# 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 450 °C. DATA: - type: tabulated nk data: | 0.20667 2.50052 1.38634 0.20701 2.50884 1.38272 0.20736 2.51717 1.37899 0.20771 2.52551 1.37516 0.20805 2.53385 1.37123 0.20840 2.54220 1.36720 0.20875 2.55055 1.36306 0.20911 2.55890 1.35881 0.20946 2.56725 1.35446 0.20981 2.57560 1.35000 0.21017 2.58394 1.34543 0.21053 2.59228 1.34074 0.21088 2.60061 1.33595 0.21124 2.60894 1.33105 0.21160 2.61725 1.32603 0.21197 2.62555 1.32090 0.21233 2.63383 1.31565 0.21269 2.64210 1.31029 0.21306 2.65034 1.30481 0.21343 2.65857 1.29922 0.21379 2.66677 1.29350 0.21416 2.67495 1.28767 0.21453 2.68309 1.28171 0.21490 2.69121 1.27564 0.21528 2.69929 1.26945 0.21565 2.70734 1.26313 0.21603 2.71535 1.25669 0.21640 2.72332 1.25013 0.21678 2.73125 1.24345 0.21716 2.73913 1.23664 0.21754 2.74697 1.22972 0.21793 2.75475 1.22266 0.21831 2.76248 1.21549 0.21869 2.77015 1.20819 0.21908 2.77777 1.20077 0.21947 2.78532 1.19322 0.21986 2.79281 1.18555 0.22025 2.80023 1.17776 0.22064 2.80757 1.16985 0.22103 2.81485 1.16181 0.22143 2.82205 1.15365 0.22182 2.82917 1.14537 0.22222 2.83620 1.13697 0.22262 2.84316 1.12845 0.22302 2.85002 1.11981 0.22342 2.85679 1.11106 0.22383 2.86347 1.10218 0.22423 2.87005 1.09319 0.22464 2.87653 1.08409 0.22505 2.88290 1.07487 0.22545 2.88917 1.06554 0.22587 2.89533 1.05610 0.22628 2.90137 1.04655 0.22669 2.90731 1.03689 0.22711 2.91312 1.02713 0.22752 2.91881 1.01726 0.22794 2.92437 1.00729 0.22836 2.92981 0.99722 0.22878 2.93512 0.98706 0.22921 2.94030 0.97680 0.22963 2.94534 0.96644 0.23006 2.95024 0.95600 0.23048 2.95500 0.94547 0.23091 2.95962 0.93485 0.23134 2.96409 0.92415 0.23178 2.96841 0.91337 0.23221 2.97259 0.90251 0.23265 2.97660 0.89158 0.23308 2.98047 0.88058 0.23352 2.98417 0.86951 0.23396 2.98772 0.85838 0.23440 2.99110 0.84718 0.23485 2.99432 0.83593 0.23529 2.99738 0.82462 0.23574 3.00026 0.81327 0.23619 3.00298 0.80186 0.23664 3.00553 0.79042 0.23709 3.00791 0.77893 0.23755 3.01011 0.76741 0.23800 3.01214 0.75585 0.23846 3.01399 0.74427 0.23892 3.01567 0.73267 0.23938 3.01717 0.72104 0.23985 3.01849 0.70940 0.24031 3.01963 0.69774 0.24078 3.02060 0.68608 0.24125 3.02138 0.67441 0.24172 3.02198 0.66274 0.24219 3.02241 0.65108 0.24266 3.02265 0.63943 0.24314 3.02271 0.62778 0.24361 3.02260 0.61616 0.24409 3.02230 0.60455 0.24458 3.02183 0.59297 0.24506 3.02117 0.58142 0.24554 3.02034 0.56990 0.24603 3.01933 0.55841 0.24652 3.01815 0.54697 0.24701 3.01679 0.53558 0.24750 3.01525 0.52423 0.24800 3.01355 0.51293 0.24850 3.01167 0.50169 0.24900 