# 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: |
    T. Klinavičius, A. Tamulevičienė, T. Tamulevičius.
    How to select the proper gold permittivity for generating training data for deep neural networks for analysis of the nanoparticle colloid size distributions from their UV–Vis–NIR extinction spectra?
    <a href="https://doi.org/10.1021/acs.jpcc.5c03973"><i>J. Phys. Chem. C</i> <b>129</b>, 17616-17631 (2025)</a>
    (See Supporting information)
COMMENTS: |
    30.4 nm average radius chemically synthesized spherical gold nanoparticles. Colloid solution in water.
DATA:
  - type: tabulated nk
    data: |
        0.400 1.8725405 2.1296842
        0.401 1.8749657 2.1294938
        0.402 1.8772074 2.1291918
        0.403 1.8792644 2.1287790
        0.404 1.8811352 2.1282565
        0.405 1.8828186 2.1276257
        0.406 1.8843134 2.1268877
        0.407 1.8856182 2.1260438
        0.408 1.8867319 2.1250955
        0.409 1.8876533 2.1240442
        0.410 1.8883811 2.1228915
        0.411 1.8889143 2.1216390
        0.412 1.8892517 2.1202884
        0.413 1.8893922 2.1188415
        0.414 1.8893348 2.1173002
        0.415 1.8890785 2.1156663
        0.416 1.8886222 2.1139420
        0.417 1.8879649 2.1121293
        0.418 1.8871057 2.1102305
        0.419 1.8860437 2.1082476
        0.420 1.8847779 2.1061832
        0.421 1.8833075 2.1040395
        0.422 1.8816316 2.1018191
        0.423 1.8797493 2.0995247
        0.424 1.8776600 2.0971588
        0.425 1.8753628 2.0947242
        0.426 1.8728569 2.0922237
        0.427 1.8701417 2.0896602
        0.428 1.8672165 2.0870368
        0.429 1.8640806 2.0843565
        0.430 1.8607334 2.0816225
        0.431 1.8571743 2.0788380
        0.432 1.8534027 2.0760064
        0.433 1.8494181 2.0731311
        0.434 1.8452200 2.0702157
        0.435 1.8408079 2.0672636
        0.436 1.8361814 2.0642786
        0.437 1.8313401 2.0612646
        0.438 1.8262836 2.0582252
        0.439 1.8210116 2.0551646
        0.440 1.8155238 2.0520867
        0.441 1.8098200 2.0489957
        0.442 1.8039000 2.0458958
        0.443 1.7977636 2.0427914
        0.444 1.7914107 2.0396867
        0.445 1.7848413 2.0365864
        0.446 1.7780553 2.0334951
        0.447 1.7710527 2.0304173
        0.448 1.7638338 2.0273579
        0.449 1.7563986 2.0243218
        0.450 1.7487473 2.0213139
        0.451 1.7408803 2.0183393
        0.452 1.7327979 2.0154031
        0.453 1.7245005 2.0125106
        0.454 1.7159886 2.0096671
        0.455 1.7072629 2.0068780
        0.456 1.6983240 2.0041488
        0.457 1.6891725 2.0014852
        0.458 1.6798095 1.9988929
        0.459 1.6702359 1.9963776
        0.460 1.6604527 1.9939452
        0.461 1.6504610 1.9916016
        0.462 1.6402623 1.9893530
        0.463 1.6298579 1.9872053
        0.464 1.6192493 1.9851649
        0.465 1.6084382 1.9832379
        0.466 1.5974265 1.9814308
        0.467 1.5862161 1.9797498
        0.468 1.5748092 1.9782016
        0.469 1.5632081 1.9767926
        0.470 1.5514153 1.9755294
        0.471 1.5394334 1.9744186
        0.472 1.5272653 1.9734668
        0.473 1.5149141 1.9726808
        0.474 1.5023830 1.9720673
        0.475 1.4896755 1.9716330
        0.476 1.4767953 1.9713845
        0.477 1.4637463 1.9713287
        0.478 1.4505328 1.9714721
        0.479 1.4371591 1.9718215
        0.480 1.4236299 1.9723835
        0.481 1.4099502 1.9731645
        0.482 1.3961251 1.9741711
        0.483 1.3821602 1.9754096
