Photon Energy (eV) Extinction Coefficient Extinction Coefficient Extinction Coefficient Extinction Coefficient Extinction Coefficient Extinction Coefficient Photon Energy (eV) Extinction Coefficient 20 °C 200 °C 250 °C 300 °C 350 °C Oxide 400 °C 4.13281 0.67155 0.65453 0.65695 0.62136 0.59133 0.26239 4.13281 0.61304 3.87451 0.6106 0.59023 0.59396 0.56425 0.53723 0.24899 3.99949 0.58485 3.64659 0.55929 0.53729 0.54201 0.51638 0.49162 0.20141 3.87451 0.55888 3.44401 0.51602 0.49393 0.49936 0.4762 0.45309 0.1128 3.7571 0.53495 3.26274 0.47949 0.45861 0.46453 0.44243 0.42046 0.03992 3.64659 0.51287 3.0996 0.44862 0.43007 0.43626 0.41403 0.39279 0.00914 3.54241 0.4925 2.952 0.4225 0.40721 0.41353 0.39013 0.36929 0.00146 3.44401 0.47368 2.81782 0.4004 0.38913 0.39543 0.37002 0.34932 1.80196E-4 3.35092 0.4563 2.69531 0.38168 0.37504 0.38121 0.35312 0.33233 1.84507E-5 3.26274 0.44022 2.583 0.36583 0.36428 0.37023 0.33892 0.31788 1.67372E-6 3.17908 0.42535 2.47968 0.35238 0.35623 0.36193 0.32701 0.30559 1.41127E-7 3.0996 0.41159 2.38431 0.34093 0.35027 0.35577 0.31704 0.29515 1.14712E-8 3.024 0.39885 2.296 0.33103 0.34558 0.35112 0.30871 0.28629 9.23834E-10 2.952 0.38705 2.214 0.32203 0.34083 0.34709 0.30176 0.27878 7.52474E-11 2.88335 0.37612 2.13766 0.3129 0.33412 0.34226 0.29595 0.27242 6.2938E-12 2.81782 0.36599 2.0664 0.30212 0.32322 0.33472 0.29102 0.26705 5.46521E-13 2.7552 0.35659 1.99975 0.28801 0.30631 0.3225 0.28659 0.26251 4.94554E-14 2.69531 0.34788 1.93725 0.26928 0.28275 0.30424 0.2821 0.25866 4.49955E-15 2.63796 0.3398 1.87855 0.24558 0.25331 0.27974 0.27669 0.25534 2.12977E-16 2.583 0.3323 1.8233 0.21767 0.21994 0.25002 0.26931 0.25234 -1.51549E-17 2.53029 0.32534 1.7712 0.18722 0.18512 0.21704 0.25889 0.2493 -2.67322E-21 2.47968 0.31888 1.722 0.15626 0.15126 0.18309 0.24474 0.24575 -8.74514E-24 2.43106 0.31289 1.67546 0.12669 0.12022 0.1503 0.22672 0.24105 0 2.38431 0.30733 1.63137 0.09997 0.09317 0.12029 0.20536 0.23453 0 2.33932 0.30216 1.58954 0.07694 0.07059 0.09408 0.18168 0.22562 0 2.296 0.29737 1.5498 0.0579 0.05242 0.07207 0.15699 0.214 0 2.25426 0.29292 1.512 0.04271 0.03825 0.0542 0.13258 0.1997 0 2.214 0.2888 1.476 0.03096 0.0275 0.04011 0.10956 0.18308 0 2.17516 0.28497 1.44168 0.0221 0.01951 0.02927 0.08872 0.1648 0 2.13766 0.28141 1.40891 0.01558 0.0137 0.02111 0.07052 0.14565 0 2.10143 0.27811 1.3776 0.01087 0.00954 0.01508 0.05511 0.12644 0 2.0664 0.27506 1.34765 0.00751 0.0066 0.01068 0.04242 0.1079 0 2.03253 0.27222 1.31898 0.00516 0.00454 0.00752 0.03222 0.09061 0 1.99975 0.26959 1.2915 0.00352 0.00311 0.00527 0.02418 0.07495 0 1.968 0.26715 1.26514 0.0024 0.00213 0.00368 0.01797 0.06115 0 1.93725 0.26489 1.23984 0.00163 0.00145 0.00256 0.01323 0.04927 0 1.90745 0.2628 1.21553 0.0011 9.92292E-4 0.00178 0.00967 0.03925 0 1.87855 0.26085 1.19216 7.45762E-4 6.77634E-4 0.00124 0.00703 0.03095 0 1.85051 0.25905 1.16966 5.04973E-4 4.63286E-4 8.58947E-4 0.00508 0.02418 0 1.8233 0.25737 1.148 3.42253E-4 3.17299E-4 5.97485E-4 0.00366 0.01875 0 1.79687 0.25582 1.12713 2.32332E-4 2.17815E-4 4.16231E-4 0.00263 0.01444 0 1.7712 0.25436 1.107 1.58048E-4 1.49933E-4 2.90543E-4 0.00188 0.01105 0 1.74626 0.25299 1.08758 1.07793E-4 1.03531E-4 2.03301E-4 0.00135 0.00842 0 1.722 0.25169 1.06883 7.3737E-5 7.17373E-5 1.42654E-4 9.64487E-4 0.00638 0 1.69841 