3.00962 0.49051 0.24950 3.00740 0.47940 0.25000 3.00502 0.46835 0.25051 3.00247 0.45737 0.25101 2.99976 0.44647 0.25152 2.99689 0.43565 0.25203 2.99386 0.42491 0.25255 2.99067 0.41425 0.25306 2.98732 0.40369 0.25358 2.98383 0.39321 0.25410 2.98018 0.38284 0.25462 2.97639 0.37255 0.25514 2.97245 0.36238 0.25567 2.96837 0.35230 0.25620 2.96415 0.34233 0.25673 2.95979 0.33248 0.25726 2.95530 0.32273 0.25780 2.95067 0.31310 0.25833 2.94592 0.30359 0.25887 2.94104 0.29420 0.25941 2.93604 0.28493 0.25996 2.93092 0.27579 0.26050 2.92568 0.26677 0.26105 2.92033 0.25788 0.26160 2.91487 0.24913 0.26216 2.90931 0.24051 0.26271 2.90364 0.23202 0.26327 2.89786 0.22367 0.26383 2.89199 0.21546 0.26439 2.88603 0.20739 0.26496 2.87998 0.19946 0.26552 2.87384 0.19168 0.26609 2.86761 0.18404 0.26667 2.86131 0.17654 0.26724 2.85492 0.16920 0.26782 2.84847 0.16200 0.26840 2.84194 0.15495 0.26898 2.83534 0.14806 0.26957 2.82869 0.14131 0.27015 2.82197 0.13472 0.27074 2.81519 0.12828 0.27133 2.80837 0.12200 0.27193 2.80149 0.11587 0.27253 2.79456 0.10989 0.27313 2.78760 0.10408 0.27373 2.78059 0.09842 0.27434 2.77355 0.09291 0.27494 2.76647 0.08757 0.27556 2.75937 0.08238 0.27617 2.75224 0.07735 0.27679 2.74509 0.07248 0.27740 2.73792 0.06777 0.27803 2.73073 0.06322 0.27865 2.72354 0.05883 0.27928 2.71633 0.05459 0.27991 2.70913 0.05052 0.28054 2.70192 0.04661 0.28118 2.69471 0.04285 0.28182 2.68752 0.03926 0.28246 2.68033 0.03582 0.28311 2.67316 0.03254 0.28375 2.66601 0.02943 0.28440 2.65888 0.02647 0.28506 2.65178 0.02367 0.28571 2.64471 0.02103 0.28637 2.63767 0.01855 0.28704 2.63067 0.01622 0.28770 2.62372 0.01405 0.28837 2.61682 0.01204 0.28904 2.60997 0.01019 0.28972 2.60318 0.00849 0.29040 2.59646 0.00695 0.29108 2.58981 0.00557 0.29176 2.58323 0.00434 0.29245 2.57674 0.00326 0.29314 2.57034 0.00234 0.29384 2.56404 0.00157 0.29454 2.55786 9.58342E-4 0.29524 2.55180 4.95627E-4 0.29594 2.54588 1.84475E-4 0.29665 2.54013 2.41696E-5 0.29736 2.53460 0 0.29808 2.52931 0 0.29880 2.52420 0 0.29952 2.51922 0 0.30024 2.51438 0 0.30097 2.50966 0 0.30170 2.50504 0 0.30244 2.50053 0 0.30318 2.49611 0 0.30392 2.49178 0 0.30467 2.48753 0 0.30542 2.48336 0 0.30617 2.47927 0 0.30693 2.47525 0 0.30769 2.47130 0 0.30846 2.46742 0 0.30923 2.46361 0 0.31000 2.45985 0 0.31078 2.45616 0 0.31156 2.45252 0 0.31234 2.44894 0 0.31313 2.44541 0 0.31392 2.44193 0 0.31472 2.43851 0 0.31552 2.43513 0 0.31633 2.43180 0 0.31714 2.42852 0 0.31795 2.42528 0 0.31877 2.42208 0 0.31959 2.41893 0 0.32041 2.41582 0 0.32124 2.41275 0 0.32208 2.40972 0 0.32292 2.40673 