Wavelength(m)	n	k
# material: GaN
# source: 1) T. Kawashima, H. Yoshikawa, S. Adachi. Optical properties of hexagonal GaN. J. Appl. Phys. 82, 3528-3535 (1997) 2) S. Logothetidis, J. Petalas, M. Cardona, T. D. Moustakas. Optical properties and temperature dependence of the interband transitions of cubic and hexagonal GaN. Phys. Rev. B 50, 18017-18029 (1994) * Authors of Ref. 1 provide a simplified model of the interband transitions (MDF) based on their experimental data combined with experimental data from Ref. 2. [Calculation script (Python)]
# conditions: Single-crystalline hexagonal GaN (-GaN) film on (0001) sapphire substrate. Ordinary ray (o, Ec). Room temperature.
# upstream: polyanskiy/refractiveindex.info-database@ff11b58 main/GaN/nk/Kawashima.yml
# type: tabulated nk
# range: 1.2398e-07 - 9.9187e-07 m
# converted: 2026-07-31 (wavelength um -> m)
1.239800e-07	0.90117	1.4895
1.242000e-07	0.90784	1.497
1.244200e-07	0.91466	1.5044
1.246400e-07	0.92162	1.5118
1.248600e-07	0.92873	1.5191
1.250800e-07	0.93599	1.5264
1.253000e-07	0.9434	1.5336
1.255200e-07	0.95096	1.5407
1.257500e-07	0.95867	1.5478
1.259700e-07	0.96654	1.5548
1.262000e-07	0.97455	1.5617
1.264200e-07	0.98272	1.5685
1.266500e-07	0.99104	1.5752
1.268800e-07	0.99951	1.5818
1.271000e-07	1.0081	1.5883
1.273300e-07	1.0169	1.5947
1.275600e-07	1.0258	1.601
1.277900e-07	1.0349	1.6071
1.280300e-07	1.0441	1.6131
1.282600e-07	1.0535	1.619
1.284900e-07	1.063	1.6247
1.287200e-07	1.0726	1.6302
1.289600e-07	1.0823	1.6356
1.291900e-07	1.0922	1.6408
1.294300e-07	1.1022	1.6458
1.296700e-07	1.1124	1.6507
1.299100e-07	1.1226	1.6553
1.301500e-07	1.1329	1.6597
1.303900e-07	1.1434	1.664
1.306300e-07	1.1539	1.668
1.308700e-07	1.1645	1.6718
1.311100e-07	1.1752	1.6753
1.313500e-07	1.186	1.6786
1.316000e-07	1.1968	1.6817
1.318400e-07	1.2076	1.6845
1.320900e-07	1.2185	1.6871
1.323400e-07	1.2294	1.6894
1.325900e-07	1.2403	1.6915
1.328400e-07	1.2512	1.6933
1.330900e-07	1.2621	1.6948
1.333400e-07	1.273	1.696
1.335900e-07	1.2838	1.697
1.338400e-07	1.2945	1.6978
1.341000e-07	1.3052	1.6982
1.343500e-07	1.3158	1.6984
1.346100e-07	1.3262	1.6983
1.348600e-07	1.3366	1.698
1.351200e-07	1.3468	1.6974
1.353800e-07	1.3569	1.6966
1.356400e-07	1.3668	1.6955
1.359000e-07	1.3765	1.6942
1.361600e-07	1.386	1.6927
1.364200e-07	1.3953	1.691
1.366900e-07	1.4044	1.689
1.369500e-07	1.4133	1.6869
1.372200e-07	1.4219	1.6846
1.374800e-07	1.4302	1.6822
1.377500e-07	1.4383	1.6796
