# Optical constants for W created by PTB
# Determined from reflection measurements in the wavelength range 5.0 - 34.0 nm
# 40 nm W thin film in a multilayer on Si (C/ W/ Ru/ Si) (measured 04/2025)
# 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	0.98815	0.01297	0.98847	0.98786	0.01256	0.01338
5.25	0.98696	0.01429	0.9873	0.98663	0.01386	0.01469
5.5	0.98663	0.01598	0.98707	0.9862	0.01555	0.01643
5.75	0.98644	0.0164	0.98694	0.98601	0.016	0.01681
6.0	0.98578	0.01723	0.9863	0.9853	0.01683	0.01762
6.25	0.9852	0.01815	0.98578	0.98465	0.01774	0.01858
6.5	0.98465	0.0188	0.98537	0.98396	0.01838	0.01923
6.75	0.98389	0.0194	0.98466	0.98316	0.019	0.01983
7.0	0.98299	0.02037	0.98384	0.98217	0.01993	0.02082
7.25	0.98189	0.0216	0.98246	0.98132	0.02102	0.02219
7.5	0.98129	0.02252	0.98196	0.98066	0.02194	0.02315
7.75	0.98096	0.02311	0.98162	0.98024	0.02249	0.02379
8.0	0.98047	0.02328	0.98115	0.97978	0.02265	0.02398
8.25	0.97946	0.02371	0.98012	0.97873	0.02307	0.02441
8.5	0.97864	0.0242	0.97934	0.9779	0.02351	0.02491
8.75	0.97786	0.02445	0.97858	0.97712	0.02371	0.02518
9.0	0.9769	0.02457	0.97757	0.97621	0.02384	0.0253
9.25	0.97547	0.0248	0.97601	0.97494	0.02419	0.02544
9.5	0.974	0.02498	0.97449	0.97347	0.02439	0.02558
9.75	0.97235	0.02523	0.97283	0.97183	0.02464	0.02586
10.0	0.97065	0.02574	0.97115	0.97017	0.02515	0.02636
10.25	0.96898	0.02655	0.96946	0.9685	0.02593	0.0272
10.5	0.96744	0.02738	0.96794	0.96696	0.02682	0.02795
10.75	0.96604	0.02789	0.9665	0.9656	0.02737	0.02848
11.0	0.96454	0.028	0.96499	0.96407	0.02744	0.02854
11.25	0.96258	0.02814	0.96307	0.96209	0.02759	0.02868
11.5	0.96019	0.02871	0.96063	0.95972	0.02822	0.02924
11.75	0.95793	0.02879	0.95838	0.95747	0.02829	0.02934
12.0	0.95558	0.02906	0.95609	0.9551	0.02856	0.02961
12.25	0.95309	0.02969	0.95356	0.95261	0.02917	0.03023
12.5	0.95049	0.03027	0.95099	0.95	0.02976	0.03075
12.75	0.94742	0.03077	0.94793	0.94693	0.03028	0.03127
13.0	0.94419	0.03123	0.94467	0.94367	0.03075	0.03171
13.25	0.94069	0.0319	0.94122	0.94018	0.03141	0.03239
13.5	0.93706	0.03268	0.9376	0.93653	0.03218	0.03325
13.75	0.93341	0.03374	0.93394	0.93286	0.03323	0.03428
14.0	0.92959	0.03487	0.9301	0.92903	0.03436	0.03538
14.25	0.9259	0.03668	0.92647	0.92531	0.03612	0.03724
14.5	0.92168	0.03822	0.92227	0.92106	0.03762	0.03882
14.75	0.91723	0.03992	0.91788	0.91658	0.03928	0.04053
15.0	0.91255	0.04175	0.91317	0.91189	0.04113	0.0424
15.25	0.90755	0.04388	0.90821	0.90687	0.04319	0.04461
15.5	0.9024	0.04657	0.90311	0.90168	0.04586	0.04729
15.75	0.89748	0.0496	0.89825	0.89671	0.04876	0.05041
16.0	0.89265	0.05307	0.89347	0.89183	0.05217	0.05395
16.25	0.88805	0.0568	0.88888	0.88719	0.05583	0.05779
16.5	0.88341	0.06064	0.88442	0.88242	0.05958	0.06164
16.75	0.87896	0.06472	0.88	0.87792	0.06354	0.06596
17.0	0.87473	0.06882	0.87595	0.87354	0.06751	0.07009
17.25	0.8692	0.07397	0.87033	0.86792	0.07272	0.07524