0 0.32376 2.40378 0 0.32461 2.40086 0 0.32546 2.39798 0 0.32632 2.39513 0 0.32718 2.39232 0 0.32804 2.38954 0 0.32891 2.38679 0 0.32979 2.38407 0 0.33067 2.38139 0 0.33155 2.37874 0 0.33244 2.37611 0 0.33333 2.37352 0 0.33423 2.37096 0 0.33514 2.36842 0 0.33604 2.36591 0 0.33696 2.36343 0 0.33787 2.36097 0 0.33880 2.35855 0 0.33973 2.35614 0 0.34066 2.35376 0 0.34160 2.35141 0 0.34254 2.34908 0 0.34349 2.34678 0 0.34444 2.34450 0 0.34540 2.34224 0 0.34637 2.34000 0 0.34734 2.33779 0 0.34831 2.33560 0 0.34930 2.33343 0 0.35028 2.33128 0 0.35127 2.32915 0 0.35227 2.32705 0 0.35328 2.32496 0 0.35429 2.32289 0 0.35530 2.32085 0 0.35632 2.31882 0 0.35735 2.31681 0 0.35838 2.31482 0 0.35942 2.31285 0 0.36047 2.31090 0 0.36152 2.30896 0 0.36257 2.30704 0 0.36364 2.30514 0 0.36471 2.30326 0 0.36578 2.30140 0 0.36686 2.29955 0 0.36795 2.29771 0 0.36905 2.29590 0 0.37015 2.29410 0 0.37126 2.29231 0 0.37237 2.29054 0 0.37349 2.28879 0 0.37462 2.28705 0 0.37576 2.28533 0 0.37690 2.28362 0 0.37805 2.28192 0 0.37920 2.28024 0 0.38037 2.27858 0 0.38154 2.27693 0 0.38272 2.27529 0 0.38390 2.27366 0 0.38509 2.27205 0 0.38629 2.27046 0 0.38750 2.26887 0 0.38871 2.26730 0 0.38994 2.26574 0 0.39117 2.26420 0 0.39241 2.26267 0 0.39365 2.26115 0 0.39490 2.25964 0 0.39617 2.25814 0 0.39744 2.25666 0 0.39871 2.25519 0 0.40000 2.25373 0 0.40129 2.25228 0 0.40260 2.25084 0 0.40391 2.24942 0 0.40523 2.24800 0 0.40656 2.24660 0 0.40789 2.24521 0 0.40924 2.24382 0 0.41060 2.24245 0 0.41196 2.24109 0 0.41333 2.23974 0 0.41472 2.23841 0 0.41611 2.23708 0 0.41751 2.23576 0 0.41892 2.23445 0 0.42034 2.23315 0 0.42177 2.23186 0 0.42321 2.23059 0 0.42466 2.22932 0 0.42612 2.22806 0 0.42759 2.22681 0 0.42907 2.22557 0 0.43056 2.22434 0 0.43206 2.22311 0 0.43357 2.22190 0 0.43509 2.22070 0 0.43662 2.21950 0 0.43816 2.21832 0 0.43972 2.21714 0 0.44128 2.21597 0 0.44286 2.21481 0 0.44444 2.21366 0 0.44604 2.21252 0 0.44765 2.21138 0 0.44928 2.21026 0 0.45091 2.20914 0 0.45255 2.20803 0 0.45421 2.20693 0 0.45588 2.20584 0 0.45756 2.20475 0 0.45926 2.20367 0 0.46097 2.20260 0 0.46269 2.20154 0 0.46442 2.20049 0 0.46617 2.19944 0 0.46792 2.19840 0 0.46970 2.19737 0 0.47148 2.19635 0 0.47328 2.19533 0 0.47510 2.19432 0 0.47692 2.19332 0 0.47876 2.19232 0 0.48062 2.19134 0 0.48249 2.19035 0 0.48438 2.18938 0 0.48627 2.18841 0 0.48819 2.18745 0 0.49012 2.18650 0 0.49206 2.18555 0 0.49402 2.18462 0 0.49600 2.18368 0 0.49799 2.18276 0 0.50000 2.18184 0 0.50202 2.18092 0 0.50407 2.18002 0 0.50612 2.17912 0 0.50820 2.17822 0 0.51029 2.17733 0 0.51240 2.17645 