# 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. As deposited. DATA: - type: tabulated nk data: | 0.20667 2.54491 1.34456 0.20701 2.55244 1.34060 0.20736 2.55996 1.33655 0.20771 2.56748 1.33241 0.20805 2.57500 1.32818 0.20840 2.58252 1.32386 0.20875 2.59002 1.31945 0.20911 2.59752 1.31495 0.20946 2.60501 1.31036 0.20981 2.61249 1.30567 0.21017 2.61996 1.30089 0.21053 2.62742 1.29602 0.21088 2.63485 1.29105 0.21124 2.64228 1.28598 0.21160 2.64968 1.28082 0.21197 2.65707 1.27556 0.21233 2.66443 1.27021 0.21269 2.67177 1.26476 0.21306 2.67909 1.25921 0.21343 2.68638 1.25356 0.21379 2.69364 1.24781 0.21416 2.70087 1.24196 0.21453 2.70807 1.23601 0.21490 2.71523 1.22996 0.21528 2.72236 1.22381 0.21565 2.72946 1.21756 0.21603 2.73651 1.21121 0.21640 2.74352 1.20476 0.21678 2.75049 1.19821 0.21716 2.75741 1.19155 0.21754 2.76428 1.18480 0.21793 2.77110 1.17794 0.21831 2.77788 1.17098 0.21869 2.78460 1.16392 0.21908 2.79126 1.15676 0.21947 2.79786 1.14950 0.21986 2.80440 1.14213 0.22025 2.81088 1.13467 0.22064 2.81730 1.12711 0.22103 2.82365 1.11944 0.22143 2.82993 1.11168 0.22182 2.83614 1.10382 0.22222 2.84227 1.09586 0.22262 2.84833 1.08781 0.22302 2.85431 1.07966 0.22342 2.86020 1.07141 0.22383 2.86602 1.06306 0.22423 2.87175 1.05463 0.22464 2.87739 1.04610 0.22505 2.88294 1.03747 0.22545 2.88840 1.02876 0.22587 2.89377 1.01996 0.22628 2.89904 1.01106 0.22669 2.90421 1.00208 0.22711 2.90928 0.99302 0.22752 2.91424 0.98387 0.22794 2.91910 0.97464 0.22836 2.92385 0.96532 0.22878 2.92850 0.95593 0.22921 2.93303 0.94646 0.22963 2.93744 0.93691 0.23006 2.94174 0.92728 0.23048 2.94592 0.91759 0.23091 2.94998 0.90782 0.23134 2.95392 0.89799 0.23178 2.95773 0.88809 0.23221 2.96142 0.87812 0.23265 2.96498 0.86809 0.23308 2.96841 0.85801 0.23352 2.97171 0.84786 0.23396 2.97488 0.83766 0.23440 2.97791 0.82741 0.23485 2.98081 0.81711 0.23529 2.98356 0.80676 0.23574 2.98618 0.79636 0.23619 2.98866 0.78592 0.23664 2.99099 0.77545 0.23709 2.99318 0.76494 0.23755 2.99523 0.75439 0.23800 2.99713 0.74381 0.23846 2.99889 0.73320 0.23892 3.00050 0.72257 0.23938 3.00195 0.71192 0.23985 3.00326 0.70125 0.24031 3.00442 0.69056 0.24078 3.00543 0.67986 0.24125 3.00629 0.66915 0.24172 3.00700 0.65843 0.24219 3.00755 0.64771 0.24266 3.00795 0.63698 0.24314 3.00820 0.62626 0.24361 3.00829 0.61555 0.24409 3.00823 0.60484 0.24458 3.00802 0.59415 0.24506 3.00766 0.58347 0.24554 3.00714 0.57281 0.24603 3.00647 0.56218 0.24652 3.00564 0.55157 0.24701 3.00467 0.54098 0.24750 3.00354 0.53043 0.24800 3.00227 0.51991 0.24850 3.00084 0.50943 0.24900 