17.5	0.8642	0.07925	0.86552	0.86291	0.07788	0.08089
17.75	0.85991	0.08461	0.86132	0.85847	0.08306	0.0862
18.0	0.85637	0.09095	0.85804	0.85477	0.08916	0.09277
18.25	0.85379	0.09795	0.85577	0.85189	0.09597	0.10004
18.5	0.85124	0.10525	0.85342	0.84897	0.10311	0.1074
18.75	0.84831	0.11271	0.85073	0.84572	0.11022	0.11501
19.0	0.84498	0.12031	0.84782	0.84204	0.11775	0.12312
19.25	0.84171	0.12785	0.84507	0.83846	0.12506	0.13093
19.5	0.8398	0.13626	0.84358	0.8358	0.13323	0.13949
19.75	0.83753	0.14485	0.84208	0.83201	0.14139	0.14864
20.0	0.83665	0.15349	0.84295	0.82925	0.14914	0.1574
20.25	0.83683	0.16181	0.84352	0.82826	0.15685	0.16622
20.5	0.83831	0.17145	0.84297	0.83353	0.1696	0.1733
20.75	0.83968	0.17963	0.84504	0.83473	0.17751	0.18161
21.0	0.84095	0.18738	0.84629	0.8354	0.18518	0.18959
21.25	0.84244	0.19452	0.84817	0.83675	0.19212	0.19669
21.5	0.84332	0.20146	0.84942	0.83792	0.1991	0.20406
21.75	0.84432	0.20888	0.851	0.83822	0.20617	0.21158
22.0	0.84535	0.21692	0.85168	0.83934	0.21413	0.21961
22.4	0.85135	0.23062	0.85831	0.84453	0.2276	0.23354
22.62	0.85415	0.23758	0.86166	0.84704	0.23426	0.24072
22.84	0.85801	0.24417	0.86604	0.85006	0.24086	0.24791
23.06	0.8649	0.25149	0.87329	0.85696	0.24799	0.25491
23.28	0.86906	0.25706	0.87789	0.85983	0.25342	0.26097
23.5	0.87734	0.26286	0.88667	0.8685	0.2589	0.26669
23.72	0.88682	0.26722	0.89651	0.87747	0.26294	0.27154
23.94	0.89709	0.27097	0.90755	0.88715	0.26657	0.27532
24.16	0.90945	0.272	0.9202	0.8996	0.26718	0.27644
24.38	0.91971	0.27095	0.92926	0.90958	0.26571	0.27558
24.6	0.93035	0.26633	0.94098	0.92013	0.26116	0.27127
24.82	0.93865	0.25983	0.94918	0.92817	0.25494	0.26504
25.04	0.9446	0.25201	0.95418	0.93573	0.24669	0.2568
25.2	0.94648	0.24687	0.95611	0.9371	0.24166	0.25212
25.3	0.94792	0.24285	0.95803	0.93879	0.23768	0.24784
25.4	0.94902	0.23885	0.95903	0.94041	0.2336	0.24355
25.5	0.94938	0.23544	0.95866	0.94036	0.23046	0.2405
25.6	0.94971	0.23173	0.95866	0.94123	0.22653	0.23685
25.7	0.94858	0.22836	0.95757	0.93971	0.22354	0.23292
25.8	0.94756	0.22516	0.95629	0.93899	0.22004	0.23024
25.9	0.94585	0.22208	0.95403	0.93687	0.21678	0.22688
26.0	0.94365	0.21903	0.95206	0.93568	0.21384	0.22384
26.1	0.94135	0.21629	0.94888	0.93361	0.21158	0.22117
26.2	0.93858	0.21414	0.94683	0.93099	0.20898	0.21883
26.3	0.93572	0.21234	0.9434	0.92814	0.20749	0.21707
26.4	0.93293	0.2112	0.94087	0.92524	0.20651	0.21623
26.5	0.92983	0.21032	0.93798	0.92182	0.20571	0.21505
26.6	0.92487	0.20903	0.93205	0.91727	0.20452	0.21394
26.7	0.92044	0.20935	0.92858	0.91306	0.20495	0.21424
26.8	0.91696	0.20977	0.92497	0.90953	0.20516	0.21438
26.9	0.91382	0.2103	0.92151	0.90618	0.20576	0.21506
27.0	0.91036	0.21123	0.91837	0.90219	0.20644	0.21601
27.1	0.90685	0.21269	0.91546	0.89861	0.20787	0.21742
27.2	0.90477	0.21452	0.91293	0.8966	0.20946	0.21922
27.3	0.90012	0.21631	0.9085	0.89198	0.2115	0.22091
