
0.593	4.154055	2.036125
0.594	4.158537	2.030175
0.595	4.16297	2.024206
0.596	4.167354	2.01822
0.597	4.171688	2.012216
0.598	4.175973	2.006196
0.599	4.180208	2.00016
0.6	4.184392	1.994108
0.601	4.188524	1.988043
0.602	4.192606	1.981963
0.603	4.196636	1.975871
0.604	4.200613	1.969766
0.605	4.204539	1.96365
0.606	4.208412	1.957523
0.607	4.212232	1.951386
0.608	4.215999	1.94524
0.609	4.219713	1.939086
0.61	4.223373	1.932924
0.611	4.22698	1.926755
0.612	4.230534	1.92058
0.613	4.234033	1.9144
0.614	4.237479	1.908216
0.615	4.24087	1.902028
0.616	4.244208	1.895838
0.617	4.247492	1.889646
0.618	4.250723	1.883453
0.619	4.253899	1.877259
0.62	4.257021	1.871067
0.621	4.26009	1.864876
0.622	4.263105	1.858687
0.623	4.266066	1.852501
0.624	4.268975	1.846319
0.625	4.27183	1.840142
0.626	4.274633	1.83397
0.627	4.277382	1.827805
0.628	4.280079	1.821646
0.629	4.282724	1.815496
0.63	4.285317	1.809354
0.631	4.287859	1.803221
0.632	4.290349	1.797099
0.633	4.292788	1.790987
0.634	4.295177	1.784887
0.635	4.297515	1.778799
0.636	4.299804	1.772724
0.637	4.302043	1.766663
0.638	4.304233	1.760615
0.639	4.306375	1.754583
0.64	4.308468	1.748567
0.641	4.310514	1.742566
0.642	4.312512	1.736582
0.643	4.314464	1.730615
0.644	4.31637	1.724667
0.645	4.31823	1.718737
0.646	4.320044	1.712826
0.647	4.321814	1.706934
0.648	4.32354	1.701063
0.649	4.325223	1.695212
0.65	4.326862	1.689382
0.651	4.328459	1.683574
0.652	4.330014	1.677787
0.653	4.331527	1.672023
0.654	4.333	1.666282
0.655	4.334433	1.660564
0.656	4.335826	1.654869
0.657	4.33718	1.649199
0.658	4.338496	1.643552
0.659	4.339774	1.637931
0.66	4.341014	1.632334
0.661	4.342219	1.626762
0.662	4.343387	1.621216
0.663	4.34452	1.615696
0.664	4.345617	1.610202
0.665	4.346681	1.604734
0.666	4.347712	1.599293
0.667	4.348709	1.593878
0.668	4.349674	1.58849
0.669	4.350608	1.583129
0.67	4.35151	1.577795
0.671	4.352382	1.572489
0.672	4.353224	1.56721
0.673	4.354036	1.561959
0.674	4.35482	1.556736
0.675	4.355576	1.55154
0.676	4.356304	1.546373
0.677	4.357005	1.541233
0.678	4.35768	1.536122
0.679	4.358329	1.531038
0.68	4.358953	1.525983
0.681	4.359552	1.520955
0.682	4.360127	1.515956
0.683	4.360678	1.510985
0.684	4.361207	1.506042
0.685	4.361713	1.501127
0.686	4.362197	1.49624
0.687	4.362659	1.491382
0.688	4.363101	1.486551
0.689	4.363523	1.481747
0.69	4.363924	1.476972
0.691	4.364306	1.472225
0.692	4.36467	1.467505
0.693	4.365015	1.462812
0.694	4.365342	1.458147
0.695	4.365652	1.453509
0.696	4.365944	1.448898
0.697	4.366221	1.444314
0.698	4.366481	1.439757
0.699	4.366726	1.435226
0.7	4.366955	1.430722
0.701	4.36717	1.426245
0.702	4.36737	1.421793
0.703	4.367557	1.417368
0.704	4.36773	1.412968
0.705	4.36789	1.408594
0.706	4.368037	1.404245
0.707	4.368172	1.399921
0.708	4.368294	1.395623
0.709	4.368405	1.391349
0.71	4.368505	1.387099
0.711	4.368594	1.382874
0.712	4.368672	1.378673
0.713	4.36874	1.374496
0.714	4.368797	1.370342
0.715	4.368845	1.366212
0.716	4.368884	1.362105
0.717	4.368913	1.358021
0.718	4.368934	1.353959
