Optical constants

Refractive index of Al₂O₃ (Aluminium sesquioxide, Sapphire, Alumina)

Zhukovsky et al. 2015: n 0.211–1.69 µm

Data: tabulated nk
Range: 0.211–1.69 µm
Points: 700
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.62749
Extinction coefficient k: 0

Permittivity ε₁: 2.64873
Permittivity ε₂: 0

Absorption coefficient α: 0 cm⁻¹
Penetration depth δ = λ/(2πk): — nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.0550285 µm⁻¹

Group index n_g: 1.65983
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

# Al2O3 (Aluminium sesquioxide, Sapphire, Alumina): Zhukovsky et al. 2015: n 0.211–1.69 µm
al2o3 = ls.fetch_refractiveindex("main", "Al2O3", "Zhukovsky", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(al2o3.range_nm)  # (211.002, 1689.84) nm
eps = al2o3.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_4e8a0a37e3c2/lightsmith"
al2o3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(al2o3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (al2o3/zhukovsky-2015).

# ... load al2o3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=al2o3)],
    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

20 nm thick films on Si substrate deposited by atomic layer deposition (ALD) at 120 °C deposition temperature.

Conditions

film thickness: 20e-9
substrate: Si

References

S. V. Zhukovsky, A. Andryieuski, O. Takayama, E. Shkondin, R. Malureanu, F. Jensen, A. V. Lavrinenko. Experimental demonstration of effective medium approximation breakdown in deeply subwavelength all-dielectric multilayers. Phys. Rev. Lett. 115, 177402 (2015) (Numerical data kindly provided by Osamu Takayama)

doi:10.1103/physrevlett.115.177402 Experimental Demonstration of Effective Medium Approximation Breakdown in Deeply Subwavelength All-Dielectric Multilayers, Physical Review Letters (2015)

Cite

Sergei V. Zhukovsky et al.. Experimental Demonstration of Effective Medium Approximation Breakdown in Deeply Subwavelength All-Dielectric Multilayers. Physical Review Letters, 115, 177402 (2015), doi:10.1103/physrevlett.115.177402; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

