# this file is part of refractiveindex.info database # refractiveindex.info database is in the public domain # copyright and related rights waived via CC0 1.0 REFERENCES: | A. Cheikh, J. Gonçalves, C. Labbé, X. Portier, P. Marie, C. Frilay, O. Debieu, S. Duprey, W. Jadwisienczak, D. Ingram, J. Cardin. Tailoring the structural and optical properties of Ta2O5 thin films via radio frequency magnetron sputtering for high-refractive index transparent materials. J. Alloys Compd. 1040, 183273 (2025) (Numerical data kindly provided by Julien Cardin) COMMENTS: | Ta2O5 amorphous thin film. Deposited by radio frequency magnetron sputtering at sputtering power density 3.28 W/cm2 under oxygen flow of 8 sccm. Annealed at 550 °C. DATA: - type: tabulated nk data: | 0.20667 2.46422 1.38429 0.20701 2.47280 1.38087 0.20736 2.48140 1.37734 0.20771 2.49000 1.37371 0.20805 2.49861 1.36997 0.20840 2.50723 1.36611 0.20875 2.51586 1.36215 0.20911 2.52449 1.35808 0.20946 2.53312 1.35389 0.20981 2.54176 1.34959 0.21017 2.55039 1.34518 0.21053 2.55901 1.34065 0.21088 2.56764 1.33600 0.21124 2.57625 1.33123 0.21160 2.58486 1.32634 0.21197 2.59345 1.32134 0.21233 2.60203 1.31621 0.21269 2.61059 1.31096 0.21306 2.61914 1.30558 0.21343 2.62766 1.30008 0.21379 2.63616 1.29446 0.21416 2.64464 1.28871 0.21453 2.65309 1.28283 0.21490 2.66150 1.27683 0.21528 2.66989 1.27070 0.21565 2.67823 1.26444 0.21603 2.68654 1.25805 0.21640 2.69481 1.25153 0.21678 2.70304 1.24488 0.21716 2.71121 1.23810 0.21754 2.71934 1.23119 0.21793 2.72741 1.22416 0.21831 2.73543 1.21699 0.21869 2.74339 1.20969 0.21908 2.75129 1.20226 0.21947 2.75912 1.19470 0.21986 2.76689 1.18701 0.22025 2.77458 1.17919 0.22064 2.78220 1.17124 0.22103 2.78975 1.16316 0.22143 2.79721 1.15495 0.22182 2.80459 1.14662 0.22222 2.81188 1.13816 0.22262 2.81908 1.12957 0.22302 2.82618 1.12086 0.22342 2.83319 1.11202 0.22383 2.84011 1.10307 0.22423 2.84691 1.09399 0.22464 2.85361 1.08479 0.22505 2.86020 1.07547 0.22545 2.86668 1.06604 0.22587 2.87304 1.05649 0.22628 2.87928 1.04682 0.22669 2.88540 1.03705 0.22711 2.89140 1.02717 0.22752 2.89726 1.01717 0.22794 2.90300 1.00708 0.22836 2.90860 0.99688 0.22878 2.91406 0.98658 0.22921 2.91938 0.97619 0.22963 2.92455 0.96569 0.23006 2.92958 0.95511 0.23048 2.93447 0.94444 0.23091 2.93920 0.93368 0.23134 2.94377 0.92284 0.23178 2.94819 0.91192 0.23221 2.95245 0.90092 0.23265 2.95655 0.88985 0.23308 2.96049 0.87870 0.23352 2.96426 0.86750 0.23396 2.96786 0.85622 0.23440 2.97129 0.84489 0.23485 2.97455 0.83351 0.23529 2.97764 0.82207 0.23574 2.98055 0.81058 0.23619 2.98329 0.79905 0.23664 2.98585 0.78748 0.23709 2.98823 0.77588 0.23755 2.99043 0.76424 0.23800 2.99245 0.75258 0.23846 2.99429 0.74089 0.23892 2.99594 0.72918 