0.719	4.368946	1.34992
0.72	4.368949	1.345903
0.721	4.368945	1.341907
0.722	4.368932	1.337934
0.723	4.368912	1.333981
0.724	4.368884	1.33005
0.725	4.368849	1.32614
0.726	4.368807	1.32225
0.727	4.368758	1.318381
0.728	4.368703	1.314532
0.729	4.368641	1.310702
0.73	4.368573	1.306892
0.731	4.368498	1.303102
0.732	4.368417	1.29933
0.733	4.368331	1.295578
0.734	4.368239	1.291844
0.735	4.368141	1.288128
0.736	4.368037	1.28443
0.737	4.367929	1.28075
0.738	4.367814	1.277088
0.739	4.367695	1.273443
0.74	4.367571	1.269815
0.741	4.367441	1.266204
0.742	4.367306	1.262609
0.743	4.367167	1.259031
0.744	4.367022	1.255469
0.745	4.366873	1.251923
0.746	4.366718	1.248393
0.747	4.36656	1.244878
0.748	4.366396	1.241379
0.749	4.366227	1.237894
0.75	4.366054	1.234425
0.751	4.365876	1.23097
0.752	4.365694	1.22753
0.753	4.365507	1.224104
0.754	4.365315	1.220693
0.755	4.365118	1.217295
0.756	4.364917	1.213911
0.757	4.364711	1.210541
0.758	4.3645	1.207184
0.759	4.364284	1.20384
0.76	4.364064	1.20051
0.761	4.363838	1.197193
0.762	4.363608	1.193888
0.763	4.363373	1.190597
0.764	4.363133	1.187317
0.765	4.362888	1.184051
0.766	4.362637	1.180797
0.767	4.362382	1.177555
0.768	4.362121	1.174325
0.769	4.361855	1.171108
0.77	4.361584	1.167902
0.771	4.361307	1.164709
0.772	4.361025	1.161527
0.773	4.360738	1.158357
0.774	4.360444	1.155198
0.775	4.360146	1.152052
0.776	4.359841	1.148917
0.777	4.359531	1.145793
0.778	4.359215	1.142681
0.779	4.358893	1.13958
0.78	4.358565	1.136491
0.781	4.358231	1.133413
0.782	4.357891	1.130347
0.783	4.357545	1.127292
0.784	4.357192	1.124249
0.785	4.356834	1.121216
0.786	4.356469	1.118195
0.787	4.356097	1.115186
0.788	4.355719	1.112188
0.789	4.355335	1.109201
0.79	4.354944	1.106226
0.791	4.354547	1.103263
0.792	4.354142	1.100311
0.793	4.353732	1.09737
0.794	4.353314	1.094441
0.795	4.35289	1.091524
0.796	4.352459	1.088618
0.797	4.352021	1.085724
0.798	4.351576	1.082842
0.799	4.351124	1.079972
0.8	4.350665	1.077114
0.801	4.3502	1.074268
0.802	4.349727	1.071434
0.803	4.349248	1.068612
0.804	4.348761	1.065802
0.805	4.348268	1.063005
0.806	4.347767	1.060221
0.807	4.34726	1.057449
0.808	4.346746	1.054689
0.809	4.346224	1.051942
0.81	4.345696	1.049209
0.811	4.345161	1.046488
0.812	4.344619	1.04378
0.813	4.34407	1.041085
0.814	4.343515	1.038404
0.815	4.342953	1.035736
0.816	4.342384	1.033082
0.817	4.341808	1.030441
0.818	4.341226	1.027814
0.819	4.340637	1.025201
0.82	4.340042	1.022601
0.821	4.33944	1.020016
0.822	4.338833	1.017446
0.823	4.338218	1.014889
0.824	4.337598	1.012347
0.825	4.336972	1.00982
0.826	4.33634	1.007307
0.827	4.335702	1.004809
0.828	4.335058	1.002326
0.829	4.334409	0.999859
0.83	4.333754	0.997406
0.831	4.333094	0.994969
0.832	4.332428	0.992547
0.833	4.331758	0.990141
0.834	4.331082	0.987751
0.835	4.330402	0.985376
0.836	4.329717	0.983017
0.837	4.329028	0.980674
0.838	4.328334	0.978348
0.839	4.327637	0.976038
0.84	4.326935	0.973744
0.841	4.326229	0.971466
0.842	4.32552	0.969206
0.843	4.324808	0.966962
