# 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 16 sccm. As deposited. DATA: - type: tabulated nk data: | 0.20667 2.52527 1.33819 0.20701 2.53271 1.33447 0.20736 2.54014 1.33066 0.20771 2.54758 1.32677 0.20805 2.55502 1.32279 0.20840 2.56245 1.31872 0.20875 2.56989 1.31457 0.20911 2.57732 1.31033 0.20946 2.58474 1.30599 0.20981 2.59216 1.30157 0.21017 2.59957 1.29706 0.21053 2.60697 1.29245 0.21088 2.61437 1.28776 0.21124 2.62175 1.28297 0.21160 2.62912 1.27808 0.21197 2.63647 1.27311 0.21233 2.64381 1.26803 0.21269 2.65113 1.26287 0.21306 2.65843 1.25760 0.21343 2.66571 1.25224 0.21379 2.67296 1.24678 0.21416 2.68020 1.24123 0.21453 2.68740 1.23557 0.21490 2.69458 1.22982 0.21528 2.70173 1.22396 0.21565 2.70885 1.21801 0.21603 2.71593 1.21196 0.21640 2.72298 1.20581 0.21678 2.72999 1.19955 0.21716 2.73697 1.19320 0.21754 2.74390 1.18674 0.21793 2.75079 1.18019 0.21831 2.75763 1.17353 0.21869 2.76443 1.16677 0.21908 2.77118 1.15991 0.21947 2.77787 1.15295 0.21986 2.78452 1.14588 0.22025 2.79110 1.13872 0.22064 2.79763 1.13145 0.22103 2.80410 1.12409 0.22143 2.81051 1.11662 0.22182 2.81685 1.10905 0.22222 2.82313 1.10138 0.22262 2.82933 1.09361 0.22302 2.83547 1.08575 0.22342 2.84153 1.07778 0.22383 2.84752 1.06972 0.22423 2.85343 1.06156 0.22464 2.85925 1.05330 0.22505 2.86500 1.04495 0.22545 2.87066 1.03650 0.22587 2.87623 1.02796 0.22628 2.88171 1.01933 0.22669 2.88710 1.01060 0.22711 2.89240 1.00178 0.22752 2.89760 0.99288 0.22794 2.90270 0.98388 0.22836 2.90770 0.97480 0.22878 2.91259 0.96563 0.22921 2.91738 0.95638 0.22963 2.92206 0.94705 0.23006 2.92663 0.93763 0.23048 2.93109 0.92814 0.23091 2.93543 0.91857 0.23134 2.93965 0.90892 0.23178 2.94376 0.89920 0.23221 2.94775 0.88941 0.23265 2.95161 0.87955 0.23308 2.95535 0.86962 0.23352 2.95895 0.85962 0.23396 2.96244 0.84957 0.23440 2.96578 0.83945 0.23485 2.96900 0.82927 0.23529 2.97208 0.81903 0.23574 2.97503 0.80875 0.23619 2.97784 0.79841 0.23664 2.98051 0.78802 0.23709 2.98303 0.77759 0.23755 2.98542 0.76711 0.23800 2.98766 0.75660 0.23846 2.98975 0.74604 0.23892 2.99170 0.73545 0.23938 2.99350 0.72483 0.23985 2.99515 0.71419 0.24031 2.99665 0.70351 0.24078 2.99800 0.69281 0.24125 2.99920 0.68210 0.24172 3.00025 0.67136 0.24219 3.00114 0.66062 0.24266 3.00187 0.64986 0.24314 3.00246 0.63910 0.24361 3.00288 0.62833 0.24409 3.00315 0.61756 0.24458 3.00327 0.60680 0.24506 3.00323 0.59604 0.24554 3.00303 0.58529 0.24603 3.00267 0.57456 0.24652 3.00216 0.56384 0.24701 3.00150 0.55314 0.24750 3.00067 0.54246 0.24800 2.99969 0.53181 0.24850 2.99856 0.52119 