700 rows as published

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

Al2O3 (Aluminium sesquioxide, Sapphire, Alumina), Zhukovsky et al. 2015: n 0.211–1.69 µm: n and k versus wavelength
λ (µm)	n	k
0.211002	1.785916	0.001309
0.212576	1.781681	0.001117
0.21415	1.77764	0.000955
0.215724	1.77378	0.000818
0.217299	1.770087	0.000703
0.218873	1.76655	0.000605
0.220447	1.763159	0.000522
0.222022	1.759904	0.000451
0.223596	1.756776	0.000391
0.225171	1.753769	0.00034
0.226746	1.750874	0.000295
0.228321	1.748085	0.000257
0.229896	1.745395	0.000225
0.231471	1.7428	0.000197
0.233046	1.740294	0.000172
0.234621	1.737872	0.000151
0.236196	1.73553	0.000133
0.237771	1.733263	0.000117
0.239347	1.731069	0.000103
0.240922	1.728943	9.1e-05
0.242498	1.726882	8.1e-05
0.244073	1.724884	7.2e-05
0.245649	1.722944	6.4e-05
0.247225	1.721062	5.7e-05
0.2488	1.719233	5e-05
0.250376	1.717456	4.5e-05
0.251952	1.715729	4e-05
0.253528	1.714048	3.6e-05
0.255105	1.712414	3.2e-05
0.256681	1.710823	2.9e-05
0.258257	1.709274	2.6e-05
0.259833	1.707765	2.3e-05
0.26141	1.706295	2.1e-05
0.262986	1.704862	1.9e-05
0.264563	1.703465	1.7e-05
0.266139	1.702103	1.6e-05
0.267716	1.700773	1.4e-05
0.269293	1.699476	1.3e-05
0.27087	1.69821	1.2e-05
0.272447	1.696973	1e-05
0.274024	1.695766	1e-05
0.275601	1.694586	9e-06
0.277178	1.693433	8e-06
0.278755	1.692306	7e-06
0.280332	1.691205	7e-06
0.281909	1.690127	6e-06
0.283487	1.689074	6e-06
0.285064	1.688043	5e-06
0.286642	1.687034	5e-06
0.288219	1.686047	4e-06
0.289797	1.68508	4e-06
0.291375	1.684134	4e-06
0.292952	1.683207	3e-06
0.29453	1.6823	3e-06
0.296108	1.68141	3e-06
0.297686	1.680539	3e-06
0.299264	1.679685	2e-06
0.300842	1.678848	2e-06
0.30242	1.678027	2e-06
0.303998	1.677222	2e-06
0.305576	1.676433	2e-06
0.307155	1.675659	2e-06
0.308733	1.674899	2e-06
0.310311	1.674154	1e-06
0.31189	1.673423	1e-06
0.313468	1.672705	1e-06
0.315047	1.672001	1e-06
0.316626	1.671309	1e-06
0.318204	1.67063	1e-06
0.319783	1.669963	1e-06
0.321362	1.669308	1e-06
0.322941	1.668664	1e-06
0.32452	1.668032	1e-06
0.326099	1.667411	1e-06
0.327678	1.666801	1e-06
0.329257	1.666201	1e-06
0.330836	1.665612	1e-06
0.332415	1.665032	1e-06
0.333994	1.664462	1e-06
0.335573	1.663902	0.0
0.337153	1.663351	0.0
0.338732	1.66281	0.0
0.340311	1.662277	0.0
0.341891	1.661752	0.0
0.34347	1.661237	0.0
0.34505	1.660729	0.0
0.34663	1.66023	0.0
0.348209	1.659739	0.0
0.349789	1.659255	0.0
0.351369	1.658779	0.0
0.352948	1.658311	0.0
0.354528	1.65785	0.0
0.356108	1.657395	0.0
0.357688	1.656948	0.0
0.359268	1.656508	0.0
0.360848	1.656074	0.0
0.362428	1.655647	0.0
0.364008	1.655226	0.0
0.365588	1.654812	0.0
0.367169	1.654403	0.0
0.368749	1.654001	0.0
0.370329	1.653604	0.0
0.371909	1.653214	0.0
0.37349	1.652829	0.0
0.37507	1.652449	0.0
0.37665	1.652075	0.0
0.378231	1.651706	0.0
0.379811	1.651343	0.0
0.381392	1.650984	0.0
0.382972	1.650631	0.0
0.384553	1.650283	0.0
0.386134	1.649939	0.0
0.387714	1.6496	0.0
0.389295	1.649266	0.0
0.390876	1.648936	0.0
0.392457	1.648611	0.0
0.394037	1.64829	0.0
0.395618	1.647973	0.0
0.397199	1.647661	0.0
0.39878	1.647353	0.0
0.400361	1.647049	0.0
0.401942	1.646749	0.0
0.403523	1.646453	0.0
0.405104	1.646161	0.0