1.380200e-07	1.4461	1.6769
1.382900e-07	1.4535	1.6741
1.385600e-07	1.4607	1.6712
1.388300e-07	1.4676	1.6682
1.391100e-07	1.4742	1.6652
1.393800e-07	1.4804	1.6621
1.396600e-07	1.4863	1.6591
1.399300e-07	1.492	1.6561
1.402100e-07	1.4972	1.6531
1.404900e-07	1.5022	1.6501
1.407700e-07	1.5068	1.6473
1.410500e-07	1.5112	1.6446
1.413300e-07	1.5152	1.642
1.416200e-07	1.5189	1.6395
1.419000e-07	1.5223	1.6373
1.421800e-07	1.5254	1.6352
1.424700e-07	1.5283	1.6333
1.427600e-07	1.5309	1.6317
1.430500e-07	1.5332	1.6304
1.433400e-07	1.5354	1.6294
1.436300e-07	1.5373	1.6286
1.439200e-07	1.539	1.6282
1.442100e-07	1.5405	1.6281
1.445100e-07	1.542	1.6284
1.448100e-07	1.5432	1.6291
1.451000e-07	1.5444	1.6302
1.454000e-07	1.5455	1.6317
1.457000e-07	1.5466	1.6336
1.460000e-07	1.5477	1.636
1.463000e-07	1.5488	1.6388
1.466100e-07	1.55	1.6421
1.469100e-07	1.5512	1.6458
1.472200e-07	1.5526	1.65
1.475200e-07	1.5542	1.6547
1.478300e-07	1.556	1.6599
1.481400e-07	1.5581	1.6655
1.484500e-07	1.5605	1.6716
1.487700e-07	1.5633	1.6781
1.490800e-07	1.5665	1.6851
1.493900e-07	1.5702	1.6925
1.497100e-07	1.5744	1.7002
1.500300e-07	1.5792	1.7083
1.503500e-07	1.5847	1.7167
1.506700e-07	1.5908	1.7254
1.509900e-07	1.5977	1.7342
1.513100e-07	1.6053	1.7431
1.516400e-07	1.6138	1.7521
1.519600e-07	1.6232	1.761
1.522900e-07	1.6334	1.7697
1.526200e-07	1.6445	1.7781
1.529500e-07	1.6565	1.7862
1.532800e-07	1.6694	1.7936
1.536100e-07	1.6831	1.8005
1.539500e-07	1.6975	1.8065
1.542800e-07	1.7125	1.8116
1.546200e-07	1.728	1.8157
1.549600e-07	1.7439	1.8187
1.553000e-07	1.76	1.8204
1.556400e-07	1.7761	1.821
1.559900e-07	1.7919	1.8203
1.563300e-07	1.8074	1.8185
1.566800e-07	1.8222	1.8156
1.570300e-07	1.8362	1.8117
1.573800e-07	1.8493	1.807
1.577300e-07	1.8613	1.8017
1.580800e-07	1.8722	1.796
1.584300e-07	1.882	1.79
1.587900e-07	1.8905	1.784
1.591500e-07	1.8979	1.7783
1.595100e-07	1.9043	1.7729
1.598700e-07	1.9098	1.7681
1.602300e-07	1.9144	1.7639
1.605900e-07	1.9183	1.7605
1.609600e-07	1.9217	1.758
1.613200e-07	1.9247	1.7563
1.616900e-07	1.9275	1.7556
1.620600e-07	1.9302	1.7558
1.624400e-07	1.9329	1.757
1.628100e-07	1.9358	1.759
1.631900e-07	1.939	1.7618
1.635600e-07	1.9425	1.7654
1.639400e-07	1.9464	1.7698
1.643200e-07	1.9509	1.7748
1.647100e-07	1.956	1.7804
1.650900e-07	1.9616	1.7865
1.654800e-07	1.968	1.7931
1.658700e-07	1.9751	1.8001
1.662600e-07	1.983	1.8073
1.666500e-07	1.9916	1.8148
1.670400e-07	2.0009	1.8225
1.674400e-07	2.0111	1.8303
1.678300e-07	2.0221	1.8381