27.4	0.89698	0.2184	0.90535	0.88909	0.21337	0.22303
27.5	0.89431	0.22082	0.9031	0.88602	0.21614	0.22559
27.6	0.8929	0.22396	0.90213	0.88372	0.21906	0.22875
27.7	0.88875	0.22596	0.89784	0.88031	0.22062	0.23075
27.8	0.88683	0.22868	0.89626	0.87747	0.22412	0.23323
27.9	0.88255	0.23271	0.8914	0.87336	0.22797	0.23771
28.0	0.88121	0.23582	0.88957	0.87252	0.23075	0.24079
28.1	0.87872	0.23954	0.88845	0.86975	0.23476	0.24498
28.2	0.87527	0.24429	0.88485	0.86579	0.23924	0.24888
28.3	0.87412	0.24898	0.88381	0.86499	0.24388	0.25388
28.4	0.87271	0.25356	0.88215	0.86303	0.24892	0.2586
28.5	0.87089	0.25873	0.88179	0.86065	0.25348	0.26351
28.6	0.87025	0.26424	0.88083	0.85937	0.25913	0.26984
28.7	0.86935	0.26994	0.87983	0.85893	0.26477	0.27506
28.8	0.87004	0.27612	0.8812	0.85979	0.27075	0.28135
28.9	0.87173	0.28198	0.8832	0.8602	0.27643	0.28716
29.0	0.87359	0.28823	0.8852	0.86126	0.2829	0.29374
29.1	0.877	0.29384	0.8897	0.86469	0.28818	0.29961
29.2	0.87925	0.29978	0.89212	0.86736	0.29429	0.30547
29.3	0.88328	0.30574	0.89684	0.87049	0.29996	0.31147
29.4	0.88803	0.31138	0.90172	0.87439	0.30552	0.31737
29.5	0.89452	0.31681	0.9088	0.87958	0.31058	0.32302
29.6	0.89853	0.32138	0.91286	0.88444	0.31543	0.32754
29.7	0.90629	0.32606	0.92093	0.89187	0.31971	0.33216
29.8	0.91474	0.32937	0.93124	0.89723	0.32278	0.33554
29.9	0.9222	0.33251	0.93984	0.90607	0.32599	0.33935
30.0	0.9322	0.33417	0.94891	0.91548	0.32727	0.34071
30.1	0.94051	0.33509	0.95845	0.92426	0.32822	0.34162
30.2	0.94986	0.33455	0.96727	0.93148	0.32731	0.34149
30.3	0.95943	0.3329	0.97694	0.94148	0.32511	0.34027
30.4	0.9665	0.33034	0.98562	0.95017	0.32255	0.33803
30.5	0.97538	0.32613	0.99281	0.95864	0.31815	0.33382
30.6	0.98452	0.32014	1.0021	0.96656	0.31208	0.32861
30.7	0.99024	0.31492	1.00779	0.97313	0.30612	0.32333
30.8	0.99699	0.30825	1.01609	0.98048	0.29999	0.31632
30.9	1.00366	0.30229	1.02058	0.98614	0.29363	0.31087
31.0	1.00434	0.29573	1.02187	0.98764	0.28647	0.30412
31.1	1.00742	0.28849	1.02354	0.99183	0.28009	0.29714
31.2	1.00967	0.28221	1.02635	0.99318	0.27332	0.29112
31.3	1.01015	0.2762	1.02597	0.9951	0.26699	0.28447
31.4	1.01174	0.2699	1.02858	0.9971	0.26053	0.27778
31.5	1.01278	0.2646	1.02827	0.99605	0.25525	0.27288
31.6	1.01199	0.26019	1.02713	0.99708	0.25152	0.26824
31.7	1.01269	0.25553	1.02841	0.99809	0.24718	0.2645
31.8	1.01347	0.25106	1.02892	0.99945	0.24292	0.25977
31.9	1.01469	0.24615	1.02966	0.99948	0.23642	0.2547
32.0	1.01468	0.24218	1.02813	0.99986	0.23294	0.25026
32.25	1.01656	0.23063	1.03029	1.00291	0.22179	0.23905
32.5	1.0182	0.21696	1.03129	1.00551	0.20821	0.22544
32.75	1.01833	0.20297	1.03171	1.00633	0.19458	0.21121
33.0	1.01683	0.18751	1.02905	1.00519	0.17906	0.19572
33.25	1.01317	0.17038	1.02498	1.00079	0.16226	0.17873
33.5	1.0067	0.15102	1.01791	0.99542	0.14317	0.15806
33.75	0.99445	0.13334	1.00561	0.9846	0.12629	0.14001
34.0	0.97901	0.11753	0.98848	0.97058	0.11205	0.12285