Optical constants

Refractive index of CeF₃ (Cerium trifluoride)

Rodríguez-de Marcos et al. 2017: n,k 0.03–2.0 µm

Data: tabulated nk
Range: 0.0298–2.017 µm
Points: 482
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.62897
Extinction coefficient k: 0.00348362

Permittivity ε₁: 2.65352
Permittivity ε₂: 0.0113494

Absorption coefficient α: 745.004 cm⁻¹
Penetration depth δ = λ/(2πk): 26845.5 nm

Abbe number V_d: —
Chromatic dispersion dn/dλ: -0.045155 µm⁻¹

Group index n_g: 1.6555
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

# CeF3 (Cerium trifluoride): Rodríguez-de Marcos et al. 2017: n,k 0.03–2.0 µm
cef3 = ls.fetch_refractiveindex("main", "CeF3", "Rodriguez-de_Marcos", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(cef3.range_nm)  # (29.7987, 2017) nm
eps = cef3.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_83eb2f3a9dee/lightsmith"
cef3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(cef3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (cef3/rodriguez-de-marcos-2017).

# ... load cef3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=cef3)],
    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

40 nm film prepared by evaporation from tungsten boat at 250 °C

Conditions

deposition temperature: 523

References

L. V. Rodríguez-de Marcos, J. I. Larruquert, J. A. Méndez, J. A. Aznárez. Self-consistent optical constants of MgF₂, LaF₃, and CeF₃ films. Opt. Mater. Express 7, 989-1006 (2017) (Numerical data kindly provided by Juan Larruquert)

doi:10.1364/ome.7.000989 Self-consistent optical constants of MgF_2, LaF_3, and CeF_3 films, Optical Materials Express (2017)

Cite

Luis V. Rodríguez-de Marcos, Juan I. Larruquert, José A. Méndez and José A. Aznárez. Self-consistent optical constants of MgF_2, LaF_3, and CeF_3 films. Optical Materials Express, 7, 989 (2017), doi:10.1364/ome.7.000989; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