1.682300e-07	2.0339	1.846
1.686400e-07	2.0465	1.8537
1.690400e-07	2.0599	1.8613
1.694400e-07	2.0741	1.8687
1.698500e-07	2.0891	1.8758
1.702600e-07	2.1049	1.8826
1.706700e-07	2.1213	1.8891
1.710800e-07	2.1386	1.8951
1.715000e-07	2.1565	1.9007
1.719200e-07	2.1751	1.9057
1.723300e-07	2.1944	1.9102
1.727600e-07	2.2143	1.9141
1.731800e-07	2.2348	1.9173
1.736000e-07	2.2558	1.9198
1.740300e-07	2.2773	1.9216
1.744600e-07	2.2994	1.9226
1.748900e-07	2.3218	1.9227
1.753300e-07	2.3446	1.9221
1.757600e-07	2.3677	1.9205
1.762000e-07	2.3911	1.9181
1.766400e-07	2.4147	1.9147
1.770800e-07	2.4385	1.9104
1.775300e-07	2.4624	1.9051
1.779700e-07	2.4863	1.8988
1.784200e-07	2.5102	1.8916
1.788700e-07	2.534	1.8834
1.793300e-07	2.5577	1.8742
1.797800e-07	2.5812	1.8641
1.802400e-07	2.6044	1.853
1.807000e-07	2.6273	1.8409
1.811700e-07	2.6498	1.828
1.816300e-07	2.6718	1.8141
1.821000e-07	2.6934	1.7994
1.825700e-07	2.7144	1.7839
1.830400e-07	2.7348	1.7675
1.835200e-07	2.7546	1.7505
1.839900e-07	2.7737	1.7327
1.844700e-07	2.7921	1.7143
1.849600e-07	2.8097	1.6953
1.854400e-07	2.8266	1.6757
1.859300e-07	2.8426	1.6556
1.864200e-07	2.8579	1.6351
1.869100e-07	2.8723	1.6142
1.874100e-07	2.8859	1.593
1.879100e-07	2.8986	1.5714
1.884100e-07	2.9105	1.5497
1.889100e-07	2.9215	1.5278
1.894200e-07	2.9317	1.5057
1.899300e-07	2.941	1.4835
1.904400e-07	2.9495	1.4614
1.909500e-07	2.9573	1.4392
1.914700e-07	2.9642	1.417
1.919900e-07	2.9704	1.395
1.925100e-07	2.9758	1.3731
1.930400e-07	2.9805	1.3513
1.935600e-07	2.9845	1.3298
1.941000e-07	2.9878	1.3084
1.946300e-07	2.9905	1.2873
1.951700e-07	2.9926	1.2665
1.957100e-07	2.9941	1.246
1.962500e-07	2.995	1.2257
1.968000e-07	2.9954	1.2058
1.973500e-07	2.9953	1.1862
1.979000e-07	2.9947	1.167
1.984500e-07	2.9936	1.1481
1.990100e-07	2.9922	1.1296
1.995700e-07	2.9903	1.1114
2.001400e-07	2.9881	1.0937
2.007100e-07	2.9856	1.0763
2.012800e-07	2.9827	1.0593
2.018500e-07	2.9795	1.0426
2.024300e-07	2.976	1.0264
2.030100e-07	2.9723	1.0105
2.036000e-07	2.9683	0.99501
2.041900e-07	2.9642	0.9799
2.047800e-07	2.9598	0.96515
2.053700e-07	2.9552	0.95077
2.059700e-07	2.9505	0.93674
2.065700e-07	2.9456	0.92308
2.071800e-07	2.9406	0.90976
2.077900e-07	2.9355	0.89679
2.084000e-07	2.9303	0.88415
2.090100e-07	2.925	0.87185
2.096300e-07	2.9196	0.85987
2.102600e-07	2.9141	0.8482
2.108800e-07	2.9086	0.83685
2.115100e-07	2.903	0.82579
2.121500e-07	2.8974	0.81504
2.127900e-07	2.8917	0.80457
2.134300e-07	2.886	0.79438