        0.484 1.3680611 1.9768862
        0.485 1.3538340 1.9786071
        0.486 1.3394850 1.9805782
        0.487 1.3250207 1.9828054
        0.488 1.3104481 1.9852941
        0.489 1.2957743 1.9880499
        0.490 1.2810065 1.9910778
        0.491 1.2661526 1.9943827
        0.492 1.2512203 1.9979693
        0.493 1.2362180 2.0018418
        0.494 1.2211539 2.0060043
        0.495 1.2060367 2.0104604
        0.496 1.1908752 2.0152132
        0.497 1.1756785 2.0202658
        0.498 1.1604556 2.0256207
        0.499 1.1452160 2.0312797
        0.500 1.1299691 2.0372447
        0.501 1.1147245 2.0435167
        0.502 1.0994917 2.0500964
        0.503 1.0842804 2.0569841
        0.504 1.0691003 2.0641796
        0.505 1.0539611 2.0716820
        0.506 1.0388724 2.0794901
        0.507 1.0238437 2.0876022
        0.508 1.0088844 2.0960162
        0.509 0.9940039 2.1047293
        0.510 0.9792111 2.1137383
        0.511 0.9645152 2.1230398
        0.512 0.9499247 2.1326294
        0.513 0.9354480 2.1425029
        0.514 0.9210933 2.1526553
        0.515 0.9068685 2.1630814
        0.516 0.8927810 2.1737753
        0.517 0.8788380 2.1847313
        0.518 0.8650464 2.1959430
        0.519 0.8514125 2.2074037
        0.520 0.8379424 2.2191067
        0.521 0.8246416 2.2310448
        0.522 0.8115156 2.2432109
        0.523 0.7985689 2.2555973
        0.524 0.7858062 2.2681967
        0.525 0.7732312 2.2810011
        0.526 0.7608477 2.2940030
        0.527 0.7486589 2.3071943
        0.528 0.7366674 2.3205672
        0.529 0.7248757 2.3341138
        0.530 0.7132858 2.3478262
        0.531 0.7018993 2.3616965
        0.532 0.6907176 2.3757170
        0.533 0.6797416 2.3898799
        0.534 0.6689719 2.4041776
        0.535 0.6584088 2.4186025
        0.536 0.6480523 2.4331471
        0.537 0.6379022 2.4478043
        0.538 0.6279579 2.4625668
        0.539 0.6182185 2.4774276
        0.540 0.6086832 2.4923800
        0.541 0.5993507 2.5074172
        0.542 0.5902194 2.5225326
        0.543 0.5812878 2.5377201
        0.544 0.5725541 2.5529734
        0.545 0.5640163 2.5682865
        0.546 0.5556723 2.5836537
        0.547 0.5475199 2.5990693
        0.548 0.5395566 2.6145280
        0.549 0.5317801 2.6300245
        0.550 0.5241878 2.6455537
        0.551 0.5167770 2.6611108
        0.552 0.5095450 2.6766911
        0.553 0.5024891 2.6922900
        0.554 0.4956063 2.7079032
        0.555 0.4888939 2.7235266
        0.556 0.4823489 2.7391560
        0.557 0.4759684 2.7547878
        0.558 0.4697493 2.7704181
        0.559 0.4636888 2.7860434
        0.560 0.4577837 2.8016604
        0.561 0.4520312 2.8172659
        0.562 0.4464281 2.8328567
        0.563 0.4409716 2.8484298
        0.564 0.4356585 2.8639826
        0.565 0.4304860 2.8795122
        0.566 0.4254511 2.8950161
        0.567 0.4205509 2.9104920
        0.568 0.4157824 2.9259373
        0.569 0.4111427 2.9413501
        0.570 0.4066291 2.9567281
        0.571 0.4022386 2.9720694
        0.572 0.3979685 2.9873722
        0.573 0.3938160 3.0026345
        0.574 0.3897784 3.0178548
        0.575 0.3858530 3.0330315
        0.576 0.3820372 3.0481631
        0.577 0.3783284 3.0632481
        0.578 0.3747239 3.0782853
        0.579 0.3712213 3.0932733
        0.580 0.3678181 3.1082111
        0.581 0.3645119 3.1230975
        0.582 0.3613002 3.1379316
        0.583 0.3581807 3.1527123
        0.584 0.3551510 3.1674389
        0.585 0.3522090 3.1821104
        0.586 0.3493524 3.1967262