482 rows as published

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

CeF3 (Cerium trifluoride), Rodríguez-de Marcos et al. 2017: n,k 0.03–2.0 µm: n and k versus wavelength
λ (µm)	n	k
0.0297987	0.902989	0.17452
0.030061	0.906619	0.177592
0.0303255	0.910635	0.180007
0.0305924	0.914945	0.181712
0.0308617	0.919462	0.182661
0.0311333	0.92411	0.182814
0.0314073	0.928811	0.182131
0.0316837	0.93349	0.180569
0.0319626	0.938071	0.178083
0.0322439	0.942477	0.174617
0.0325277	0.946624	0.170109
0.032814	0.950421	0.164475
0.0331028	0.953767	0.157606
0.0333941	0.956539	0.149351
0.0336881	0.958575	0.139488
0.0339846	0.959637	0.127661
0.0342837	0.959297	0.113247
0.0345854	0.956454	0.094924
0.0348898	0.94704	0.06979
0.0351969	0.929027	0.047971
0.0355067	0.906162	0.033801
0.0358192	0.880966	0.023616
0.0361344	0.853729	0.01776
0.0364524	0.825275	0.016773
0.0367733	0.796576	0.020428
0.0370969	0.768364	0.028238
0.0374234	0.741129	0.039684
0.0377528	0.715181	0.054286
0.0380851	0.690709	0.071631
0.0384203	0.667814	0.091375
0.0387584	0.646546	0.113246
0.0390995	0.626917	0.137035
0.0394437	0.608924	0.16259
0.0397908	0.592559	0.189819
0.040141	0.577814	0.218682
0.0404943	0.564699	0.249193
0.0408507	0.553247	0.281428
0.0412103	0.543534	0.315536
0.041573	0.535702	0.351759
0.0419389	0.530018	0.390487
0.042308	0.527047	0.432393
0.0426804	0.528277	0.478629
0.043056	0.535547	0.52792
0.0434349	0.54976	0.578087
0.0438172	0.571128	0.627629
0.0442029	0.599742	0.675233
0.0445919	0.635637	0.719442
0.0449844	0.678556	0.758255
0.0453803	0.727361	0.789054
0.0457797	0.780005	0.810245
0.0461826	0.83466	0.821924
0.0465891	0.889718	0.823077
0.0469991	0.942735	0.812319
0.0474128	0.989598	0.788364
0.0478301	1.025357	0.754171
0.0482511	1.048071	0.718309
0.0486757	1.059559	0.686328
0.0491041	1.062678	0.660964
0.0495363	1.060362	0.643855
0.0499723	1.055692	0.635941
0.0504121	1.052473	0.637863
0.0508558	1.05439	0.646493
0.0513034	1.062166	0.655513
0.0517549	1.074073	0.662476
0.0522105	1.088472	0.666896
0.05267	1.103992	0.668386
0.0531335	1.119211	0.667252
0.0536012	1.133685	0.66576
0.0540729	1.147989	0.664509
0.0545489	1.162682	0.663587
0.055029	1.178305	0.662987
0.0555133	1.195578	0.662652
0.0560019	1.215535	0.662003
0.0564948	1.238362	0.65807
0.056992	1.262677	0.648788
0.0574936	1.28673	0.633897
0.0579996	1.308931	0.613327
0.0585101	1.327541	0.587301
0.059025	1.340532	0.556715
0.0595445	1.346662	0.525078
0.0600686	1.346971	0.496523
0.0605973	1.343581	0.471738
0.0611306	1.338064	0.450503
0.0616687	1.331615	0.432522
0.0622114	1.325354	0.417362
0.062759	1.32057	0.404256
0.0633113	1.317707	0.390039
0.0638685	1.315142	0.371587
0.0644307	1.310446	0.348903
0.0649977	1.301708	0.322782
0.0655698	1.287232	0.294101
0.0661469	1.265068	0.264085
0.0667291	1.232628	0.235221
0.0673164	1.191357	0.218629
0.0679089	1.147219	0.216684
0.0685065	1.105049	0.227413
0.0691095	1.06832	0.249093
0.0697177	1.040516	0.279629
0.0703313	1.024795	0.313967
0.0709504	1.019234	0.340174
0.0715748	1.017922	0.356558
0.0722048	1.016223	0.364054
0.0728403	1.009457	0.363278
0.0734813	0.994626	0.361809
0.0741281	0.975017	0.36914
0.0747805	0.955515	0.38215
0.0754387	0.937056	0.397077
0.0761026	0.919034	0.413325
0.0767724	0.900777	0.430374
0.0774481	0.880868	0.447858
0.0781298	0.858709	0.46934
0.0788174	0.835808	0.497276
0.0795111	0.814129	0.531841
0.0802109	0.795367	0.573111
0.0809169	0.782302	0.622127
0.081629	0.778093	0.675267
0.0823475	0.779626	0.721661
0.0830722	0.78529	0.772351
0.0838034	0.797412	0.821432
0.084541	0.813253	0.86498
0.085285	0.83135	0.908403
0.0860356	0.853571	0.952049
0.0867929	0.881106	0.992858
0.0875568	0.91112	1.024024
0.0883274	0.93461	1.043371
0.0891048	0.956522	1.081614
0.089889	0.986166	1.116118
0.0906801	1.009125	1.129966
0.0914782	1.028494	1.174331
0.0922834	1.065268	1.22901
0.0930956	1.114571	1.260572
0.0939149	1.159285	1.272072
0.0947415	1.192874	1.282343
0.0955754	1.2222	1.305914
0.0964166	1.255395	1.335823
0.0972651	1.292734	1.364411
0.0981212	1.331957	1.392649
0.0989848	1.373795	1.424598
0.099856	1.422848	1.461906
0.100735	1.479272	1.491262
0.101621	1.528927	1.502639
0.102516	1.575203	1.545102
0.103418	1.645442	1.61349
0.104328	1.742456	1.659039
0.105247	1.849046	1.679605
0.106173	1.958815	1.689417
0.107107	2.073007	1.689594
0.10805	2.192349	1.680019
0.109001	2.317764	1.66072
0.10996	2.451961	1.63296
0.110928	2.606518	1.601785