2.140800e-07	2.8803	0.78446
2.147300e-07	2.8746	0.77481
2.153800e-07	2.8689	0.76542
2.160400e-07	2.8632	0.75629
2.167000e-07	2.8575	0.7474
2.173700e-07	2.8518	0.73875
2.180400e-07	2.8461	0.73033
2.187100e-07	2.8404	0.72213
2.193900e-07	2.8348	0.71416
2.200700e-07	2.8292	0.7064
2.207600e-07	2.8236	0.69885
2.214500e-07	2.8181	0.69149
2.221500e-07	2.8126	0.68434
2.228500e-07	2.8072	0.67737
2.235500e-07	2.8018	0.67058
2.242600e-07	2.7964	0.66398
2.249700e-07	2.7911	0.65754
2.256900e-07	2.7859	0.65128
2.264200e-07	2.7807	0.64517
2.271400e-07	2.7756	0.63923
2.278800e-07	2.7705	0.63343
2.286100e-07	2.7655	0.62779
2.293500e-07	2.7605	0.62229
2.301000e-07	2.7556	0.61692
2.308500e-07	2.7508	0.61169
2.316100e-07	2.746	0.6066
2.323700e-07	2.7413	0.60163
2.331300e-07	2.7366	0.59678
2.339100e-07	2.7321	0.59205
2.346800e-07	2.7276	0.58743
2.354600e-07	2.7231	0.58292
2.362500e-07	2.7187	0.57853
2.370400e-07	2.7144	0.57423
2.378400e-07	2.7102	0.57004
2.386400e-07	2.706	0.56594
2.394500e-07	2.7019	0.56194
2.402600e-07	2.6979	0.55803
2.410800e-07	2.6939	0.55421
2.419100e-07	2.69	0.55047
2.427400e-07	2.6862	0.54681
2.435800e-07	2.6824	0.54324
2.444200e-07	2.6787	0.53974
2.452700e-07	2.6751	0.53631
2.461200e-07	2.6715	0.53295
2.469800e-07	2.668	0.52966
2.478400e-07	2.6646	0.52644
2.487200e-07	2.6613	0.52328
2.495900e-07	2.658	0.52018
2.504800e-07	2.6548	0.51715
2.513700e-07	2.6516	0.51416
2.522700e-07	2.6485	0.51123
2.531700e-07	2.6455	0.50836
2.540800e-07	2.6426	0.50553
2.549900e-07	2.6397	0.50275
2.559200e-07	2.6369	0.50001
2.568500e-07	2.6342	0.49732
2.577800e-07	2.6315	0.49467
2.587300e-07	2.6289	0.49206
2.596800e-07	2.6263	0.48949
2.606300e-07	2.6238	0.48695
2.616000e-07	2.6214	0.48444
2.625700e-07	2.6191	0.48197
2.635500e-07	2.6168	0.47953
2.645300e-07	2.6146	0.47711
2.655300e-07	2.6124	0.47472
2.665300e-07	2.6103	0.47235
2.675400e-07	2.6083	0.47001
2.685500e-07	2.6063	0.46768
2.695800e-07	2.6044	0.46538
2.706100e-07	2.6026	0.46309
2.716500e-07	2.6008	0.46081
2.727000e-07	2.5991	0.45855
2.737500e-07	2.5974	0.4563
2.748200e-07	2.5958	0.45406
2.758900e-07	2.5943	0.45183
2.769700e-07	2.5928	0.4496
2.780600e-07	2.5914	0.44737
2.791600e-07	2.59	0.44515
2.802600e-07	2.5887	0.44293
2.813800e-07	2.5875	0.4407
2.825000e-07	2.5863	0.43848
2.836400e-07	2.5852	0.43624
2.847800e-07	2.5841	0.434
2.859300e-07	2.5831	0.43175
2.870900e-07	2.5822	0.42949
2.882600e-07	2.5813	0.42722
2.894400e-07	2.5804	0.42493
2.906300e-07	2.5796	0.42262
