# Optical constants for Cr created by PTB
# Determined from reflection measurements in the wavelength range 5.0 - 20.0 nm
# 30 nm Cr thin film on Si (measured 02/2025)
# n = (1-delta) - (i*beta)
# Citation: Q. Saadeh, A. Sokolov, M. Störmer, et al., "Optical constants of Sc, V, Cr, Co, Ni, Nb, Mo, Rh, Pd, Hf, W, Re, Os, Ir, Pt, Au, and ZrO2 in the extreme ultraviolet range," Opt. Express 34(15), 28239-28292 (2026).
# The values are provided with their 3-sigma uncertainty bounds. HB: Higher Bound. LB: Lower Bound.
# lambda/nm	1-delta	beta	1-delta_LB	1-delta_HB	beta_LB	beta_HB
# ------------------------
5.0	0.9882	0.00386	0.98823	0.98818	0.00381	0.00391
5.1	0.98781	0.00411	0.98784	0.98778	0.00406	0.00416
5.2	0.98742	0.00433	0.98744	0.98739	0.00428	0.00439
5.3	0.987	0.00455	0.98703	0.98697	0.00449	0.00461
5.4	0.98647	0.00472	0.9865	0.98644	0.00466	0.00478
5.5	0.98592	0.00492	0.98595	0.98589	0.00486	0.00498
5.6	0.98551	0.00521	0.98554	0.98548	0.00515	0.00527
5.7	0.98513	0.00549	0.98516	0.98509	0.00542	0.00555
5.8	0.98468	0.0057	0.98472	0.98465	0.00563	0.00576
5.9	0.9842	0.00589	0.98423	0.98416	0.00582	0.00595
6.0	0.98368	0.00609	0.98371	0.98364	0.00602	0.00616
6.1	0.98313	0.0063	0.98317	0.9831	0.00623	0.00637
6.2	0.98258	0.00652	0.98261	0.98254	0.00644	0.00659
6.3	0.98198	0.00677	0.98202	0.98194	0.00669	0.00685
6.4	0.98135	0.00709	0.98139	0.98131	0.00701	0.00716
6.5	0.98073	0.00747	0.98077	0.98069	0.00739	0.00755
6.6	0.98012	0.00788	0.98016	0.98008	0.0078	0.00797
6.7	0.97953	0.00833	0.97958	0.97949	0.00824	0.00842
6.8	0.979	0.00878	0.97905	0.97895	0.00869	0.00888
6.9	0.97848	0.00922	0.97852	0.97843	0.00913	0.00932
7.0	0.97798	0.00961	0.97803	0.97793	0.00951	0.00971
7.1	0.97752	0.00994	0.97757	0.97746	0.00983	0.01004
7.2	0.977	0.01022	0.97705	0.97695	0.01012	0.01033
7.3	0.97638	0.01048	0.97644	0.97633	0.01038	0.01059
7.4	0.97582	0.01083	0.97587	0.97577	0.01072	0.01094
7.5	0.97527	0.01122	0.97533	0.97522	0.01111	0.01133
7.6	0.97477	0.01163	0.97483	0.97471	0.01152	0.01174
7.7	0.97429	0.01201	0.97435	0.97423	0.01189	0.01213
7.8	0.97385	0.01234	0.97391	0.97379	0.01222	0.01246
7.9	0.97341	0.01261	0.97347	0.97335	0.01249	0.01273
8.0	0.97295	0.01281	0.97301	0.97289	0.01269	0.01294
8.1	0.97244	0.01297	0.9725	0.97237	0.01285	0.0131
8.2	0.97188	0.01313	0.97195	0.97182	0.01299	0.01325
8.3	0.97128	0.0133	0.97134	0.97121	0.01317	0.01343
8.4	0.97064	0.01346	0.97071	0.97058	0.01334	0.01359
8.5	0.96995	0.01364	0.97001	0.96988	0.01351	0.01377
8.6	0.96918	0.01385	0.96925	0.96912	0.01372	0.01398
8.7	0.96836	0.01415	0.96843	0.9683	0.01401	0.01428
8.8	0.9675	0.01455	0.96757	0.96743	0.01442	0.01468
8.9	0.96665	0.01506	0.96672	0.96658	0.01492	0.0152
9.0	0.96584	0.01569	0.96591	0.96576	0.01554	0.01583
9.1	0.96505	0.01636	0.96513	0.96498	0.01622	0.01651
9.2	0.96439	0.01706	0.96447	0.96431	0.0169	0.01721