0.111904	2.789071	1.532239
0.112889	2.979064	1.378711
0.113883	3.129088	1.121894
0.114885	3.194197	0.80213
0.115896	3.160915	0.48231
0.116916	3.008886	0.170423
0.117945	2.82226	0.106103
0.118984	2.6853	0.061367
0.120031	2.57573	0.046519
0.121087	2.49018	0.037619
0.122153	2.420064	0.031343
0.123228	2.361133	0.027656
0.124313	2.310391	0.024001
0.125407	2.265993	0.022453
0.12651	2.227236	0.021295
0.127624	2.192861	0.020146
0.128747	2.161964	0.01914
0.12988	2.134083	0.018417
0.131023	2.108705	0.017393
0.132177	2.084974	0.016006
0.13334	2.062973	0.016054
0.134513	2.043002	0.016101
0.135697	2.024676	0.016147
0.136892	2.0078	0.016194
0.138096	1.992301	0.01624
0.139312	1.97793	0.015775
0.140538	1.964289	0.014966
0.141775	1.951228	0.014164
0.143023	1.938736	0.013441
0.144281	1.926878	0.012972
0.145551	1.915678	0.012508
0.146832	1.905059	0.012047
0.148125	1.894935	0.011528
0.149428	1.885207	0.011007
0.150744	1.875975	0.010782
0.15207	1.867319	0.010431
0.153409	1.858978	0.009671
0.154759	1.850773	0.008929
0.156121	1.84278	0.008321
0.157495	1.835022	0.007718
0.158881	1.827435	0.00712
0.16028	1.819967	0.006589
0.16169	1.812646	0.00626
0.163113	1.805402	0.005933
0.164549	1.798257	0.006103
0.165997	1.791446	0.006767
0.167458	1.785382	0.008077
0.168932	1.779897	0.008527
0.170419	1.774608	0.008973
0.171919	1.769571	0.009172
0.173432	1.764422	0.008721
0.174958	1.758692	0.008274
0.176498	1.753401	0.010098
0.178052	1.749426	0.011278
0.179619	1.744999	0.009746
0.1812	1.739922	0.010385
0.182794	1.735291	0.011002
0.184403	1.730863	0.011612
0.186026	1.726541	0.012217
0.187663	1.722393	0.013092
0.189315	1.718551	0.014002
0.190981	1.715	0.014745
0.192662	1.711425	0.014848
0.194358	1.707605	0.015006
0.196068	1.703629	0.015236
0.197794	1.699503	0.015558
0.199535	1.695206	0.016008
0.201291	1.690701	0.016634
0.203063	1.685934	0.017516
0.20485	1.68084	0.018791
0.206653	1.675352	0.020695
0.208472	1.669462	0.023678
0.210307	1.663402	0.028594
0.212157	1.658281	0.037061
0.214025	1.657415	0.050885
0.215908	1.664827	0.06524
0.217809	1.675743	0.063646
0.219726	1.679847	0.051127
0.22166	1.675761	0.042657
0.22361	1.668007	0.04042
0.225579	1.659547	0.04371
0.227564	1.652901	0.053289
0.229567	1.652597	0.069716
0.231587	1.661288	0.083019
0.233626	1.670681	0.078277
0.235682	1.671639	0.069237
0.237756	1.666528	0.068564
0.239849	1.661613	0.077099
0.24196	1.66219	0.093663
0.244089	1.673025	0.113861
0.246237	1.694492	0.125668
0.248405	1.71845	0.118135
0.250591	1.734761	0.096921
0.252796	1.740733	0.074805
0.255021	1.739734	0.057542
0.257266	1.735495	0.045289
0.25953	1.730171	0.036691
0.261814	1.724744	0.030607
0.264119	1.719604	0.026177
0.266443	1.714867	0.022877
0.268788	1.710549	0.020365
0.271154	1.70662	0.018397
0.27354	1.703036	0.016833
0.275948	1.699756	0.015559
0.278377	1.696738	0.014511
0.280827	1.693951	0.013634
0.283298	1.691363	0.012888
0.285792	1.688952	0.012251
0.288307	1.686695	0.011695
0.290845	1.684575	0.011209
0.293404	1.682577	0.010781
0.295987	1.680689	0.010397
0.298592	1.678899	0.010053
0.30122	1.677198	0.009743
0.303871	1.675577	0.00946
0.306545	1.674031	0.009202
0.309243	1.672552	0.008963
0.311965	1.671136	0.008743
0.314711	1.669777	0.008539
0.317481	1.668471	0.008349
0.320275	1.667215	0.00817
0.323094	1.666005	0.008003
0.325937	1.664838	0.007845
0.328806	1.663711	0.007696
0.3317	1.662623	0.007555
0.334619	1.66157	0.00742
0.337564	1.660551	0.007292
0.340535	1.659565	0.00717
0.343533	1.658608	0.007052
0.346556	1.657681	0.00694
0.349606	1.65678	0.006832
0.352683	1.655906	0.006728
0.355787	1.655057	0.006628
0.358919	1.654231	0.006532
0.362078	1.653428	0.006438
0.365264	1.652647	0.006348
0.368479	1.651887	0.00626
0.371722	1.651147	0.006176
0.374994	1.650426	0.006093
0.378294	1.649723	0.006013
0.381624	1.649039	0.005935
0.384983	1.648371	0.005859
0.388371	1.64772	0.005785
0.391789	1.647085	0.005713
0.395237	1.646465	0.005642
0.398716	1.645861	0.005573
0.402225	1.64527	0.005506
0.405765	1.644694	0.00544
0.409337	1.644131	0.005376
0.412939	1.643581	0.005313
0.416574	1.643043	0.005251
0.42024	1.642518	0.005191
0.423939	1.642005	0.005131
0.42767	1.641503	0.005073
0.431434	1.641012	0.005016
0.435231	1.640533	0.00496
0.439062	1.640064	0.004905
0.442926	1.639605	0.004851
0.446824	1.639156	0.004798
0.450757	1.638717	0.004745
0.454724	1.638287	0.004694
0.458726	1.637866	0.004644
0.462764	1.637455	0.004594
0.466837	1.637052	0.004545