2.918300e-07	2.5789	0.42029
2.930400e-07	2.5782	0.41794
2.942600e-07	2.5776	0.41556
2.954900e-07	2.577	0.41316
2.967300e-07	2.5765	0.41073
2.979800e-07	2.576	0.40827
2.992400e-07	2.5755	0.40577
3.005100e-07	2.5752	0.40324
3.018000e-07	2.5748	0.40067
3.030900e-07	2.5745	0.39805
3.043900e-07	2.5743	0.39539
3.057100e-07	2.574	0.39269
3.070400e-07	2.5739	0.38993
3.083800e-07	2.5737	0.38712
3.097300e-07	2.5736	0.38426
3.110900e-07	2.5735	0.38133
3.124700e-07	2.5735	0.37834
3.138500e-07	2.5735	0.37529
3.152500e-07	2.5735	0.37216
3.166600e-07	2.5735	0.36896
3.180900e-07	2.5735	0.36568
3.195300e-07	2.5735	0.36232
3.209800e-07	2.5736	0.35888
3.224400e-07	2.5736	0.35535
3.239200e-07	2.5736	0.35172
3.254100e-07	2.5736	0.348
3.269100e-07	2.5736	0.34418
3.284300e-07	2.5735	0.34026
3.299600e-07	2.5734	0.33623
3.315100e-07	2.5732	0.33209
3.330700e-07	2.5729	0.32784
3.346500e-07	2.5725	0.32349
3.362400e-07	2.572	0.31903
3.378500e-07	2.5713	0.31446
3.394700e-07	2.5704	0.30981
3.411100e-07	2.5692	0.30509
3.427600e-07	2.5678	0.30031
3.444300e-07	2.566	0.29552
3.461200e-07	2.5637	0.29078
3.478200e-07	2.561	0.28618
3.495400e-07	2.5576	0.28184
3.512700e-07	2.5535	0.27797
3.530300e-07	2.5485	0.27487
3.548000e-07	2.5426	0.27302
3.565900e-07	2.5357	0.27317
3.584000e-07	2.5281	0.27642
3.602200e-07	2.5209	0.28438
3.620700e-07	2.5167	0.29889
3.639300e-07	2.5209	0.32053
3.658100e-07	2.5416	0.34447
3.677200e-07	2.5822	0.35646
3.696400e-07	2.6297	0.34124
3.715800e-07	2.662	0.30206
3.735400e-07	2.6712	0.25722
3.755300e-07	2.6645	0.21928
3.775300e-07	2.6504	0.19083
3.795600e-07	2.6342	0.17019
3.816100e-07	2.6181	0.15514
3.836800e-07	2.603	0.14394
3.857700e-07	2.5891	0.1354
3.878900e-07	2.5763	0.12871
3.900300e-07	2.5647	0.12335
3.921900e-07	2.5539	0.11895
3.943800e-07	2.544	0.11527
3.965900e-07	2.5347	0.11213
3.988300e-07	2.5261	0.10942
4.010900e-07	2.518	0.10704
4.033800e-07	2.5103	0.10493
4.056900e-07	2.5031	0.10303
4.080300e-07	2.4962	0.1013
4.104000e-07	2.4897	0.099718
4.128000e-07	2.4835	0.098259
4.152200e-07	2.4775	0.096903
4.176800e-07	2.4718	0.095635
4.201600e-07	2.4662	0.094443
4.226700e-07	2.4609	0.093316
4.252100e-07	2.4558	0.092247
4.277800e-07	2.4508	0.091228
4.303900e-07	2.446	0.090255
4.330200e-07	2.4413	0.089321
4.356900e-07	2.4367	0.088424
4.383900e-07	2.4323	0.087559
4.411300e-07	2.428	0.086723
4.439000e-07	2.4238	0.085914
4.467000e-07	2.4197	0.08513
4.495400e-07	2.4157	0.084367
4.524200e-07	2.4118	0.083626