0.23938 2.99741 0.71746 0.23985 2.99870 0.70573 0.24031 2.99981 0.69399 0.24078 3.00073 0.68224 0.24125 3.00146 0.67050 0.24172 3.00201 0.65877 0.24219 3.00238 0.64704 0.24266 3.00256 0.63534 0.24314 3.00256 0.62365 0.24361 3.00237 0.61198 0.24409 3.00201 0.60034 0.24458 3.00146 0.58873 0.24506 3.00073 0.57716 0.24554 2.99982 0.56563 0.24603 2.99873 0.55415 0.24652 2.99747 0.54271 0.24701 2.99602 0.53132 0.24750 2.99441 0.51999 0.24800 2.99262 0.50872 0.24850 2.99066 0.49752 0.24900 2.98853 0.48638 0.24950 2.98624 0.47531 0.25000 2.98378 0.46432 0.25051 2.98115 0.45340 0.25101 2.97837 0.44257 0.25152 2.97543 0.43183 0.25203 2.97233 0.42117 0.25255 2.96907 0.41060 0.25306 2.96567 0.40013 0.25358 2.96211 0.38976 0.25410 2.95841 0.37949 0.25462 2.95457 0.36932 0.25514 2.95059 0.35926 0.25567 2.94647 0.34931 0.25620 2.94221 0.33947 0.25673 2.93783 0.32975 0.25726 2.93331 0.32014 0.25780 2.92867 0.31066 0.25833 2.92390 0.30129 0.25887 2.91902 0.29205 0.25941 2.91402 0.28293 0.25996 2.90891 0.27395 0.26050 2.90369 0.26509 0.26105 2.89836 0.25636 0.26160 2.89292 0.24777 0.26216 2.88739 0.23931 0.26271 2.88176 0.23099 0.26327 2.87604 0.22281 0.26383 2.87023 0.21477 0.26439 2.86433 0.20686 0.26496 2.85835 0.19910 0.26552 2.85228 0.19148 0.26609 2.84614 0.18401 0.26667 2.83993 0.17668 0.26724 2.83365 0.16950 0.26782 2.82730 0.16246 0.26840 2.82089 0.15557 0.26898 2.81441 0.14883 0.26957 2.80788 0.14223 0.27015 2.80130 0.13579 0.27074 2.79467 0.12950 0.27133 2.78799 0.12335 0.27193 2.78126 0.11736 0.27253 2.77450 0.11152 0.27313 2.76770 0.10583 0.27373 2.76087 0.10029 0.27434 2.75400 0.09490 0.27494 2.74711 0.08966 0.27556 2.74019 0.08458 0.27617 2.73326 0.07964 0.27679 2.72630 0.07486 0.27740 2.71934 0.07023 0.27803 2.71236 0.06575 0.27865 2.70537 0.06143 0.27928 2.69838 0.05725 0.27991 2.69139 0.05322 0.28054 2.68440 0.04935 0.28118 2.67741 0.04562 0.28182 2.67044 0.04205 0.28246 2.66347 0.03862 0.28311 2.65652 0.03535 0.28375 2.64959 0.03222 0.28440 2.64268 0.02924 0.28506 2.63580 0.02641 0.28571 2.62895 0.02373 0.28637 2.62213 0.02119 0.28704 2.61535 0.01880 0.28770 2.60860 0.01656 0.28837 2.60190 0.01446 0.28904 2.59525 0.01251 0.28972 2.58865 0.01070 0.29040 2.58211 0.00903 0.29108 2.57563 0.00751 0.29176 2.56922 0.00613 0.29245 2.56288 0.00490 0.29314 2.55662 0.00380 0.29384 2.55044 0.00284 0.29454 2.54435 0.00203 0.29524 2.53836 0.00135 0.29594 2.53248 8.09980E-4 0.29665 2.52672 4.08307E-4 0.29736 2.52109 1.43281E-4 0.29808 2.51562 1.40695E-5 0.29880 2.51037 0 0.29952 2.50533 0 0.30024 2.50045 0 0.30097 2.49570 0 0.30170 2.49107 0 0.30244 2.48655 0 0.30318 2.48213 0 0.30392 2.47780 0 0.30467 2.47356 0 0.30542 2.46941 0 0.30617 2.46534 0 0.30693 2.46134 0 0.30769 2.45741 0 