0.470946	1.636657	0.004497
0.47509	1.636271	0.00445
0.479272	1.635893	0.004403
0.48349	1.635523	0.004357
0.487745	1.63516	0.004312
0.492038	1.634805	0.004267
0.496369	1.634457	0.004223
0.500738	1.634116	0.00418
0.505145	1.633782	0.004137
0.509591	1.633455	0.004095
0.514076	1.633135	0.004054
0.5186	1.632821	0.004013
0.523165	1.632513	0.003972
0.527769	1.632212	0.003933
0.532414	1.631916	0.003893
0.5371	1.631626	0.003854
0.541827	1.631343	0.003816
0.546596	1.631064	0.003778
0.551407	1.630791	0.003741
0.55626	1.630524	0.003704
0.561156	1.630262	0.003668
0.566095	1.630005	0.003632
0.571077	1.629753	0.003596
0.576103	1.629505	0.003561
0.581174	1.629263	0.003527
0.586289	1.629025	0.003492
0.591449	1.628792	0.003459
0.596654	1.628563	0.003425
0.601906	1.628339	0.003392
0.607203	1.628119	0.00336
0.612547	1.627904	0.003327
0.617938	1.627692	0.003295
0.623377	1.627484	0.003264
0.628864	1.627281	0.003233
0.634398	1.627081	0.003202
0.639982	1.626885	0.003172
0.645615	1.626693	0.003142
0.651297	1.626504	0.003112
0.657029	1.626319	0.003082
0.662812	1.626138	0.003053
0.668645	1.625959	0.003024
0.67453	1.625784	0.002996
0.680467	1.625613	0.002968
0.686456	1.625445	0.00294
0.692498	1.625279	0.002912
0.698593	1.625117	0.002885
0.704741	1.624958	0.002858
0.710944	1.624802	0.002832
0.717201	1.624649	0.002805
0.723513	1.624499	0.002779
0.729881	1.624351	0.002753
0.736305	1.624206	0.002728
0.742786	1.624064	0.002702
0.749323	1.623924	0.002677
0.755918	1.623787	0.002653
0.762571	1.623653	0.002628
0.769283	1.623521	0.002604
0.776053	1.623391	0.00258
0.782884	1.623264	0.002556
0.789774	1.623139	0.002533
0.796725	1.623017	0.002509
0.803737	1.622896	0.002486
0.810811	1.622778	0.002464
0.817947	1.622662	0.002441
0.825146	1.622548	0.002419
0.832409	1.622437	0.002397
0.839735	1.622327	0.002375
0.847126	1.622219	0.002353
0.854582	1.622113	0.002332
0.862103	1.622009	0.00231
0.869691	1.621907	0.002289
0.877345	1.621807	0.002268
0.885067	1.621709	0.002248
0.892857	1.621612	0.002227
0.900715	1.621518	0.002207
0.908642	1.621425	0.002187
0.91664	1.621333	0.002167
0.924707	1.621243	0.002148
0.932846	1.621155	0.002128
0.941056	1.621069	0.002109
0.949339	1.620984	0.00209
0.957694	1.6209	0.002071
0.966123	1.620818	0.002052
0.974626	1.620738	0.002034
0.983204	1.620659	0.002016
0.991858	1.620581	0.001997
1.00059	1.620505	0.00198
1.00939	1.62043	0.001962
1.01828	1.620357	0.001944
1.02724	1.620285	0.001927
1.03628	1.620214	0.001909
1.0454	1.620144	0.001892
1.0546	1.620076	0.001875
1.06388	1.620009	0.001858
1.07325	1.619943	0.001842
1.08269	1.619878	0.001825
1.09222	1.619814	0.001809
1.10184	1.619752	0.001793
1.11153	1.61969	0.001777
1.12132	1.61963	0.001761
1.13119	1.619571	0.001745
1.14114	1.619513	0.001729
1.15118	1.619456	0.001714
1.16132	1.6194	0.001699
1.17154	1.619344	0.001683
1.18185	1.61929	0.001668
1.19225	1.619237	0.001654
1.20274	1.619185	0.001639
1.21333	1.619134	0.001624
1.22401	1.619083	0.00161
1.23478	1.619034	0.001596
1.24565	1.618985	0.001581
1.25661	1.618938	0.001567
1.26767	1.618891	0.001553
1.27883	1.618845	0.001539
1.29008	1.618799	0.001526
1.30144	1.618755	0.001512
1.31289	1.618711	0.001499
1.32445	1.618668	0.001485
1.33611	1.618626	0.001472
1.34786	1.618585	0.001459
1.35973	1.618544	0.001446
1.3717	1.618504	0.001433
1.38377	1.618465	0.001421
1.39595	1.618427	0.001408
1.40823	1.618389	0.001396
1.42063	1.618351	0.001383
1.43313	1.618315	0.001371
1.44574	1.618279	0.001359
1.45847	1.618244	0.001347
1.4713	1.618209	0.001335
1.48425	1.618175	0.001323
1.49732	1.618142	0.001311
1.5105	1.618109	0.0013
1.52379	1.618077	0.001288
1.5372	1.618045	0.001277
1.55073	1.618014	0.001266
1.56438	1.617983	0.001255
1.57815	1.617953	0.001243
1.59204	1.617924	0.001233
1.60605	1.617895	0.001222
1.62018	1.617866	0.001211
1.63444	1.617838	0.0012
1.64883	1.617811	0.00119
1.66334	1.617784	0.001179
1.67798	1.617757	0.001169
1.69275	1.617731	0.001158
1.70765	1.617706	0.001148
1.72268	1.61768	0.001138
1.73784	1.617656	0.001128
1.75313	1.617632	0.001118
1.76856	1.617608	0.001108
1.78413	1.617584	0.001098
1.79983	1.617561	0.001089
1.81567	1.617539	0.001079
1.83165	1.617516	0.00107
1.84777	1.617495	0.00106
1.86404	1.617473	0.001051
1.88044	1.617452	0.001042
1.89699	1.617431	0.001033
1.91369	1.617411	0.001024
1.93053	1.617391	0.001015
1.94752	1.617371	0.001006
1.96466	1.617352	0.000997
1.98196	1.617333	0.000988
1.9994	1.617315	0.000979
2.017	1.617296	0.000971