0.25043 1.05071 5.06081E-5 4.98931E-5 1.0041E-4 6.89814E-4 0.00482 0 1.67546 0.24919 1.0332 3.48592E-5 3.48381E-5 7.09155E-5 4.93594E-4 0.00364 0 1.65312 0.24794 1.01626 2.41037E-5 2.44268E-5 5.02652E-5 3.53517E-4 0.00274 0 1.63137 0.24663 0.99987 1.67341E-5 1.72007E-5 3.57632E-5 2.5353E-4 0.00205 0 1.61018 0.24522 0.984 1.16667E-5 1.21659E-5 2.55456E-5 1.8213E-4 0.00154 0 1.58954 0.24364 0.96863 8.16917E-6 8.64375E-6 1.83213E-5 1.311E-4 0.00116 0 1.56942 0.24185 0.95372 5.74561E-6 6.1695E-6 1.31948E-5 9.45813E-5 8.67426E-4 0 1.5498 0.23977 0.93927 4.05937E-6 4.42394E-6 9.54306E-6 6.84061E-5 6.50724E-4 0 1.53067 0.23735 0.92526 2.88119E-6 3.18711E-6 6.93165E-6 4.96086E-5 4.8846E-4 0 1.512 0.23453 0.91165 2.05447E-6 2.30684E-6 5.05664E-6 3.608E-5 3.66993E-4 0 1.49379 0.23124 0.89844 1.47178E-6 1.67755E-6 3.70493E-6 2.63201E-5 2.76056E-4 0 1.476 0.22745 0.8856 1.0593E-6 1.22565E-6 2.72641E-6 1.92608E-5 2.07946E-4 0 1.45864 0.22311 0.87313 7.65986E-7 8.99671E-7 2.01511E-6 1.41407E-5 1.56893E-4 0 1.44168 0.21821 0.861 5.56479E-7 6.63463E-7 1.49588E-6 1.04163E-5 1.18588E-4 0 1.42511 0.21274 0.84921 4.06152E-7 4.91526E-7 1.11526E-6 7.69904E-6 8.98101E-5 0 1.40891 0.20672 0.83773 2.97806E-7 3.65813E-7 8.3508E-7 5.71029E-6 6.81586E-5 0 1.39308 0.20016 0.82656 2.19366E-7 2.73487E-7 6.27969E-7 4.25013E-6 5.18419E-5 0 1.3776 0.1931 0.81569 1.62322E-7 2.05379E-7 4.74232E-7 3.17453E-6 3.95228E-5 0 1.36246 0.1856 0.80509 1.20653E-7 1.54915E-7 3.59639E-7 2.37957E-6 3.0204E-5 0 1.34765 0.17773 0.79477 9.00803E-8 1.17361E-7 2.73871E-7 1.79006E-6 2.31398E-5 0 1.33316 0.16954 0.78471 6.75509E-8 8.92943E-8 2.09415E-7 1.35141E-6 1.77732E-5 0 1.31898 0.16112 0.7749 5.08765E-8 6.82284E-8 1.60779E-7 1.0239E-6 1.3687E-5 0 1.3051 0.15253 0.76533 3.84825E-8 5.23499E-8 1.23934E-7 7.78527E-7 1.05682E-5 0 1.2915 0.14387 0.756 2.9231E-8 4.03323E-8 9.59086E-8 5.94059E-7 8.18201E-6 0 1.27819 0.1352 0.74689 2.22964E-8 3.11997E-8 7.45097E-8 4.54902E-7 6.35187E-6 0 1.26514 0.12659 0.738 1.70766E-8 2.42312E-8 5.81076E-8 3.49565E-7 4.94463E-6 0 1.25237 0.11811 0.72932 1.31317E-8 1.88927E-8 4.54867E-8 2.69556E-7 3.85977E-6 0 1.23984 0.10982 1.22757 0.10177 1.21553 0.09401 1.20373 0.08656 1.19216 0.07947 1.1808 0.07274 1.16966 0.0664 1.15873 0.06045 1.148 0.05489 1.13747 0.04972 1.12713 0.04493 1.11697 0.04051 1.107 0.03645 1.09721 0.03273 1.08758 0.02934 1.07812 0.02625 1.06883 0.02344 1.05969 0.02091 1.05071 0.01862 1.04188 0.01655 1.0332 0.0147 1.02466 0.01304 1.01626 0.01155 1.008 0.01023 0.99987 0.00904 0.99187 0.00799 0.984 0.00705 0.97625 0.00622 0.96863 0.00548 0.96112 0.00483 0.95372 0.00425 0.94644 0.00374 0.93927 0.00329 0.93221 0.0029 0.92526 0.00255 0.9184 0.00224 0.91165 0.00197 0.90499 0.00173 0.89844 0.00152 0.89197 0.00133 0.8856 0.00117 0.87932 0.00103 0.87313 9.0407E-4 0.86702 7.94238E-4 0.861 6.9782E-4 0.85506 6.13188E-4 0.84921 5.38906E-4 0.84343 4.73712E-4 0.83773 4.16493E-4 0.83211 3.66273E-4 0.82656 3.22192E-4 0.82109 2.83497E-4 0.81569 2.49525E-4 0.81035 2.19695E-4 0.80509 1.93497E-4 0.7999 1.70484E-4 0.79477 1.50264E-4 0.78971 1.32494E-4 0.78471 1.16874E-4 0.77977 1.03137E-4 0.7749 9.10549E-5 0.77009 8.04236E-5 0.76533 7.1066E-5 0.76064 6.28263E-5 0.756 5.55684E-5 0.75142 4.91727E-5 0.74689 4.35346E-5 0.74242 3.85624E-5 0.738 3.41754E-5 0.73363 3.03031E-5 0.72932 2.68836E-5