0.406685	1.645872	0.0
0.408266	1.645587	0.0
0.409847	1.645306	0.0
0.411428	1.645029	0.0
0.41301	1.644755	0.0
0.414591	1.644484	0.0
0.416172	1.644217	0.0
0.417753	1.643954	0.0
0.419335	1.643693	0.0
0.420916	1.643436	0.0
0.422497	1.643182	0.0
0.424079	1.642931	0.0
0.42566	1.642684	0.0
0.427241	1.642439	0.0
0.428823	1.642197	0.0
0.430404	1.641958	0.0
0.431986	1.641722	0.0
0.433567	1.641489	0.0
0.435149	1.641259	0.0
0.43673	1.641031	0.0
0.438312	1.640806	0.0
0.439894	1.640584	0.0
0.441475	1.640365	0.0
0.443057	1.640147	0.0
0.444638	1.639933	0.0
0.44622	1.639721	0.0
0.447802	1.639511	0.0
0.449384	1.639304	0.0
0.450965	1.639099	0.0
0.452547	1.638897	0.0
0.454129	1.638697	0.0
0.455711	1.638499	0.0
0.457292	1.638303	0.0
0.458874	1.63811	0.0
0.460456	1.637918	0.0
0.462038	1.637729	0.0
0.46362	1.637542	0.0
0.465202	1.637357	0.0
0.466784	1.637174	0.0
0.468365	1.636993	0.0
0.469947	1.636814	0.0
0.471529	1.636637	0.0
0.473111	1.636462	0.0
0.474693	1.636289	0.0
0.476275	1.636117	0.0
0.477857	1.635948	0.0
0.479439	1.63578	0.0
0.481021	1.635614	0.0
0.482603	1.63545	0.0
0.484185	1.635287	0.0
0.485767	1.635126	0.0
0.487349	1.634967	0.0
0.488931	1.63481	0.0
0.490513	1.634654	0.0
0.492095	1.6345	0.0
0.493677	1.634347	0.0
0.495259	1.634196	0.0
0.496841	1.634047	0.0
0.498423	1.633899	0.0
0.500005	1.633752	0.0
0.501587	1.633607	0.0
0.503169	1.633464	0.0
0.504752	1.633322	0.0
0.506334	1.633181	0.0
0.507916	1.633042	0.0
0.509498	1.632904	0.0
0.51108	1.632767	0.0
0.512662	1.632632	0.0
0.514244	1.632498	0.0
0.515826	1.632366	0.0
0.517408	1.632235	0.0
0.51899	1.632105	0.0
0.520572	1.631976	0.0
0.522154	1.631849	0.0
0.523736	1.631722	0.0
0.525318	1.631597	0.0
0.526901	1.631474	0.0
0.528483	1.631351	0.0
0.530065	1.63123	0.0
0.531647	1.631109	0.0
0.533229	1.63099	0.0
0.534811	1.630872	0.0
0.536393	1.630755	0.0
0.537975	1.630639	0.0
0.539557	1.630525	0.0
0.541139	1.630411	0.0
0.542721	1.630298	0.0
0.544303	1.630187	0.0
0.545885	1.630076	0.0
0.547467	1.629966	0.0
0.549049	1.629858	0.0
0.550631	1.62975	0.0
0.552213	1.629644	0.0
0.553794	1.629538	0.0
0.555376	1.629434	0.0
0.556958	1.62933	0.0
0.55854	1.629227	0.0
0.560122	1.629125	0.0
0.561704	1.629024	0.0
0.563286	1.628924	0.0
0.564868	1.628825	0.0
0.566449	1.628727	0.0
0.568031	1.628629	0.0
0.569613	1.628533	0.0
0.571195	1.628437	0.0
0.572776	1.628342	0.0
0.574358	1.628248	0.0
0.57594	1.628155	0.0
0.577522	1.628062	0.0
0.579103	1.62797	0.0
0.580685	1.62788	0.0
0.582267	1.627789	0.0
0.583848	1.6277	0.0
0.58543	1.627612	0.0
0.587012	1.627524	0.0
0.588593	1.627437	0.0
0.590175	1.62735	0.0
0.591756	1.627265	0.0
0.593338	1.62718	0.0
0.594919	1.627096	0.0
0.596501	1.627012	0.0
0.598082	1.62693	0.0
0.599663	1.626847	0.0
0.601245	1.626766	0.0
0.602826	1.626685	0.0
0.604407	1.626605	0.0
0.605989	1.626526	0.0
0.60757	1.626447	0.0
0.609151	1.626369	0.0
0.610733	1.626291	0.0
0.612314	1.626215	0.0
0.613895	1.626138	0.0
0.615476	1.626063	0.0
0.617057	1.625988	0.0
0.618638	1.625913	0.0
0.620219	1.625839	0.0
0.6218	1.625766	0.0
0.623381	1.625694	0.0
0.624962	1.625621	0.0
0.626543	1.62555	0.0
0.628124	1.625479	0.0
0.629705	1.625409	0.0
0.631286	1.625339	0.0
0.632867	1.62527	0.0