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: —

CeF₃ (Cerium trifluoride): all datasets

Rodríguez-de Marcos et al. 2017: n,k 0.03–2.0 µm n,k 0.0298–2.017 µm default

About CeF3 (Cerium trifluoride)

Cerium fluoride (CeF₃) is an inorganic compound that crystallizes in the hexagonal or orthorhombic structure. This material is notable for its scintillating properties, which makes it particularly useful in radiation detection applications such as medical imaging and high-energy physics experiments. With a high atomic number and a high density, CeF₃ is very effective at stopping high-energy photons, thereby converting their energy into a detectable light signal. It has a fast decay time, which is crucial for time-resolved measurements. Additionally, cerium fluoride is chemically stable and non-hygroscopic, an important feature for long-term operational reliability. While it is generally less expensive than other rare-earth scintillators, the challenge lies in optimizing its light yield and improving the energy resolution of detectors in which it is used. Synthesis methods for CeF₃ include solid-state reaction, hydrothermal processes, and co-precipitation, with each offering different advantages in terms of crystal quality and purity. Overall, CeF₃ remains a material of interest for various optoelectronic applications and continues to be the subject of research aimed at optimizing its scintillating properties. Mineral: Fluocerite-(Ce)

More about CeF3 (Cerium trifluoride) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/main/CeF3/nk/Rodriguez-de Marcos.yml
ID: ds_83eb2f3a9dee
API: /v1/datasets/ds_83eb2f3a9dee

Plot