0.844	4.324092	0.964734
0.845	4.323373	0.962524
0.846	4.322652	0.96033
0.847	4.321928	0.958154
0.848	4.321202	0.955995
0.849	4.320473	0.953853
0.85	4.319743	0.951728
0.851	4.31901	0.949621
0.852	4.318277	0.947532
0.853	4.317542	0.94546
0.854	4.316807	0.943405
0.855	4.31607	0.941368
0.856	4.315334	0.939349
0.857	4.314597	0.937348
0.858	4.31386	0.935364
0.859	4.313124	0.933399
0.86	4.312388	0.931451
0.861	4.311654	0.929522
0.862	4.310921	0.92761
0.863	4.310189	0.925716
0.864	4.309459	0.92384
0.865	4.308731	0.921982
0.866	4.308006	0.920143
0.867	4.307283	0.918321
0.868	4.306564	0.916517
0.869	4.305848	0.914731
0.87	4.305136	0.912963
0.871	4.304428	0.911213
0.872	4.303725	0.909481
0.873	4.303026	0.907766
0.874	4.302332	0.90607
0.875	4.301644	0.90439
0.876	4.300962	0.902729
0.877	4.300285	0.901085
0.878	4.299616	0.899458
0.879	4.298952	0.897849
0.88	4.298297	0.896256
0.881	4.297649	0.894681
0.882	4.297008	0.893123
0.883	4.296376	0.891581
0.884	4.295753	0.890056
0.885	4.295139	0.888547
0.886	4.294534	0.887055
0.887	4.293939	0.885578
0.888	4.293354	0.884118
0.889	4.292779	0.882673
0.89	4.292215	0.881243
0.891	4.291662	0.879829
0.892	4.291121	0.878429
0.893	4.290592	0.877044
0.894	4.290075	0.875673
0.895	4.289571	0.874317
0.896	4.289079	0.872974
0.897	4.288601	0.871645
0.898	4.288136	0.870328
0.899	4.287686	0.869025
0.9	4.287249	0.867733
0.901	4.286828	0.866454
0.902	4.286421	0.865187
0.903	4.286029	0.86393
0.904	4.285653	0.862685
0.905	4.285293	0.86145
0.906	4.284949	0.860225
0.907	4.284621	0.859009
0.908	4.28431	0.857803
0.909	4.284015	0.856605
0.91	4.283738	0.855416
0.911	4.283479	0.854234
0.912	4.283236	0.853059
0.913	4.283012	0.851891
0.914	4.282805	0.850729
0.915	4.282617	0.849572
0.916	4.282447	0.84842
0.917	4.282295	0.847273
0.918	4.282162	0.84613
0.919	4.282048	0.844989
0.92	4.281953	0.843852
0.921	4.281876	0.842717
0.922	4.281818	0.841583
0.923	4.281779	0.84045
0.924	4.281759	0.839317
0.925	4.281759	0.838184
0.926	4.281777	0.83705
0.927	4.281814	0.835914
0.928	4.281869	0.834775
0.929	4.281944	0.833634
0.93	4.282037	0.83249
0.931	4.282149	0.831341
0.932	4.282279	0.830187
0.933	4.282428	0.829028
0.934	4.282594	0.827863
0.935	4.282778	0.826691
0.936	4.28298	0.825511
0.937	4.283199	0.824324
0.938	4.283435	0.823128
0.939	4.283687	0.821922
0.94	4.283956	0.820707
0.941	4.284241	0.819482
0.942	4.284541	0.818245
0.943	4.284857	0.816997
0.944	4.285187	0.815736
0.945	4.285532	0.814463
0.946	4.28589	0.813177
0.947	4.286262	0.811877
0.948	4.286647	0.810563
0.949	4.287044	0.809234
0.95	4.287453	0.80789
0.951	4.287873	0.80653
0.952	4.288303	0.805154
0.953	4.288744	0.803762
0.954	4.289194	0.802353
0.955	4.289653	0.800926
0.956	4.29012	0.799483
0.957	4.290594	0.798021
0.958	4.291076	0.796541
0.959	4.291563	0.795043
0.96	4.292056	0.793526
0.961	4.292554	0.791991
0.962	4.293056	0.790436
0.963	4.293561	0.788862
0.964	4.294069	0.787269
0.965	4.294579	0.785656
0.966	4.29509	0.784024
0.967	4.295602	0.782372
0.968	4.296113	0.780701