0.634447	1.625201	0.0
0.636028	1.625133	0.0
0.637609	1.625065	0.0
0.639189	1.624998	0.0
0.64077	1.624931	0.0
0.642351	1.624865	0.0
0.643931	1.624799	0.0
0.645512	1.624734	0.0
0.647092	1.62467	0.0
0.648672	1.624606	0.0
0.650253	1.624542	0.0
0.651833	1.624479	0.0
0.653414	1.624416	0.0
0.654994	1.624354	0.0
0.656574	1.624292	0.0
0.658154	1.624231	0.0
0.659734	1.62417	0.0
0.661315	1.62411	0.0
0.662895	1.62405	0.0
0.664475	1.62399	0.0
0.666055	1.623931	0.0
0.667635	1.623873	0.0
0.669214	1.623815	0.0
0.670794	1.623757	0.0
0.672374	1.6237	0.0
0.673954	1.623643	0.0
0.675534	1.623586	0.0
0.677113	1.62353	0.0
0.678693	1.623475	0.0
0.680273	1.623419	0.0
0.681852	1.623365	0.0
0.683432	1.62331	0.0
0.685011	1.623256	0.0
0.68659	1.623202	0.0
0.68817	1.623149	0.0
0.689749	1.623096	0.0
0.691328	1.623044	0.0
0.692907	1.622992	0.0
0.694487	1.62294	0.0
0.696066	1.622888	0.0
0.697645	1.622837	0.0
0.699224	1.622787	0.0
0.700803	1.622736	0.0
0.702381	1.622686	0.0
0.70396	1.622637	0.0
0.705539	1.622587	0.0
0.707118	1.622538	0.0
0.708696	1.62249	0.0
0.710275	1.622441	0.0
0.711854	1.622393	0.0
0.713432	1.622346	0.0
0.71501	1.622299	0.0
0.716589	1.622252	0.0
0.718167	1.622205	0.0
0.719745	1.622159	0.0
0.721324	1.622113	0.0
0.722902	1.622067	0.0
0.72448	1.622022	0.0
0.726058	1.621976	0.0
0.727636	1.621932	0.0
0.729214	1.621887	0.0
0.730792	1.621843	0.0
0.732369	1.621799	0.0
0.733947	1.621756	0.0
0.735525	1.621712	0.0
0.737102	1.621669	0.0
0.73868	1.621627	0.0
0.740257	1.621584	0.0
0.741835	1.621542	0.0
0.743412	1.6215	0.0
0.744989	1.621459	0.0
0.746566	1.621417	0.0
0.748144	1.621376	0.0
0.749721	1.621335	0.0
0.751298	1.621295	0.0
0.752875	1.621255	0.0
0.754451	1.621215	0.0
0.756028	1.621175	0.0
0.757605	1.621135	0.0
0.759182	1.621096	0.0
0.760758	1.621057	0.0
0.762335	1.621018	0.0
0.763911	1.62098	0.0
0.765488	1.620942	0.0
0.767064	1.620904	0.0
0.76864	1.620866	0.0
0.770216	1.620829	0.0
0.771792	1.620791	0.0
0.773368	1.620754	0.0
0.774944	1.620717	0.0
0.77652	1.620681	0.0
0.778096	1.620644	0.0
0.779672	1.620608	0.0
0.781247	1.620572	0.0
0.782823	1.620537	0.0
0.784398	1.620501	0.0
0.785974	1.620466	0.0
0.787549	1.620431	0.0
0.789124	1.620396	0.0
0.7907	1.620362	0.0
0.792275	1.620327	0.0
0.79385	1.620293	0.0
0.795425	1.620259	0.0
0.797	1.620226	0.0
0.798574	1.620192	0.0
0.800149	1.620159	0.0
0.801724	1.620126	0.0
0.803298	1.620093	0.0
0.804873	1.62006	0.0
0.806447	1.620028	0.0
0.808021	1.619995	0.0
0.809596	1.619963	0.0
0.81117	1.619931	0.0
0.812744	1.6199	0.0
0.814318	1.619868	0.0
0.815891	1.619837	0.0
0.817465	1.619805	0.0
0.819039	1.619774	0.0
0.820613	1.619744	0.0
0.822186	1.619713	0.0
0.82376	1.619683	0.0
0.825333	1.619652	0.0
0.826906	1.619622	0.0
0.828479	1.619592	0.0
0.830052	1.619563	0.0
0.831625	1.619533	0.0
0.833198	1.619504	0.0
0.834771	1.619475	0.0
0.836344	1.619445	0.0
0.837916	1.619417	0.0
0.839489	1.619388	0.0
0.841061	1.619359	0.0
0.842634	1.619331	0.0
0.844206	1.619303	0.0
0.845778	1.619275	0.0
0.84735	1.619247	0.0
0.848922	1.619219	0.0
0.850494	1.619192	0.0
0.852066	1.619164	0.0
0.853638	1.619137	0.0
0.855209	1.61911	0.0
0.856781	1.619083	0.0
0.858352	1.619056	0.0
0.859923	1.61903	0.0