2.99926 0.49900 0.24950 2.99754 0.48860 0.25000 2.99566 0.47825 0.25051 2.99364 0.46796 0.25101 2.99148 0.45771 0.25152 2.98916 0.44753 0.25203 2.98671 0.43740 0.25255 2.98411 0.42734 0.25306 2.98138 0.41734 0.25358 2.97850 0.40740 0.25410 2.97549 0.39754 0.25462 2.97234 0.38776 0.25514 2.96905 0.37805 0.25567 2.96563 0.36842 0.25620 2.96208 0.35887 0.25673 2.95841 0.34940 0.25726 2.95460 0.34003 0.25780 2.95067 0.33074 0.25833 2.94661 0.32155 0.25887 2.94244 0.31245 0.25941 2.93814 0.30345 0.25996 2.93373 0.29455 0.26050 2.92920 0.28575 0.26105 2.92456 0.27705 0.26160 2.91981 0.26846 0.26216 2.91495 0.25998 0.26271 2.90998 0.25161 0.26327 2.90492 0.24335 0.26383 2.89975 0.23520 0.26439 2.89448 0.22718 0.26496 2.88912 0.21927 0.26552 2.88366 0.21148 0.26609 2.87811 0.20381 0.26667 2.87248 0.19627 0.26724 2.86676 0.18885 0.26782 2.86096 0.18156 0.26840 2.85507 0.17439 0.26898 2.84911 0.16736 0.26957 2.84308 0.16046 0.27015 2.83698 0.15369 0.27074 2.83080 0.14705 0.27133 2.82456 0.14055 0.27193 2.81826 0.13418 0.27253 2.81190 0.12796 0.27313 2.80548 0.12187 0.27373 2.79901 0.11592 0.27434 2.79248 0.11011 0.27494 2.78591 0.10444 0.27556 2.77929 0.09892 0.27617 2.77263 0.09354 0.27679 2.76593 0.08830 0.27740 2.75920 0.08321 0.27803 2.75243 0.07827 0.27865 2.74564 0.07347 0.27928 2.73882 0.06882 0.27991 2.73197 0.06432 0.28054 2.72511 0.05997 0.28118 2.71823 0.05576 0.28182 2.71134 0.05171 0.28246 2.70443 0.04780 0.28311 2.69753 0.04405 0.28375 2.69062 0.04045 0.28440 2.68371 0.03700 0.28506 2.67680 0.03370 0.28571 2.66991 0.03056 0.28637 2.66303 0.02757 0.28704 2.65616 0.02473 0.28770 2.64932 0.02204 0.28837 2.64250 0.01951 0.28904 2.63571 0.01713 0.28972 2.62896 0.01491 0.29040 2.62225 0.01284 0.29108 2.61557 0.01093 0.29176 2.60895 0.00917 0.29245 2.60239 0.00756 0.29314 2.59588 0.00611 0.29384 2.58944 0.00481 0.29454 2.58308 0.00367 0.29524 2.57680 0.00269 0.29594 2.57061 0.00185 0.29665 2.56453 0.00117 0.29736 2.55855 6.49949E-4 0.29808 2.55271 2.79841E-4 0.29880 2.54702 6.34966E-5 0.29952 2.54152 0 0.30024 2.53629 0 0.30097 2.53123 0 0.30170 2.52633 0 0.30244 2.52155 0 0.30318 2.51690 0 0.30392 2.51236 0 0.30467 2.50791 0 0.30542 2.50356 0 0.30617 2.49930 0 0.30693 2.49513 0 0.30769 2.49103 0 0.30846 2.48700 0 0.30923 2.48305 0 0.31000 2.47917 0 0.31078 2.47536 0 0.31156 2.47160 0 0.31234 2.46791 0 0.31313 2.46428 0 0.31392 2.46070 0 0.31472 2.45718 0 0.31552 2.45371 0 0.31633 2.45029 0 0.31714 2.44692 0 0.31795 2.44360 0 0.31877 2.44033 0 0.31959 2.43710 0 0.32041 2.43391 0 0.32124 2.43077 0 0.32208 2.42767 0 0.32292 