0.969	4.296624	0.77901
0.97	4.297133	0.777299
0.971	4.29764	0.775569
0.972	4.298143	0.77382
0.973	4.298644	0.772051
0.974	4.299139	0.770263
0.975	4.29963	0.768456
0.976	4.300115	0.76663
0.977	4.300593	0.764785
0.978	4.301065	0.762922
0.979	4.301529	0.761041
0.98	4.301985	0.759142
0.981	4.302431	0.757225
0.982	4.302868	0.75529
0.983	4.303295	0.753339
0.984	4.303712	0.751371
0.985	4.304117	0.749387
0.986	4.304511	0.747387
0.987	4.304892	0.745371
0.988	4.305261	0.74334
0.989	4.305616	0.741295
0.99	4.305958	0.739235
0.991	4.306286	0.737161
0.992	4.306599	0.735074
0.993	4.306898	0.732975
0.994	4.307181	0.730863
0.995	4.307449	0.728739
0.996	4.3077	0.726603
0.997	4.307936	0.724457
0.998	4.308155	0.7223
0.999	4.308357	0.720133
1.0	4.308542	0.717957
1.0025	4.308929	0.71248
1.005	4.309205	0.706955
1.0075	4.309367	0.701391
1.01	4.309415	0.695797
1.0125	4.309347	0.690179
1.015	4.309163	0.684545
1.0175	4.308864	0.678904
1.02	4.30845	0.673262
1.0225	4.307923	0.667626
1.025	4.307285	0.662002
1.0275	4.306538	0.656397
1.03	4.305684	0.650816
1.0325	4.304727	0.645265
1.035	4.303669	0.639747
1.0375	4.302514	0.634269
1.04	4.301266	0.628834
1.0425	4.299928	0.623446
1.045	4.298504	0.618107
1.0475	4.296996	0.612822
1.05	4.295411	0.607592
1.0525	4.29375	0.602421
1.055	4.292018	0.597309
1.0575	4.290218	0.592259
1.06	4.288355	0.587272
1.0625	4.286432	0.582349
1.065	4.284452	0.577492
1.0675	4.282418	0.572701
1.07	4.280335	0.567976
1.0725	4.278205	0.563318
1.075	4.276031	0.558727
1.0775	4.273816	0.554202
1.08	4.271564	0.549745
1.0825	4.269276	0.545355
1.085	4.266956	0.541031
1.0875	4.264606	0.536773
1.09	4.262228	0.53258
1.0925	4.259825	0.528452
1.095	4.257398	0.524388
1.0975	4.254951	0.520387
1.1	4.252484	0.516449
1.1025	4.25	0.512573
1.105	4.2475	0.508757
1.1075	4.244986	0.505002
1.11	4.24246	0.501306
1.1125	4.239923	0.497667
1.115	4.237376	0.494086
1.1175	4.234821	0.490562
1.12	4.232259	0.487092
1.1225	4.229691	0.483677
1.125	4.227118	0.480315
1.1275	4.224541	0.477006
1.13	4.221961	0.473748
1.1325	4.21938	0.47054
1.135	4.216797	0.467382
1.1375	4.214213	0.464273
1.14	4.21163	0.461211
1.1425	4.209048	0.458196
1.145	4.206468	0.455226
1.1475	4.20389	0.452302
1.15	4.201315	0.449422
1.1525	4.198742	0.446585
1.155	4.196174	0.44379
1.1575	4.19361	0.441037
1.16	4.19105	0.438325
1.1625	4.188495	0.435652
1.165	4.185946	0.433019
1.1675	4.183402	0.430425
1.17	4.180864	0.427868
1.1725	4.178333	0.425348
1.175	4.175807	0.422864
1.1775	4.173289	0.420416
1.18	4.170777	0.418003
1.1825	4.168272	0.415624
1.185	4.165774	0.413278
1.1875	4.163284	0.410966
1.19	4.160801	0.408686
1.1925	4.158326	0.406438
1.195	4.155858	0.404221
1.1975	4.153399	0.402034
1.2	4.150947	0.399878
1.2025	4.148503	0.397751
1.205	4.146067	0.395653
1.2075	4.143639	0.393584
1.21	4.141219	0.391543
1.2125	4.138808	0.389529
1.215	4.136405	0.387543
1.2175	4.134009	0.385583
1.22	4.131622	0.383649
1.2225	4.129244	0.381741
1.225	4.126873	0.379858
1.2275	4.12451	0.378001
1.23	4.122156	0.376167