0.861495	1.619003	0.0
0.863066	1.618977	0.0
0.864637	1.61895	0.0
0.866208	1.618924	0.0
0.867778	1.618899	0.0
0.869349	1.618873	0.0
0.87092	1.618847	0.0
0.87249	1.618822	0.0
0.874061	1.618796	0.0
0.875631	1.618771	0.0
0.877201	1.618746	0.0
0.878771	1.618721	0.0
0.880341	1.618697	0.0
0.881911	1.618672	0.0
0.883481	1.618647	0.0
0.88505	1.618623	0.0
0.88662	1.618599	0.0
0.888189	1.618575	0.0
0.889759	1.618551	0.0
0.891328	1.618527	0.0
0.892897	1.618503	0.0
0.894466	1.61848	0.0
0.896035	1.618456	0.0
0.897604	1.618433	0.0
0.899173	1.61841	0.0
0.900741	1.618387	0.0
0.90231	1.618364	0.0
0.903878	1.618341	0.0
0.905446	1.618318	0.0
0.907014	1.618296	0.0
0.908583	1.618273	0.0
0.910151	1.618251	0.0
0.911718	1.618229	0.0
0.913286	1.618207	0.0
0.914854	1.618185	0.0
0.916421	1.618163	0.0
0.917988	1.618141	0.0
0.919556	1.618119	0.0
0.921123	1.618098	0.0
0.92269	1.618076	0.0
0.924257	1.618055	0.0
0.925823	1.618034	0.0
0.92739	1.618013	0.0
0.928957	1.617992	0.0
0.930523	1.617971	0.0
0.932089	1.61795	0.0
0.933656	1.61793	0.0
0.935222	1.617909	0.0
0.936788	1.617889	0.0
0.938354	1.617869	0.0
0.939919	1.617848	0.0
0.941485	1.617828	0.0
0.94305	1.617808	0.0
0.944616	1.617788	0.0
0.946181	1.617769	0.0
0.947746	1.617749	0.0
0.949311	1.617729	0.0
0.950876	1.61771	0.0
0.952441	1.61769	0.0
0.954005	1.617671	0.0
0.95557	1.617652	0.0
0.957134	1.617633	0.0
0.958698	1.617614	0.0
0.960262	1.617595	0.0
0.961826	1.617576	0.0
0.96339	1.617557	0.0
0.964954	1.617539	0.0
0.966517	1.61752	0.0
0.968081	1.617502	0.0
0.969644	1.617483	0.0
0.971207	1.617465	0.0
0.972771	1.617447	0.0
0.974333	1.617429	0.0
0.975896	1.617411	0.0
0.977459	1.617393	0.0
0.979021	1.617375	0.0
0.980584	1.617357	0.0
0.982146	1.61734	0.0
0.983708	1.617322	0.0
0.98527	1.617305	0.0
0.986832	1.617288	0.0
0.988394	1.61727	0.0
0.989956	1.617253	0.0
0.991517	1.617236	0.0
0.993078	1.617219	0.0
0.99464	1.617202	0.0
0.996201	1.617185	0.0
0.997762	1.617168	0.0
0.999322	1.617152	0.0
1.011346	1.617026	0.0
1.014711	1.616991	0.0
1.018076	1.616957	0.0
1.021442	1.616923	0.0
1.024809	1.61689	0.0
1.028176	1.616857	0.0
1.031544	1.616824	0.0
1.034912	1.616791	0.0
1.038281	1.616759	0.0
1.041651	1.616727	0.0
1.045021	1.616696	0.0
1.048392	1.616665	0.0
1.051764	1.616634	0.0
1.055136	1.616603	0.0
1.058509	1.616572	0.0
1.061883	1.616542	0.0
1.065257	1.616513	0.0
1.068631	1.616483	0.0
1.072007	1.616454	0.0
1.075383	1.616425	0.0
1.07876	1.616396	0.0
1.082137	1.616368	0.0
1.085515	1.61634	0.0
1.088893	1.616312	0.0
1.092272	1.616284	0.0
1.095652	1.616257	0.0
1.099032	1.61623	0.0
1.102414	1.616203	0.0
1.105795	1.616176	0.0
1.109177	1.61615	0.0
1.11256	1.616123	0.0
1.115944	1.616097	0.0
1.119328	1.616072	0.0
1.122713	1.616046	0.0
1.126099	1.616021	0.0
1.129485	1.615996	0.0
1.132871	1.615971	0.0
1.136259	1.615947	0.0
1.139647	1.615922	0.0
1.143035	1.615898	0.0
1.146425	1.615874	0.0
1.149814	1.615851	0.0
1.153205	1.615827	0.0
1.156596	1.615804	0.0
1.159988	1.615781	0.0
1.16338	1.615758	0.0
1.166773	1.615735	0.0
1.170167	1.615712	0.0
1.173561	1.61569	0.0
1.176956	1.615668	0.0
1.180352	1.615646	0.0
1.183748	1.615624	0.0
1.187145	1.615603	0.0
1.190542	1.615581	0.0
1.19394	1.61556	0.0