4.553300e-07	2.408	0.082904
4.582800e-07	2.4042	0.0822
4.612700e-07	2.4006	0.081512
4.643000e-07	2.397	0.08084
4.673700e-07	2.3935	0.080182
4.704800e-07	2.39	0.079539
4.736300e-07	2.3866	0.078908
4.768300e-07	2.3833	0.078289
4.800600e-07	2.3801	0.077682
4.833400e-07	2.3768	0.077086
4.866700e-07	2.3737	0.076501
4.900400e-07	2.3706	0.075925
4.934600e-07	2.3675	0.075359
4.969300e-07	2.3645	0.074802
5.004500e-07	2.3616	0.074254
5.040200e-07	2.3587	0.073715
5.076400e-07	2.3558	0.073183
5.113100e-07	2.353	0.072659
5.150300e-07	2.3502	0.072143
5.188100e-07	2.3474	0.071634
5.226500e-07	2.3447	0.071132
5.265400e-07	2.3421	0.070637
5.304900e-07	2.3394	0.070149
5.345000e-07	2.3368	0.069667
5.385700e-07	2.3342	0.069191
5.427000e-07	2.3317	0.068721
5.469000e-07	2.3292	0.068257
5.511600e-07	2.3267	0.067798
5.554900e-07	2.3243	0.067346
5.598900e-07	2.3219	0.066898
5.643600e-07	2.3195	0.066456
5.689000e-07	2.3172	0.066019
5.735200e-07	2.3148	0.065587
5.782100e-07	2.3125	0.06516
5.829700e-07	2.3103	0.064738
5.878200e-07	2.308	0.06432
5.927500e-07	2.3058	0.063907
5.977600e-07	2.3036	0.063499
6.028600e-07	2.3014	0.063094
6.080400e-07	2.2993	0.062695
6.133100e-07	2.2972	0.062299
6.186800e-07	2.2951	0.061907
6.241400e-07	2.293	0.06152
6.297000e-07	2.2909	0.061137
6.353600e-07	2.2889	0.060757
6.411200e-07	2.2869	0.060381
6.469900e-07	2.2849	0.060009
6.529600e-07	2.2829	0.059641
6.590500e-07	2.281	0.059276
6.652500e-07	2.279	0.058915
6.715700e-07	2.2771	0.058558
6.780100e-07	2.2752	0.058203
6.845700e-07	2.2734	0.057853
6.912600e-07	2.2715	0.057505
6.980900e-07	2.2697	0.057161
7.050500e-07	2.2678	0.05682
7.121500e-07	2.266	0.056482
7.194000e-07	2.2642	0.056148
7.267900e-07	2.2625	0.055816
7.343400e-07	2.2607	0.055487
7.420500e-07	2.259	0.055162
7.499200e-07	2.2573	0.054839
7.579600e-07	2.2556	0.054519
7.661700e-07	2.2539	0.054203
7.745600e-07	2.2522	0.053888
7.831400e-07	2.2505	0.053577
7.919100e-07	2.2489	0.053268
8.008800e-07	2.2473	0.052963
8.100600e-07	2.2457	0.052659
8.194500e-07	2.2441	0.052359
8.290500e-07	2.2425	0.052061
8.388900e-07	2.2409	0.051765
8.489600e-07	2.2393	0.051472
8.592800e-07	2.2378	0.051182
8.698500e-07	2.2363	0.050893
8.806800e-07	2.2348	0.050608
8.917900e-07	2.2333	0.050324
9.031800e-07	2.2318	0.050043
9.148700e-07	2.2303	0.049765
9.268600e-07	2.2288	0.049488
9.391700e-07	2.2274	0.049214
9.518200e-07	2.2259	0.048942
9.648000e-07	2.2245	0.048673
9.781500e-07	2.2231	0.048405
9.918700e-07	2.2217	0.04814