0.30846 2.45355 0 0.30923 2.44976 0 0.31000 2.44603 0 0.31078 2.44236 0 0.31156 2.43875 0 0.31234 2.43519 0 0.31313 2.43169 0 0.31392 2.42825 0 0.31472 2.42485 0 0.31552 2.42151 0 0.31633 2.41821 0 0.31714 2.41496 0 0.31795 2.41175 0 0.31877 2.40859 0 0.31959 2.40547 0 0.32041 2.40239 0 0.32124 2.39936 0 0.32208 2.39636 0 0.32292 2.39340 0 0.32376 2.39048 0 0.32461 2.38760 0 0.32546 2.38475 0 0.32632 2.38193 0 0.32718 2.37915 0 0.32804 2.37641 0 0.32891 2.37370 0 0.32979 2.37102 0 0.33067 2.36837 0 0.33155 2.36575 0 0.33244 2.36316 0 0.33333 2.36060 0 0.33423 2.35807 0 0.33514 2.35556 0 0.33604 2.35309 0 0.33696 2.35064 0 0.33787 2.34822 0 0.33880 2.34582 0 0.33973 2.34345 0 0.34066 2.34111 0 0.34160 2.33879 0 0.34254 2.33649 0 0.34349 2.33422 0 0.34444 2.33197 0 0.34540 2.32975 0 0.34637 2.32755 0 0.34734 2.32537 0 0.34831 2.32321 0 0.34930 2.32107 0 0.35028 2.31896 0 0.35127 2.31686 0 0.35227 2.31479 0 0.35328 2.31273 0 0.35429 2.31070 0 0.35530 2.30868 0 0.35632 2.30668 0 0.35735 2.30471 0 0.35838 2.30275 0 0.35942 2.30081 0 0.36047 2.29889 0 0.36152 2.29698 0 0.36257 2.29510 0 0.36364 2.29323 0 0.36471 2.29137 0 0.36578 2.28954 0 0.36686 2.28772 0 0.36795 2.28592 0 0.36905 2.28413 0 0.37015 2.28236 0 0.37126 2.28060 0 0.37237 2.27886 0 0.37349 2.27714 0 0.37462 2.27543 0 0.37576 2.27374 0 0.37690 2.27206 0 0.37805 2.27039 0 0.37920 2.26874 0 0.38037 2.26710 0 0.38154 2.26548 0 0.38272 2.26387 0 0.38390 2.26228 0 0.38509 2.26069 0 0.38629 2.25912 0 0.38750 2.25757 0 0.38871 2.25603 0 0.38994 2.25450 0 0.39117 2.25298 0 0.39241 2.25147 0 0.39365 2.24998 0 0.39490 2.24850 0 0.39617 2.24703 0 0.39744 2.24557 0 0.39871 2.24413 0 0.40000 2.24270 0 0.40129 2.24127 0 0.40260 2.23986 0 0.40391 2.23846 0 0.40523 2.23708 0 0.40656 2.23570 0 0.40789 2.23433 0 0.40924 2.23298 0 0.41060 2.23163 0 0.41196 2.23030 0 0.41333 2.22897 0 0.41472 2.22766 0 0.41611 2.22636 0 0.41751 2.22506 0 0.41892 2.22378 0 0.42034 2.22250 0 0.42177 2.22124 0 0.42321 2.21999 0 0.42466 2.21874 0 0.42612 2.21751 0 0.42759 2.21628 0 0.42907 2.21507 0 0.43056 2.21386 0 0.43206 2.21266 0 0.43357 2.21147 0 0.43509 2.21029 0 0.43662 2.20912 0 0.43816 2.20796 0 0.43972 2.20680 0 0.44128 2.20566 0 0.44286 2.20452 0 0.44444 2.20339 0 0.44604 2.20227 0 0.44765 2.20116 0 0.44928 2.20006 0 0.45091 2.19896 0 0.45255 2.19788 0 0.45421 2.19680 0 0.45588 2.19573 0 0.45756 2.19466 0 0.45926 2.19361 0 0.46097 2.19256 0 0.46269 2.19152 0 0.46442 2.19049 0 0.46617 2.18946 0 0.46792 2.18844 0 0.46970 2.18743 0 0.47148 2.18643 0 0.47328 2.18543 0 0.47510 2.18444 0 0.47692 2.18346 0 0.47876 2.18249 0 0.48062 2.18152 0 0.48249 2.18056 0 0.48438 2.17961 0 0.48627 2.17866 0 0.48819 2.17772 0 0.49012 2.17679 0 0.49206 2.17586 0 0.49402 