1.197339	1.615539	0.0
1.200738	1.615518	0.0
1.204138	1.615498	0.0
1.207539	1.615477	0.0
1.21094	1.615457	0.0
1.214342	1.615437	0.0
1.217744	1.615417	0.0
1.221147	1.615397	0.0
1.224551	1.615377	0.0
1.227955	1.615358	0.0
1.23136	1.615338	0.0
1.234766	1.615319	0.0
1.238172	1.6153	0.0
1.241579	1.615281	0.0
1.244987	1.615262	0.0
1.248395	1.615244	0.0
1.251804	1.615225	0.0
1.255213	1.615207	0.0
1.258623	1.615189	0.0
1.262034	1.615171	0.0
1.265445	1.615153	0.0
1.268857	1.615135	0.0
1.27227	1.615118	0.0
1.275683	1.615101	0.0
1.279097	1.615083	0.0
1.282511	1.615066	0.0
1.285926	1.615049	0.0
1.289342	1.615032	0.0
1.292758	1.615015	0.0
1.296175	1.614999	0.0
1.299593	1.614982	0.0
1.303011	1.614966	0.0
1.30643	1.61495	0.0
1.309849	1.614934	0.0
1.313269	1.614918	0.0
1.31669	1.614902	0.0
1.320112	1.614886	0.0
1.323534	1.61487	0.0
1.326956	1.614855	0.0
1.33038	1.614839	0.0
1.333803	1.614824	0.0
1.337228	1.614809	0.0
1.340653	1.614794	0.0
1.344079	1.614779	0.0
1.347505	1.614764	0.0
1.350932	1.61475	0.0
1.35436	1.614735	0.0
1.357788	1.61472	0.0
1.361217	1.614706	0.0
1.364647	1.614692	0.0
1.368077	1.614678	0.0
1.371508	1.614664	0.0
1.374939	1.61465	0.0
1.378372	1.614636	0.0
1.381804	1.614622	0.0
1.385238	1.614608	0.0
1.388672	1.614595	0.0
1.392106	1.614581	0.0
1.395542	1.614568	0.0
1.398977	1.614555	0.0
1.402414	1.614542	0.0
1.405851	1.614529	0.0
1.409289	1.614516	0.0
1.412727	1.614503	0.0
1.416166	1.61449	0.0
1.419606	1.614477	0.0
1.423046	1.614465	0.0
1.426487	1.614452	0.0
1.429929	1.61444	0.0
1.433371	1.614427	0.0
1.436814	1.614415	0.0
1.440257	1.614403	0.0
1.443701	1.614391	0.0
1.447146	1.614379	0.0
1.450591	1.614367	0.0
1.454037	1.614355	0.0
1.457484	1.614343	0.0
1.460931	1.614332	0.0
1.464379	1.61432	0.0
1.467827	1.614309	0.0
1.471276	1.614297	0.0
1.474726	1.614286	0.0
1.478177	1.614275	0.0
1.481628	1.614263	0.0
1.485079	1.614252	0.0
1.488531	1.614241	0.0
1.491984	1.61423	0.0
1.495438	1.614219	0.0
1.498892	1.614208	0.0
1.502347	1.614198	0.0
1.505802	1.614187	0.0
1.509258	1.614177	0.0
1.512715	1.614166	0.0
1.516172	1.614156	0.0
1.51963	1.614145	0.0
1.523089	1.614135	0.0
1.526548	1.614125	0.0
1.530008	1.614114	0.0
1.533468	1.614104	0.0
1.536929	1.614094	0.0
1.540391	1.614084	0.0
1.543854	1.614074	0.0
1.547317	1.614064	0.0
1.55078	1.614055	0.0
1.554244	1.614045	0.0
1.557709	1.614035	0.0
1.561175	1.614026	0.0
1.564641	1.614016	0.0
1.568108	1.614007	0.0
1.571575	1.613997	0.0
1.575043	1.613988	0.0
1.578512	1.613979	0.0
1.581981	1.613969	0.0
1.585451	1.61396	0.0
1.588922	1.613951	0.0
1.592393	1.613942	0.0
1.595865	1.613933	0.0
1.599337	1.613924	0.0
1.60281	1.613915	0.0
1.606284	1.613906	0.0
1.609758	1.613898	0.0
1.613233	1.613889	0.0
1.616709	1.61388	0.0
1.620185	1.613872	0.0
1.623662	1.613863	0.0
1.627139	1.613855	0.0
1.630617	1.613846	0.0
1.634096	1.613838	0.0
1.637575	1.613829	0.0
1.641055	1.613821	0.0
1.644536	1.613813	0.0
1.648017	1.613805	0.0
1.651499	1.613797	0.0
1.654982	1.613788	0.0
1.658465	1.61378	0.0
1.661949	1.613773	0.0
1.665433	1.613765	0.0
1.668918	1.613757	0.0
1.672404	1.613749	0.0
1.67589	1.613741	0.0
1.679377	1.613733	0.0
1.682865	1.613726	0.0
1.686353	1.613718	0.0
1.689842	1.61371	0.0