2.42461 0 0.32376 2.42159 0 0.32461 2.41861 0 0.32546 2.41567 0 0.32632 2.41276 0 0.32718 2.40989 0 0.32804 2.40705 0 0.32891 2.40425 0 0.32979 2.40148 0 0.33067 2.39874 0 0.33155 2.39604 0 0.33244 2.39336 0 0.33333 2.39072 0 0.33423 2.38811 0 0.33514 2.38552 0 0.33604 2.38297 0 0.33696 2.38044 0 0.33787 2.37794 0 0.33880 2.37547 0 0.33973 2.37302 0 0.34066 2.37060 0 0.34160 2.36821 0 0.34254 2.36584 0 0.34349 2.36350 0 0.34444 2.36118 0 0.34540 2.35888 0 0.34637 2.35661 0 0.34734 2.35436 0 0.34831 2.35213 0 0.34930 2.34992 0 0.35028 2.34774 0 0.35127 2.34558 0 0.35227 2.34344 0 0.35328 2.34132 0 0.35429 2.33922 0 0.35530 2.33714 0 0.35632 2.33508 0 0.35735 2.33304 0 0.35838 2.33102 0 0.35942 2.32902 0 0.36047 2.32703 0 0.36152 2.32507 0 0.36257 2.32312 0 0.36364 2.32119 0 0.36471 2.31928 0 0.36578 2.31738 0 0.36686 2.31551 0 0.36795 2.31365 0 0.36905 2.31180 0 0.37015 2.30997 0 0.37126 2.30816 0 0.37237 2.30637 0 0.37349 2.30459 0 0.37462 2.30282 0 0.37576 2.30107 0 0.37690 2.29934 0 0.37805 2.29762 0 0.37920 2.29591 0 0.38037 2.29422 0 0.38154 2.29255 0 0.38272 2.29089 0 0.38390 2.28924 0 0.38509 2.28760 0 0.38629 2.28598 0 0.38750 2.28438 0 0.38871 2.28278 0 0.38994 2.28120 0 0.39117 2.27963 0 0.39241 2.27808 0 0.39365 2.27654 0 0.39490 2.27501 0 0.39617 2.27349 0 0.39744 2.27198 0 0.39871 2.27049 0 0.40000 2.26901 0 0.40129 2.26754 0 0.40260 2.26608 0 0.40391 2.26464 0 0.40523 2.26320 0 0.40656 2.26178 0 0.40789 2.26037 0 0.40924 2.25896 0 0.41060 2.25757 0 0.41196 2.25619 0 0.41333 2.25483 0 0.41472 2.25347 0 0.41611 2.25212 0 0.41751 2.25078 0 0.41892 2.24945 0 0.42034 2.24814 0 0.42177 2.24683 0 0.42321 2.24553 0 0.42466 2.24425 0 0.42612 2.24297 0 0.42759 2.24170 0 0.42907 2.24044 0 0.43056 2.23919 0 0.43206 2.23795 0 0.43357 2.23672 0 0.43509 2.23550 0 0.43662 2.23429 0 0.43816 2.23309 0 0.43972 2.23189 0 0.44128 2.23071 0 0.44286 2.22953 0 0.44444 2.22836 0 0.44604 2.22720 0 0.44765 2.22605 0 0.44928 2.22491 0 0.45091 2.22378 0 0.45255 2.22265 0 0.45421 2.22153 0 0.45588 2.22042 0 0.45756 2.21932 0 0.45926 2.21823 0 0.46097 2.21714 0 0.46269 2.21607 0 0.46442 2.21500 0 0.46617 2.21393 0 0.46792 2.21288 0 0.46970 2.21183 0 0.47148 2.21079 0 0.47328 2.20976 0 0.47510 2.20874 0 0.47692 2.20772 0 0.47876 2.20671 0 0.48062 2.20571 0 0.48249 2.20471 0 0.48438 2.20373 0 0.48627 2.20274 0 0.48819 2.20177 0 0.49012 2.20080 0 0.49206 2.19984 0 0.49402 2.19889 0 0.49600 2.19794 0 0.49799 2.19700 0 0.50000 2.19607 0 0.50202 2.19514 0 0.50407 2.19422 0 0.50612 2.19331 0 0.50820 2.19240 0 0.51029 2.19150 0 0.51240 