9.3	0.96381	0.0177	0.96389	0.96373	0.01755	0.01786
9.4	0.96328	0.01824	0.96336	0.9632	0.01807	0.0184
9.5	0.96275	0.01866	0.96284	0.96267	0.01849	0.01882
9.6	0.96218	0.01901	0.96226	0.96209	0.01884	0.01917
9.7	0.96154	0.01934	0.96163	0.96146	0.01917	0.01951
9.8	0.96085	0.0197	0.96094	0.96077	0.01952	0.01987
9.9	0.96013	0.02009	0.96022	0.96004	0.01992	0.02027
10.0	0.95939	0.02043	0.95951	0.95928	0.02021	0.02067
10.1	0.95864	0.02091	0.95876	0.95853	0.02069	0.02114
10.2	0.9579	0.02144	0.95801	0.95778	0.0212	0.02168
10.3	0.95716	0.022	0.95728	0.95704	0.02176	0.02225
10.4	0.95645	0.0226	0.95657	0.95633	0.02236	0.02285
10.5	0.95579	0.02318	0.95592	0.95567	0.02293	0.02342
10.6	0.95517	0.02371	0.95529	0.95504	0.02346	0.02396
10.7	0.95454	0.02417	0.95467	0.95442	0.02392	0.02443
10.8	0.9539	0.02457	0.95403	0.95377	0.0243	0.02483
10.9	0.95322	0.02495	0.95335	0.95309	0.02468	0.02522
11.0	0.95252	0.02531	0.95264	0.95239	0.02506	0.02559
11.1	0.95179	0.02569	0.95192	0.95165	0.02542	0.02596
11.2	0.95099	0.02602	0.95112	0.95085	0.02575	0.0263
11.3	0.95022	0.02639	0.95035	0.95009	0.02611	0.02667
11.4	0.94944	0.02675	0.94958	0.9493	0.02647	0.02703
11.5	0.94865	0.02709	0.9488	0.94852	0.02682	0.02737
11.6	0.94784	0.0274	0.94798	0.9477	0.02711	0.02769
11.7	0.947	0.0277	0.94714	0.94687	0.02741	0.02799
11.8	0.9461	0.02794	0.94625	0.94596	0.02765	0.02823
11.9	0.94513	0.02818	0.94527	0.945	0.02789	0.02847
12.0	0.94407	0.02843	0.94421	0.94393	0.02814	0.02872
12.1	0.94295	0.02877	0.94309	0.9428	0.02848	0.02906
12.2	0.94171	0.02915	0.94185	0.94156	0.02886	0.02945
12.3	0.94048	0.02981	0.94062	0.94033	0.02951	0.03011
12.4	0.9392	0.03043	0.93935	0.93905	0.03014	0.03074
12.5	0.93782	0.03116	0.93796	0.93767	0.03085	0.03147
12.6	0.9365	0.03209	0.93665	0.93634	0.03178	0.03242
12.7	0.93521	0.03314	0.93537	0.93505	0.03282	0.03347
12.8	0.93398	0.03429	0.93415	0.93382	0.03395	0.03462
12.9	0.93285	0.03553	0.93301	0.93268	0.03519	0.03588
13.0	0.9318	0.03682	0.93197	0.93164	0.03647	0.03716
13.1	0.93086	0.03811	0.93104	0.93068	0.03774	0.03846
13.2	0.93	0.03937	0.93018	0.92982	0.03899	0.03973
13.3	0.92922	0.04059	0.92941	0.92904	0.04022	0.04097
13.4	0.92851	0.04173	0.9287	0.92832	0.04135	0.04212
13.5	0.92784	0.0428	0.92803	0.92764	0.04241	0.0432
13.6	0.92719	0.04377	0.92739	0.92699	0.04336	0.04418
13.7	0.92654	0.04461	0.92675	0.92634	0.04419	0.04503
13.8	0.92586	0.04536	0.92607	0.92566	0.04494	0.04577
13.9	0.92514	0.046	0.92534	0.92493	0.04557	0.04642
14.0	0.92435	0.04658	0.92456	0.92414	0.04616	0.04699
14.1	0.92348	0.04709	0.92369	0.92327	0.04668	0.04752
14.2	0.92253	0.04757	0.92275	0.92232	0.04715	0.048
14.3	0.92149	0.04804	0.9217	0.92127	0.04759	0.04846
14.4	0.92036	0.04852	0.92058	0.92014	0.04809	0.04896
14.5	0.91915	0.04905	0.91937	0.91893	0.04862	0.04949
14.6	0.91785	0.0496	0.91807	0.91763	0.04916	0.05005