0.24900 2.99726 0.51060 0.24950 2.99582 0.50005 0.25000 2.99422 0.48954 0.25051 2.99247 0.47907 0.25101 2.99056 0.46865 0.25152 2.98850 0.45828 0.25203 2.98630 0.44796 0.25255 2.98394 0.43769 0.25306 2.98143 0.42749 0.25358 2.97878 0.41734 0.25410 2.97598 0.40727 0.25462 2.97304 0.39726 0.25514 2.96995 0.38732 0.25567 2.96673 0.37746 0.25620 2.96336 0.36768 0.25673 2.95986 0.35797 0.25726 2.95621 0.34835 0.25780 2.95244 0.33882 0.25833 2.94853 0.32938 0.25887 2.94449 0.32003 0.25941 2.94032 0.31077 0.25996 2.93603 0.30161 0.26050 2.93161 0.29255 0.26105 2.92707 0.28360 0.26160 2.92241 0.27475 0.26216 2.91763 0.26600 0.26271 2.91274 0.25737 0.26327 2.90773 0.24885 0.26383 2.90261 0.24045 0.26439 2.89739 0.23216 0.26496 2.89206 0.22399 0.26552 2.88663 0.21594 0.26609 2.88110 0.20802 0.26667 2.87547 0.20022 0.26724 2.86975 0.19255 0.26782 2.86393 0.18501 0.26840 2.85803 0.17760 0.26898 2.85204 0.17032 0.26957 2.84597 0.16318 0.27015 2.83982 0.15618 0.27074 2.83360 0.14931 0.27133 2.82729 0.14258 0.27193 2.82092 0.13600 0.27253 2.81448 0.12955 0.27313 2.80798 0.12326 0.27373 2.80142 0.11710 0.27434 2.79479 0.11109 0.27494 2.78812 0.10524 0.27556 2.78139 0.09953 0.27617 2.77461 0.09397 0.27679 2.76779 0.08856 0.27740 2.76093 0.08331 0.27803 2.75403 0.07821 0.27865 2.74709 0.07326 0.27928 2.74013 0.06847 0.27991 2.73313 0.06383 0.28054 2.72612 0.05936 0.28118 2.71908 0.05504 0.28182 2.71203 0.05088 0.28246 2.70497 0.04688 0.28311 2.69789 0.04304 0.28375 2.69082 0.03936 0.28440 2.68374 0.03584 0.28506 2.67667 0.03249 0.28571 2.66961 0.02930 0.28637 2.66256 0.02627 0.28704 2.65552 0.02340 0.28770 2.64851 0.02070 0.28837 2.64153 0.01816 0.28904 2.63458 0.01579 0.28972 2.62766 0.01358 0.29040 2.62079 0.01154 0.29108 2.61397 0.00967 0.29176 2.60720 0.00796 0.29245 2.60049 0.00641 0.29314 2.59386 0.00504 0.29384 2.58730 0.00383 0.29454 2.58082 0.00278 0.29524 2.57444 0.00190 0.29594 2.56817 0.00119 0.29665 2.56202 6.44510E-4 0.29736 2.55600 2.65013E-4 0.29808 2.55015 5.14929E-5 0.29880 2.54452 0 0.29952 2.53916 0 0.30024 2.53399 0 0.30097 2.52897 0 0.30170 2.52409 0 0.30244 2.51933 0 0.30318 2.51468 0 0.30392 2.51015 0 0.30467 2.50570 0 0.30542 2.50135 0 0.30617 2.49709 0 0.30693 2.49291 0 0.30769 2.48881 0 0.30846 2.48478 0 0.30923 2.48083 0 0.31000 2.47694 0 0.31078 2.47312 0 0.31156 2.46936 0 0.31234 2.46566 0 0.31313 2.46202 0 0.31392 2.45843 0 0.31472 2.45490 0 0.31552 2.45143 0 0.31633 2.44800 0 0.31714 2.44463 0 0.31795 2.44130 0 0.31877 2.43802 0 0.31959 2.43478 0 0.32041 2.43159 0 0.32124 2.42844 0 0.32208 2.42534 0 