1.2325	4.11981	0.374358
1.235	4.117472	0.372573
1.2375	4.115142	0.370811
1.24	4.11282	0.369072
1.2425	4.110506	0.367356
1.245	4.1082	0.365662
1.2475	4.105902	0.36399
1.25	4.103612	0.362339
1.2525	4.101329	0.36071
1.255	4.099055	0.359103
1.2575	4.096788	0.357516
1.26	4.094528	0.355949
1.2625	4.092277	0.354403
1.265	4.090033	0.352877
1.2675	4.087796	0.35137
1.27	4.085566	0.349883
1.2725	4.083344	0.348415
1.275	4.081129	0.346967
1.2775	4.078922	0.345536
1.28	4.076721	0.344125
1.2825	4.074527	0.342732
1.285	4.072341	0.341356
1.2875	4.070161	0.339999
1.29	4.067988	0.33866
1.2925	4.065822	0.337338
1.295	4.063662	0.336033
1.2975	4.061509	0.334746
1.3	4.059362	0.333475
1.3025	4.057222	0.332221
1.305	4.055088	0.330984
1.3075	4.05296	0.329764
1.31	4.050838	0.32856
1.3125	4.048723	0.327372
1.315	4.046613	0.326201
1.3175	4.044509	0.325045
1.32	4.042411	0.323905
1.3225	4.040319	0.322781
1.325	4.038233	0.321673
1.3275	4.036152	0.32058
1.33	4.034076	0.319502
1.3325	4.032006	0.31844
1.335	4.029941	0.317393
1.3375	4.027882	0.316361
1.34	4.025828	0.315345
1.3425	4.023779	0.314343
1.345	4.021734	0.313356
1.3475	4.019695	0.312385
1.35	4.017661	0.311428
1.3525	4.015631	0.310486
1.355	4.013606	0.309558
1.3575	4.011586	0.308645
1.36	4.00957	0.307747
1.3625	4.007559	0.306864
1.365	4.005552	0.305995
1.3675	4.00355	0.30514
1.37	4.001552	0.3043
1.3725	3.999558	0.303475
1.375	3.997568	0.302664
1.3775	3.995582	0.301868
1.38	3.993601	0.301087
1.3825	3.991623	0.300319
1.385	3.989649	0.299567
1.3875	3.987679	0.298829
1.39	3.985713	0.298106
1.3925	3.983751	0.297397
1.395	3.981792	0.296703
1.3975	3.979837	0.296024
1.4	3.977886	0.295359
1.4025	3.975938	0.29471
1.405	3.973994	0.294075
1.4075	3.972053	0.293455
1.41	3.970116	0.292851
1.4125	3.968182	0.292261
1.415	3.966251	0.291687
1.4175	3.964324	0.291128
1.42	3.962401	0.290584
1.4225	3.96048	0.290056
1.425	3.958563	0.289543
1.4275	3.956649	0.289046
1.43	3.954739	0.288565
1.4325	3.952832	0.2881
1.435	3.950929	0.287652
1.4375	3.949028	0.287219
1.44	3.947131	0.286803
1.4425	3.945238	0.286403
1.445	3.943348	0.286021
1.4475	3.941461	0.285655
1.45	3.939578	0.285306
1.4525	3.937699	0.284974
1.455	3.935823	0.28466
1.4575	3.933951	0.284364
1.46	3.932083	0.284085
1.4625	3.930219	0.283825
1.465	3.928358	0.283583
1.4675	3.926502	0.283359
1.47	3.92465	0.283155
1.4725	3.922803	0.282969
1.475	3.92096	0.282802
1.4775	3.919121	0.282655
1.48	3.917288	0.282528
1.4825	3.915459	0.282421
1.485	3.913636	0.282334
1.4875	3.911818	0.282268
1.49	3.910006	0.282223
1.4925	3.9082	0.282199
1.495	3.9064	0.282197
1.4975	3.904607	0.282216
1.5	3.90282	0.282258
1.5025	3.90104	0.282322
1.505	3.899268	0.282409
1.5075	3.897504	0.282518
1.51	3.895748	0.282652
1.5125	3.894	0.282809
1.515	3.892262	0.28299
1.5175	3.890533	0.283195
1.52	3.888814	0.283426
1.5225	3.887106	0.283681
1.525	3.885409	0.283962
1.5275	3.883723	0.284268
1.53	3.88205	0.284601
1.5325	3.88039	0.28496
1.535	3.878743	0.285346
1.5375	3.877111	0.285758
1.54	3.875494	0.286198
1.5425	3.873893	0.286666