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: —

Al₂O₃ (Aluminium sesquioxide, Sapphire, Alumina): all datasets

Crystal

Thin film

About Al2O3 (Aluminium sesquioxide, Sapphire, Alumina)

Al₂O₃, commonly known as alumina or aluminum oxide, is a ceramic material that has a wide range of applications due to its excellent mechanical and optical properties. This compound crystallizes in various phases, the most stable and common of which is the corundum structure. Alumina is transparent in the ultraviolet to the infrared range, making it a versatile material for a variety of optical applications such as protective windows and lenses. It has a high refractive index and is also known for its strong dielectric properties. One of the key attributes of Al₂O₃ is its remarkable thermal stability and resistance to chemical attack, which makes it suitable for harsh environment applications. Furthermore, the material has been investigated for its nonlinear optical characteristics, although it is generally less efficient in this regard compared to other nonlinear optical materials. Alumina can also serve as a substrate material for thin-film optical coatings. In summary, Al₂O₃ is a robust and multifunctional material that is extensively studied for its enduring relevance in both traditional and advanced optical systems. Mineral: Corundum Gemstones: Sapphire, Ruby

More about Al2O3 (Aluminium sesquioxide, Sapphire, Alumina) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/Al2O3/nk/Zhukovsky.yml
ID: ds_4e8a0a37e3c2
API: /v1/datasets/ds_4e8a0a37e3c2

Plot