Optical constants for float glass, air side
nm
NK
250	1.5812	9.4149e-05
255	1.5774	9.6838e-05
260	1.5738	0.00010362
265	1.5704	0.00010833
270	1.5672	0.00011399
275	1.5643	0.0001199
280	1.5615	0.00012344
285	1.5589	0.00012093
290	1.5565	9.88e-05
295	1.5542	7.5089e-05
300	1.552	5.5172e-05
305	1.55	3.9807e-05
310	1.5481	2.8251e-05
315	1.5462	2.0091e-05
320	1.5445	1.4173e-05
325	1.5429	9.9426e-06
330	1.5413	6.9166e-06
335	1.5398	4.8187e-06
340	1.5384	3.433e-06
345	1.5371	2.3285e-06
350	1.5358	1.7362e-06
355	1.5346	1.3675e-06
360	1.5335	1.1255e-06
365	1.5323	9.889e-07
370	1.5313	9.6172e-07
375	1.5303	1.0123e-06
380	1.5293	1.0048e-06
385	1.5284	8.8592e-07
390	1.5275	7.8466e-07
395	1.5267	7.333e-07
400	1.5259	6.966e-07
405	1.5251	7.0757e-07
410	1.5243	7.3102e-07
415	1.5236	7.4646e-07
420	1.5229	7.306e-07
425	1.5223	7.4571e-07
430	1.5216	7.4759e-07
435	1.521	7.6696e-07
440	1.5204	7.4349e-07
445	1.5198	7.4379e-07
450	1.5193	6.9028e-07
455	1.5188	6.8306e-07
460	1.5182	6.806e-07
465	1.5177	6.7931e-07
470	1.5173	6.5103e-07
475	1.5168	6.1526e-07
480	1.5164	5.9775e-07
485	1.5159	5.6902e-07
490	1.5155	6.1886e-07
495	1.5151	5.807e-07
500	1.5147	5.9617e-07
510	1.514	0
520	1.5133	0
530	1.5126	0
540	1.512	0
550	1.5114	0
560	1.5108	0
570	1.5103	0
580	1.5098	0
590	1.5094	0
600	1.5089	0
610	1.5085	0
620	1.5081	0
630	1.5077	0
640	1.5073	0
650	1.507	0
660	1.5067	0
670	1.5064	0
680	1.5061	0
690	1.5058	0
700	1.5055	0
710	1.5052	0
720	1.505	0
730	1.5047	0
740	1.5045	0
750	1.5043	0
760	1.5041	0
770	1.5039	0
780	1.5037	0
790	1.5035	0
800	1.5033	0
810	1.5031	0
820	1.503	0
830	1.5028	0
840	1.5027	0
850	1.5025	0
860	1.5024	0
870	1.5022	0
880	1.5021	0
890	1.502	0
900	1.5018	0
910	1.5017	0
920	1.5016	0
930	1.5015	0
940	1.5014	0
950	1.5013	0
960	1.5012	0
970	1.5011	0
980	1.501	0
990	1.5009	0
1000	1.5008	0