        0.587 0.3465789 3.2112856
        0.588 0.3438866 3.2257879
        0.589 0.3412732 3.2402326
        0.590 0.3387367 3.2546191
        0.591 0.3362751 3.2689470
        0.592 0.3338865 3.2832159
        0.593 0.3315689 3.2974254
        0.594 0.3293204 3.3115752
        0.595 0.3271392 3.3256650
        0.596 0.3250235 3.3396947
        0.597 0.3229715 3.3536640
        0.598 0.3209815 3.3675727
        0.599 0.3190518 3.3814208
        0.600 0.3171808 3.3952083
        0.601 0.3153668 3.4089350
        0.602 0.3136084 3.4226010
        0.603 0.3119039 3.4362063
        0.604 0.3102518 3.4497510
        0.605 0.3086507 3.4632353
        0.606 0.3070992 3.4766591
        0.607 0.3055959 3.4900228
        0.608 0.3041395 3.5033264
        0.609 0.3027285 3.5165703
        0.610 0.3013617 3.5297546
        0.611 0.3000379 3.5428796
        0.612 0.2987558 3.5559456
        0.613 0.2975143 3.5689529
        0.614 0.2963121 3.5819019
        0.615 0.2951482 3.5947928
        0.616 0.2940213 3.6076262
        0.617 0.2929306 3.6204023
        0.618 0.2918748 3.6331215
        0.619 0.2908530 3.6457844
        0.620 0.2898642 3.6583913
        0.621 0.2889074 3.6709427
        0.622 0.2879816 3.6834391
        0.623 0.2870861 3.6958810
        0.624 0.2862197 3.7082688
        0.625 0.2853818 3.7206031
        0.626 0.2845715 3.7328845
        0.627 0.2837878 3.7451133
        0.628 0.2830301 3.7572903
        0.629 0.2822976 3.7694159
        0.630 0.2815894 3.7814907
        0.631 0.2809049 3.7935152
        0.632 0.2802434 3.8054902
        0.633 0.2796041 3.8174161
        0.634 0.2789864 3.8292935
        0.635 0.2783897 3.8411231
        0.636 0.2778132 3.8529055
        0.637 0.2772564 3.8646412
        0.638 0.2767187 3.8763310
        0.639 0.2761994 3.8879753
        0.640 0.2756981 3.8995749
        0.641 0.2752142 3.9111303
        0.642 0.2747472 3.9226422
        0.643 0.2742964 3.9341113
        0.644 0.2738615 3.9455381
        0.645 0.2734419 3.9569233
        0.646 0.2730372 3.9682675
        0.647 0.2726469 3.9795714
        0.648 0.2722706 3.9908357
        0.649 0.2719078 4.0020608
        0.650 0.2715581 4.0132476
        0.651 0.2712211 4.0243966
        0.652 0.2708965 4.0355084
        0.653 0.2705838 4.0465837
        0.654 0.2702826 4.0576232
        0.655 0.2699927 4.0686273
        0.656 0.2697136 4.0795969
        0.657 0.2694451 4.0905324
        0.658 0.2691867 4.1014346
        0.659 0.2689383 4.1123040
        0.660 0.2686994 4.1231412
        0.661 0.2684698 4.1339469
        0.662 0.2682492 4.1447217
        0.663 0.2680373 4.1554661
        0.664 0.2678339 4.1661807
        0.665 0.2676387 4.1768662
        0.666 0.2674514 4.1875231
        0.667 0.2672718 4.1981521
        0.668 0.2670997 4.2087536
        0.669 0.2669348 4.2193282
        0.670 0.2667769 4.2298766
        0.671 0.2666258 4.2403993
        0.672 0.2664814 4.2508967
        0.673 0.2663433 4.2613696
        0.674 0.2662114 4.2718183
        0.675 0.2660856 4.2822435
        0.676 0.2659655 4.2926457
        0.677 0.2658512 4.3030253
        0.678 0.2657423 4.3133829
        0.679 0.2656388 4.3237190
        0.680 0.2655404 4.3340342
        0.681 0.2654471 4.3443288
        0.682 0.2653586 4.3546033
        0.683 0.2652749 4.3648584
        0.684 0.2651958 4.3750943
        0.685 0.2651211 4.3853116
        0.686 0.2650508 4.3955107
        0.687 0.2649846 4.4056921
        0.688 0.2649226 4.4158563