2.19060 0 0.51452 2.18972 0 0.51667 2.18883 0 0.51883 2.18796 0 0.52101 2.18709 0 0.52321 2.18622 0 0.52542 2.18537 0 0.52766 2.18452 0 0.52991 2.18367 0 0.53219 2.18283 0 0.53448 2.18200 0 0.53680 2.18117 0 0.53913 2.18035 0 0.54148 2.17953 0 0.54386 2.17872 0 0.54626 2.17792 0 0.54867 2.17712 0 0.55111 2.17633 0 0.55357 2.17554 0 0.55605 2.17476 0 0.55856 2.17398 0 0.56109 2.17321 0 0.56364 2.17244 0 0.56621 2.17168 0 0.56881 2.17093 0 0.57143 2.17018 0 0.57407 2.16943 0 0.57674 2.16870 0 0.57944 2.16796 0 0.58216 2.16723 0 0.58491 2.16651 0 0.58768 2.16579 0 0.59048 2.16508 0 0.59330 2.16437 0 0.59615 2.16367 0 0.59903 2.16297 0 0.60194 2.16228 0 0.60488 2.16159 0 0.60784 2.16091 0 0.61084 2.16023 0 0.61386 2.15956 0 0.61692 2.15889 0 0.62000 2.15822 0 0.62312 2.15757 0 0.62626 2.15691 0 0.62944 2.15626 0 0.63265 2.15562 0 0.63590 2.15498 0 0.63918 2.15434 0 0.64249 2.15371 0 0.64583 2.15309 0 0.64921 2.15246 0 0.65263 2.15185 0 0.65608 2.15123 0 0.65957 2.15063 0 0.66310 2.15002 0 0.66667 2.14942 0 0.67027 2.14883 0 0.67391 2.14824 0 0.67760 2.14765 0 0.68132 2.14707 0 0.68508 2.14649 0 0.68889 2.14592 0 0.69274 2.14535 0 0.69663 2.14479 0 0.70056 2.14423 0 0.70455 2.14367 0 0.70857 2.14312 0 0.71264 2.14257 0 0.71676 2.14203 0 0.72093 2.14149 0 0.72515 2.14095 0 0.72941 2.14042 0 0.73373 2.13990 0 0.73810 2.13937 0 0.74251 2.13885 0 0.74699 2.13834 0 0.75152 2.13783 0 0.75610 2.13732 0 0.76074 2.13682 0 0.76543 2.13632 0 0.77019 2.13582 0 0.77500 2.13533 0 0.77987 2.13484 0 0.78481 2.13436 0 0.78981 2.13388 0 0.79487 2.13340 0 0.80000 2.13293 0 0.80519 2.13246 0 0.81046 2.13200 0 0.81579 2.13154 0 0.82119 2.13108 0 0.82667 2.13063 0 0.83221 2.13018 0 0.83784 2.12973 0 0.84354 2.12929 0 0.84932 2.12885 0 0.85517 2.12842 0 0.86111 2.12798 0 0.86713 2.12756 0 0.87324 2.12713 0 0.87943 2.12671 0 0.88571 2.12629 0 0.89209 2.12588 0 0.89855 2.12547 0 0.90511 2.12506 0 0.91176 2.12466 0 0.91852 2.12426 0 0.92537 2.12387 0 0.93233 2.12347 0 0.93939 2.12308 0 0.94656 2.12270 0 0.95385 2.12232 0 0.96124 2.12194 0 0.96875 2.12156 0 0.97638 2.12119 0 0.98413 2.12082 0 0.99200 2.12046 0 1.00000 2.12010 0 1.00813 2.11974 0 1.01639 2.11938 0 1.02479 2.11903 0 1.03333 2.11868 0 1.04202 2.11834 0 1.05085 2.11800 0 1.05983 2.11766 0 1.06897 2.11732 0 1.07826 2.11699 0 1.08772 2.11666 0 1.09735 2.11634 0 1.10714 2.11601 0 1.11712 2.11569 0 1.12727 2.11538 0 1.13761 2.11507 0 1.14815 2.11476 0 1.15888 2.11445 0 1.16981 2.11415 0 1.18095 2.11385 0 1.19231 2.11355 0 1.20388 2.11326 0 1.21569 2.11297 0 1.22772 2.11268 0 1.24000 2.11239 0