1.545	3.872308	0.287161
1.5475	3.870742	0.287684
1.55	3.869193	0.288236
1.5525	3.867664	0.288816
1.555	3.866156	0.289425
1.5575	3.864669	0.290063
1.56	3.863205	0.290729
1.5625	3.861765	0.291425
1.565	3.860349	0.29215
1.5675	3.858959	0.292903
1.57	3.857597	0.293686
1.5725	3.856264	0.294498
1.575	3.854961	0.295339
1.5775	3.853689	0.296208
1.58	3.85245	0.297106
1.5825	3.851245	0.298032
1.585	3.850076	0.298985
1.5875	3.848944	0.299966
1.59	3.847852	0.300973
1.5925	3.8468	0.302006
1.595	3.845791	0.303064
1.5975	3.844825	0.304147
1.6	3.843905	0.305254
1.6025	3.843032	0.306383
1.605	3.842208	0.307533
1.6075	3.841435	0.308703
1.61	3.840715	0.309891
1.6125	3.840048	0.311097
1.615	3.839437	0.312318
1.6175	3.838884	0.313553
1.62	3.838389	0.314799
1.6225	3.837955	0.316055
1.625	3.837583	0.317318
1.6275	3.837274	0.318587
1.63	3.83703	0.319858
1.6325	3.836851	0.321128
1.635	3.83674	0.322396
1.6375	3.836696	0.323658
1.64	3.836721	0.324912
1.6425	3.836815	0.326153
1.645	3.836979	0.327379
1.6475	3.837212	0.328587
1.65	3.837516	0.329772
1.6525	3.83789	0.330932
1.655	3.838334	0.332063
1.6575	3.838847	0.333161
1.66	3.839428	0.334222
1.6625	3.840077	0.335243
1.665	3.840791	0.336221
1.6675	3.84157	0.33715
1.67	3.842411	0.338029
1.6725	3.843313	0.338852
1.675	3.844273	0.339618
1.6775	3.845289	0.340322
1.68	3.846357	0.340961
1.6825	3.847475	0.341533
1.685	3.84864	0.342033
1.6875	3.849847	0.342461
1.69	3.851094	0.342813

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: —

Bi₂Se₃ (Bismuth selenide): all datasets

Thin film

Ermolaev et al. 2023: CVD film; n,k 0.290–3.30 µm n,k 0.29–3.3 µm default

2D structures

About Bi2Se3 (Bismuth selenide)

Bi₂Se₃, or bismuth selenide, is a layered compound with a rhombohedral crystal structure that has gained significant attention for its topological insulator properties. This material exhibits unique electronic states on its surface, while behaving as an insulator in its bulk. In the realm of optics, Bi₂Se₃ has shown promise for applications in photodetectors, modulators, and even as a platform for exploring exotic quantum phenomena. It has a high refractive index and exhibits strong optical anisotropy due to its layered crystal structure. Bi₂Se₃ also has a narrow bandgap and shows strong photoresponse across a broad spectrum, making it suitable for infrared applications. While the material can be synthesized through methods such as Bridgman-Stockbarger and chemical vapor deposition (CVD), it is somewhat sensitive to environmental conditions and may require protective coatings to maintain its properties. Overall, Bi₂Se₃ is a fascinating material that has captivated researchers for its intriguing electronic and optical characteristics, holding promise for future applications in optoelectronics and quantum computing.

More about Bi2Se3 (Bismuth selenide) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/Bi2Se3/nk/Fang-2L.yml
ID: ds_d8a56d10f076
API: /v1/datasets/ds_d8a56d10f076

Plot