2.17494 0 0.49600 2.17403 0 0.49799 2.17312 0 0.50000 2.17222 0 0.50202 2.17133 0 0.50407 2.17044 0 0.50612 2.16956 0 0.50820 2.16868 0 0.51029 2.16781 0 0.51240 2.16695 0 0.51452 2.16610 0 0.51667 2.16525 0 0.51883 2.16440 0 0.52101 2.16356 0 0.52321 2.16273 0 0.52542 2.16190 0 0.52766 2.16108 0 0.52991 2.16027 0 0.53219 2.15946 0 0.53448 2.15866 0 0.53680 2.15786 0 0.53913 2.15707 0 0.54148 2.15628 0 0.54386 2.15550 0 0.54626 2.15473 0 0.54867 2.15396 0 0.55111 2.15319 0 0.55357 2.15243 0 0.55605 2.15168 0 0.55856 2.15093 0 0.56109 2.15019 0 0.56364 2.14945 0 0.56621 2.14872 0 0.56881 2.14799 0 0.57143 2.14727 0 0.57407 2.14656 0 0.57674 2.14584 0 0.57944 2.14514 0 0.58216 2.14444 0 0.58491 2.14374 0 0.58768 2.14305 0 0.59048 2.14236 0 0.59330 2.14168 0 0.59615 2.14101 0 0.59903 2.14033 0 0.60194 2.13967 0 0.60488 2.13901 0 0.60784 2.13835 0 0.61084 2.13770 0 0.61386 2.13705 0 0.61692 2.13640 0 0.62000 2.13577 0 0.62312 2.13513 0 0.62626 2.13450 0 0.62944 2.13388 0 0.63265 2.13326 0 0.63590 2.13264 0 0.63918 2.13203 0 0.64249 2.13142 0 0.64583 2.13082 0 0.64921 2.13022 0 0.65263 2.12963 0 0.65608 2.12904 0 0.65957 2.12846 0 0.66310 2.12788 0 0.66667 2.12730 0 0.67027 2.12673 0 0.67391 2.12616 0 0.67760 2.12560 0 0.68132 2.12504 0 0.68508 2.12448 0 0.68889 2.12393 0 0.69274 2.12339 0 0.69663 2.12284 0 0.70056 2.12231 0 0.70455 2.12177 0 0.70857 2.12124 0 0.71264 2.12071 0 0.71676 2.12019 0 0.72093 2.11967 0 0.72515 2.11916 0 0.72941 2.11865 0 0.73373 2.11814 0 0.73810 2.11764 0 0.74251 2.11714 0 0.74699 2.11665 0 0.75152 2.11615 0 0.75610 2.11567 0 0.76074 2.11518 0 0.76543 2.11470 0 0.77019 2.11423 0 0.77500 2.11376 0 0.77987 2.11329 0 0.78481 2.11282 0 0.78981 2.11236 0 0.79487 2.11191 0 0.80000 2.11145 0 0.80519 2.11100 0 0.81046 2.11056 0 0.81579 2.11011 0 0.82119 2.10967 0 0.82667 2.10924 0 0.83221 2.10881 0 0.83784 2.10838 0 0.84354 2.10795 0 0.84932 2.10753 0 0.85517 2.10711 0 0.86111 2.10670 0 0.86713 2.10629 0 0.87324 2.10588 0 0.87943 2.10548 0 0.88571 2.10508 0 0.89209 2.10468 0 0.89855 2.10429 0 0.90511 2.10390 0 0.91176 2.10351 0 0.91852 2.10313 0 0.92537 2.10275 0 0.93233 2.10237 0 0.93939 2.10200 0 0.94656 2.10163 0 0.95385 2.10126 0 0.96124 2.10090 0 0.96875 2.10054 0 0.97638 2.10018 0 0.98413 2.09983 0 0.99200 2.09948 0 1.00000 2.09913 0 1.00813 2.09879 0 1.01639 2.09845 0 1.02479 2.09811 0 1.03333 2.09777 0 1.04202 2.09744 0 1.05085 2.09711 0 1.05983 2.09679 0 1.06897 2.09647 0 1.07826 2.09615 0 1.08772 2.09583 0 1.09735 2.09552 0 1.10714 2.09521 0 1.11712 2.09491 0 1.12727 2.09460 0 1.13761 2.09430 0 1.14815 2.09401 0 1.15888 2.09371 0 1.16981 2.09342 0 1.18095 2.09314 0 1.19231 2.09285 0 1.20388 2.09257 0 1.21569 2.09229 0 1.22772 2.09202 0 1.24000 2.09174 0