0.32292 2.42227 0 0.32376 2.41924 0 0.32461 2.41625 0 0.32546 2.41330 0 0.32632 2.41039 0 0.32718 2.40751 0 0.32804 2.40467 0 0.32891 2.40186 0 0.32979 2.39909 0 0.33067 2.39634 0 0.33155 2.39363 0 0.33244 2.39095 0 0.33333 2.38831 0 0.33423 2.38569 0 0.33514 2.38310 0 0.33604 2.38054 0 0.33696 2.37801 0 0.33787 2.37550 0 0.33880 2.37303 0 0.33973 2.37058 0 0.34066 2.36815 0 0.34160 2.36575 0 0.34254 2.36338 0 0.34349 2.36103 0 0.34444 2.35871 0 0.34540 2.35641 0 0.34637 2.35413 0 0.34734 2.35188 0 0.34831 2.34965 0 0.34930 2.34744 0 0.35028 2.34525 0 0.35127 2.34309 0 0.35227 2.34094 0 0.35328 2.33882 0 0.35429 2.33672 0 0.35530 2.33464 0 0.35632 2.33257 0 0.35735 2.33053 0 0.35838 2.32851 0 0.35942 2.32650 0 0.36047 2.32452 0 0.36152 2.32255 0 0.36257 2.32060 0 0.36364 2.31867 0 0.36471 2.31675 0 0.36578 2.31486 0 0.36686 2.31298 0 0.36795 2.31111 0 0.36905 2.30927 0 0.37015 2.30744 0 0.37126 2.30563 0 0.37237 2.30383 0 0.37349 2.30205 0 0.37462 2.30028 0 0.37576 2.29853 0 0.37690 2.29679 0 0.37805 2.29507 0 0.37920 2.29337 0 0.38037 2.29167 0 0.38154 2.29000 0 0.38272 2.28833 0 0.38390 2.28669 0 0.38509 2.28505 0 0.38629 2.28343 0 0.38750 2.28182 0 0.38871 2.28023 0 0.38994 2.27864 0 0.39117 2.27707 0 0.39241 2.27552 0 0.39365 2.27398 0 0.39490 2.27244 0 0.39617 2.27093 0 0.39744 2.26942 0 0.39871 2.26793 0 0.40000 2.26644 0 0.40129 2.26497 0 0.40260 2.26352 0 0.40391 2.26207 0 0.40523 2.26063 0 0.40656 2.25921 0 0.40789 2.25780 0 0.40924 2.25639 0 0.41060 2.25500 0 0.41196 2.25362 0 0.41333 2.25225 0 0.41472 2.25090 0 0.41611 2.24955 0 0.41751 2.24821 0 0.41892 2.24688 0 0.42034 2.24556 0 0.42177 2.24426 0 0.42321 2.24296 0 0.42466 2.24167 0 0.42612 2.24039 0 0.42759 2.23913 0 0.42907 2.23787 0 0.43056 2.23662 0 0.43206 2.23538 0 0.43357 2.23415 0 0.43509 2.23293 0 0.43662 2.23172 0 0.43816 2.23051 0 0.43972 2.22932 0 0.44128 2.22813 0 0.44286 2.22696 0 0.44444 2.22579 0 0.44604 2.22463 0 0.44765 2.22348 0 0.44928 2.22234 0 0.45091 2.22120 0 0.45255 2.22008 0 0.45421 2.21896 0 0.45588 2.21785 0 0.45756 2.21675 0 0.45926 2.21566 0 0.46097 2.21457 0 0.46269 2.21349 0 0.46442 2.21242 0 0.46617 2.21136 0 0.46792 2.21031 0 0.46970 2.20926 0 0.47148 2.20822 0 0.47328 2.20719 0 0.47510 2.20617 0 0.47692 2.20515 0 0.47876 2.20414 0 0.48062 2.20314 0 0.48249 2.20214 0 0.48438 2.20116 0 0.48627 2.20017 0 0.48819 2.19920 0 0.49012 2.19823 0 0.49206 2.19727 0 0.49402 2.19632 0 0.49600 2.19537 0 0.49799 2.19443 0 0.50000 2.19350 0 0.50202 2.19257 0 0.50407 2.19165 0 0.50612 2.19074 0 0.50820 2.18983 0 0.51029 2.18893 0 0.51240 