0 0.51452 2.17558 0 0.51667 2.17471 0 0.51883 2.17385 0 0.52101 2.17299 0 0.52321 2.17214 0 0.52542 2.17130 0 0.52766 2.17046 0 0.52991 2.16962 0 0.53219 2.16880 0 0.53448 2.16798 0 0.53680 2.16716 0 0.53913 2.16635 0 0.54148 2.16555 0 0.54386 2.16475 0 0.54626 2.16396 0 0.54867 2.16317 0 0.55111 2.16239 0 0.55357 2.16161 0 0.55605 2.16084 0 0.55856 2.16008 0 0.56109 2.15932 0 0.56364 2.15857 0 0.56621 2.15782 0 0.56881 2.15707 0 0.57143 2.15634 0 0.57407 2.15560 0 0.57674 2.15488 0 0.57944 2.15415 0 0.58216 2.15344 0 0.58491 2.15272 0 0.58768 2.15202 0 0.59048 2.15132 0 0.59330 2.15062 0 0.59615 2.14993 0 0.59903 2.14924 0 0.60194 2.14856 0 0.60488 2.14788 0 0.60784 2.14721 0 0.61084 2.14654 0 0.61386 2.14588 0 0.61692 2.14522 0 0.62000 2.14457 0 0.62312 2.14392 0 0.62626 2.14327 0 0.62944 2.14263 0 0.63265 2.14200 0 0.63590 2.14137 0 0.63918 2.14074 0 0.64249 2.14012 0 0.64583 2.13951 0 0.64921 2.13890 0 0.65263 2.13829 0 0.65608 2.13769 0 0.65957 2.13709 0 0.66310 2.13649 0 0.66667 2.13590 0 0.67027 2.13532 0 0.67391 2.13474 0 0.67760 2.13416 0 0.68132 2.13359 0 0.68508 2.13302 0 0.68889 2.13246 0 0.69274 2.13190 0 0.69663 2.13134 0 0.70056 2.13079 0 0.70455 2.13024 0 0.70857 2.12970 0 0.71264 2.12916 0 0.71676 2.12863 0 0.72093 2.12810 0 0.72515 2.12757 0 0.72941 2.12705 0 0.73373 2.12653 0 0.73810 2.12601 0 0.74251 2.12550 0 0.74699 2.12499 0 0.75152 2.12449 0 0.75610 2.12399 0 0.76074 2.12350 0 0.76543 2.12301 0 0.77019 2.12252 0 0.77500 2.12204 0 0.77987 2.12156 0 0.78481 2.12108 0 0.78981 2.12061 0 0.79487 2.12014 0 0.80000 2.11968 0 0.80519 2.11922 0 0.81046 2.11876 0 0.81579 2.11830 0 0.82119 2.11786 0 0.82667 2.11741 0 0.83221 2.11697 0 0.83784 2.11653 0 0.84354 2.11609 0 0.84932 2.11566 0 0.85517 2.11523 0 0.86111 2.11481 0 0.86713 2.11439 0 0.87324 2.11397 0 0.87943 2.11356 0 0.88571 2.11315 0 0.89209 2.11274 0 0.89855 2.11234 0 0.90511 2.11194 0 0.91176 2.11154 0 0.91852 2.11115 0 0.92537 2.11076 0 0.93233 2.11037 0 0.93939 2.10999 0 0.94656 2.10961 0 0.95385 2.10924 0 0.96124 2.10886 0 0.96875 2.10850 0 0.97638 2.10813 0 0.98413 2.10777 0 0.99200 2.10741 0 1.00000 2.10705 0 1.00813 2.10670 0 1.01639 2.10635 0 1.02479 2.10601 0 1.03333 2.10566 0 1.04202 2.10532 0 1.05085 2.10499 0 1.05983 2.10465 0 1.06897 2.10432 0 1.07826 2.10400 0 1.08772 2.10368 0 1.09735 2.10336 0 1.10714 2.10304 0 1.11712 2.10272 0 1.12727 2.10241 0 1.13761 2.10211 0 1.14815 2.10180 0 1.15888 2.10150 0 1.16981 2.10120 0 1.18095 2.10091 0 1.19231 2.10062 0 1.20388 2.10033 0 1.21569 2.10004 0 1.22772 2.09976 0 1.24000 2.09948 0