14.7	0.91649	0.05023	0.91672	0.91626	0.04979	0.05067
14.8	0.91507	0.0509	0.91529	0.91484	0.05045	0.05136
14.9	0.91359	0.05162	0.91382	0.91336	0.05116	0.05206
15.0	0.91203	0.05245	0.91227	0.9118	0.05199	0.05291
15.1	0.91044	0.05334	0.91067	0.91021	0.05287	0.05381
15.2	0.90879	0.05432	0.90903	0.90856	0.05385	0.05479
15.3	0.9071	0.05543	0.90734	0.90686	0.05496	0.0559
15.4	0.90538	0.05661	0.90563	0.90515	0.05614	0.05709
15.5	0.90365	0.05791	0.90389	0.90339	0.05741	0.05842
15.6	0.9019	0.05932	0.90216	0.90165	0.0588	0.05983
15.7	0.90016	0.06081	0.90042	0.8999	0.0603	0.06131
15.8	0.89841	0.06242	0.89867	0.89814	0.0619	0.06297
15.9	0.89665	0.06411	0.89693	0.89638	0.06355	0.06464
16.0	0.89492	0.06591	0.89519	0.89464	0.06536	0.06646
16.1	0.89317	0.06779	0.89345	0.89289	0.06723	0.06834
16.2	0.89144	0.06976	0.89174	0.89115	0.06917	0.07032
16.3	0.88973	0.07183	0.89001	0.88943	0.07124	0.07241
16.4	0.88801	0.07402	0.88832	0.88771	0.07343	0.0746
16.5	0.88631	0.07633	0.88662	0.88599	0.07571	0.07693
16.6	0.88461	0.07877	0.88493	0.88428	0.07814	0.07943
16.7	0.88297	0.08137	0.88331	0.88265	0.08072	0.08204
16.8	0.88141	0.08407	0.88175	0.88106	0.08341	0.08473
16.9	0.87992	0.08695	0.88027	0.87957	0.08627	0.08763
17.0	0.87853	0.08997	0.87889	0.87816	0.08927	0.09068
17.1	0.87731	0.09305	0.8777	0.87694	0.09234	0.09376
17.2	0.87617	0.09622	0.87656	0.87577	0.0955	0.09695
17.3	0.87523	0.09959	0.87564	0.87482	0.09883	0.10032
17.4	0.87439	0.1028	0.87482	0.87396	0.10204	0.10357
17.5	0.87366	0.10607	0.87411	0.87321	0.10527	0.10686
17.6	0.87303	0.10921	0.87349	0.87256	0.1084	0.11
17.7	0.87244	0.11236	0.87293	0.87197	0.11155	0.11321
17.8	0.87197	0.11549	0.87247	0.87147	0.11461	0.11632
17.9	0.87151	0.11856	0.87202	0.87099	0.11769	0.11939
18.0	0.8711	0.12163	0.87164	0.87055	0.12075	0.12253
18.1	0.87079	0.12471	0.87135	0.87025	0.1238	0.1256
18.2	0.87049	0.12774	0.87105	0.86994	0.12684	0.12867
18.3	0.87026	0.13078	0.87086	0.86964	0.12986	0.13168
18.4	0.87008	0.13382	0.87069	0.86945	0.1329	0.13476
18.5	0.86994	0.13689	0.87059	0.86931	0.13594	0.13785
18.6	0.86984	0.1399	0.87051	0.86919	0.13896	0.14087
18.7	0.86976	0.14292	0.87044	0.86906	0.14193	0.14388
18.8	0.86977	0.14595	0.87048	0.86908	0.14494	0.147
18.9	0.86991	0.14904	0.87066	0.86916	0.148	0.15005
19.0	0.87006	0.15206	0.87085	0.86933	0.15103	0.15308
19.1	0.8703	0.15506	0.87109	0.86952	0.15405	0.15612
19.2	0.87065	0.15809	0.87148	0.86985	0.15702	0.15915
19.3	0.87101	0.16103	0.87187	0.87018	0.15996	0.16213
19.4	0.87152	0.16402	0.87234	0.87067	0.16294	0.1651
19.5	0.87217	0.16695	0.87305	0.87128	0.16584	0.16804
19.6	0.87287	0.16981	0.87381	0.87196	0.16873	0.17092
19.7	0.87362	0.17264	0.87456	0.87268	0.17152	0.17375
19.8	0.87445	0.17537	0.87548	0.87349	0.17421	0.17654
19.9	0.8755	0.17812	0.87653	0.87451	0.17696	0.17927
20.0	0.87657	0.1808	0.8776	0.87556	0.17962	0.18197