2.18804 0 0.51452 2.18715 0 0.51667 2.18627 0 0.51883 2.18539 0 0.52101 2.18453 0 0.52321 2.18366 0 0.52542 2.18281 0 0.52766 2.18195 0 0.52991 2.18111 0 0.53219 2.18027 0 0.53448 2.17944 0 0.53680 2.17861 0 0.53913 2.17779 0 0.54148 2.17697 0 0.54386 2.17616 0 0.54626 2.17536 0 0.54867 2.17456 0 0.55111 2.17377 0 0.55357 2.17298 0 0.55605 2.17220 0 0.55856 2.17143 0 0.56109 2.17065 0 0.56364 2.16989 0 0.56621 2.16913 0 0.56881 2.16838 0 0.57143 2.16763 0 0.57407 2.16688 0 0.57674 2.16615 0 0.57944 2.16541 0 0.58216 2.16468 0 0.58491 2.16396 0 0.58768 2.16324 0 0.59048 2.16253 0 0.59330 2.16182 0 0.59615 2.16112 0 0.59903 2.16042 0 0.60194 2.15973 0 0.60488 2.15904 0 0.60784 2.15836 0 0.61084 2.15768 0 0.61386 2.15701 0 0.61692 2.15634 0 0.62000 2.15568 0 0.62312 2.15502 0 0.62626 2.15437 0 0.62944 2.15372 0 0.63265 2.15308 0 0.63590 2.15244 0 0.63918 2.15180 0 0.64249 2.15117 0 0.64583 2.15055 0 0.64921 2.14993 0 0.65263 2.14931 0 0.65608 2.14870 0 0.65957 2.14809 0 0.66310 2.14749 0 0.66667 2.14689 0 0.67027 2.14629 0 0.67391 2.14570 0 0.67760 2.14512 0 0.68132 2.14454 0 0.68508 2.14396 0 0.68889 2.14339 0 0.69274 2.14282 0 0.69663 2.14226 0 0.70056 2.14170 0 0.70455 2.14114 0 0.70857 2.14059 0 0.71264 2.14004 0 0.71676 2.13950 0 0.72093 2.13896 0 0.72515 2.13843 0 0.72941 2.13790 0 0.73373 2.13737 0 0.73810 2.13685 0 0.74251 2.13633 0 0.74699 2.13581 0 0.75152 2.13530 0 0.75610 2.13480 0 0.76074 2.13429 0 0.76543 2.13380 0 0.77019 2.13330 0 0.77500 2.13281 0 0.77987 2.13232 0 0.78481 2.13184 0 0.78981 2.13136 0 0.79487 2.13089 0 0.80000 2.13041 0 0.80519 2.12995 0 0.81046 2.12948 0 0.81579 2.12902 0 0.82119 2.12856 0 0.82667 2.12811 0 0.83221 2.12766 0 0.83784 2.12722 0 0.84354 2.12678 0 0.84932 2.12634 0 0.85517 2.12590 0 0.86111 2.12547 0 0.86713 2.12504 0 0.87324 2.12462 0 0.87943 2.12420 0 0.88571 2.12378 0 0.89209 2.12337 0 0.89855 2.12296 0 0.90511 2.12256 0 0.91176 2.12215 0 0.91852 2.12175 0 0.92537 2.12136 0 0.93233 2.12097 0 0.93939 2.12058 0 0.94656 2.12019 0 0.95385 2.11981 0 0.96124 2.11943 0 0.96875 2.11906 0 0.97638 2.11869 0 0.98413 2.11832 0 0.99200 2.11795 0 1.00000 2.11759 0 1.00813 2.11724 0 1.01639 2.11688 0 1.02479 2.11653 0 1.03333 2.11618 0 1.04202 2.11584 0 1.05085 2.11550 0 1.05983 2.11516 0 1.06897 2.11482 0 1.07826 2.11449 0 1.08772 2.11416 0 1.09735 2.11384 0 1.10714 2.11352 0 1.11712 2.11320 0 1.12727 2.11288 0 1.13761 2.11257 0 1.14815 2.11226 0 1.15888 2.11196 0 1.16981 2.11165 0 1.18095 2.11135 0 1.19231 2.11106 0 1.20388 2.11076 0 1.21569 2.11047 0 1.22772 2.11019 0 1.24000 2.10990 0