        0.689 0.2648645 4.4260035
        0.690 0.2648104 4.4361344
        0.691 0.2647599 4.4462492
        0.692 0.2647132 4.4563484
        0.693 0.2646699 4.4664325
        0.694 0.2646302 4.4765017
        0.695 0.2645938 4.4865564
        0.696 0.2645607 4.4965972
        0.697 0.2645307 4.5066242
        0.698 0.2645039 4.5166379
        0.699 0.2644801 4.5266387
        0.700 0.2644593 4.5366269
        0.701 0.2644413 4.5466028
        0.702 0.2644261 4.5565667
        0.703 0.2644137 4.5665190
        0.704 0.2644039 4.5764601
        0.705 0.2643967 4.5863901
        0.706 0.2643921 4.5963095
        0.707 0.2643899 4.6062185
        0.708 0.2643902 4.6161173
        0.709 0.2643928 4.6260064
        0.710 0.2643977 4.6358859
        0.711 0.2644049 4.6457562
        0.712 0.2644143 4.6556174
        0.713 0.2644258 4.6654698
        0.714 0.2644395 4.6753138
        0.715 0.2644552 4.6851494
        0.716 0.2644730 4.6949771
        0.717 0.2644927 4.7047969
        0.718 0.2645144 4.7146091
        0.719 0.2645380 4.7244139
        0.720 0.2645634 4.7342115
        0.721 0.2645907 4.7440022
        0.722 0.2646198 4.7537861
        0.723 0.2646507 4.7635634
        0.724 0.2646833 4.7733343
        0.725 0.2647176 4.7830989
        0.726 0.2647536 4.7928575
        0.727 0.2647912 4.8026101
        0.728 0.2648304 4.8123571
        0.729 0.2648713 4.8220984
        0.730 0.2649137 4.8318343
        0.731 0.2649576 4.8415649
        0.732 0.2650031 4.8512903
        0.733 0.2650501 4.8610107
        0.734 0.2650986 4.8707261
        0.735 0.2651485 4.8804368
        0.736 0.2651999 4.8901428
        0.737 0.2652526 4.8998443
        0.738 0.2653068 4.9095413
        0.739 0.2653624 4.9192340
        0.740 0.2654193 4.9289223
        0.741 0.2654776 4.9386066
        0.742 0.2655373 4.9482867
        0.743 0.2655982 4.9579628
        0.744 0.2656605 4.9676351
        0.745 0.2657241 4.9773035
        0.746 0.2657889 4.9869681
        0.747 0.2658550 4.9966290
        0.748 0.2659224 5.0062863
        0.749 0.2659910 5.0159399
        0.750 0.2660609 5.0255901
        0.751 0.2661320 5.0352368
        0.752 0.2662043 5.0448800
        0.753 0.2662778 5.0545198
        0.754 0.2663525 5.0641563
        0.755 0.2664284 5.0737895
        0.756 0.2665055 5.0834194
        0.757 0.2665838 5.0930461
        0.758 0.2666632 5.1026695
        0.759 0.2667438 5.1122897
        0.760 0.2668255 5.1219067
        0.761 0.2669084 5.1315206
        0.762 0.2669924 5.1411314
        0.763 0.2670776 5.1507390
        0.764 0.2671639 5.1603434
        0.765 0.2672513 5.1699448
        0.766 0.2673398 5.1795430
        0.767 0.2674295 5.1891382
        0.768 0.2675202 5.1987302
        0.769 0.2676120 5.2083190
        0.770 0.2677050 5.2179048
        0.771 0.2677990 5.2274874
        0.772 0.2678942 5.2370669
        0.773 0.2679904 5.2466432
        0.774 0.2680877 5.2562164
        0.775 0.2681861 5.2657863
        0.776 0.2682856 5.2753531
        0.777 0.2683861 5.2849166
        0.778 0.2684878 5.2944769
        0.779 0.2685904 5.3040339
        0.780 0.2686942 5.3135876
        0.781 0.2687990 5.3231379
        0.782 0.2689049 5.3326849
        0.783 0.2690119 5.3422285
        0.784 0.2691199 5.3517687
        0.785 0.2692290 5.3613054
        0.786 0.2693392 5.3708386
        0.787 0.2694504 5.3803683
        0.788 0.2695626 5.3898944
        0.789 0.2696759 5.3994169
        0.790 0.2697903 5.4089357
        0.791 0.2699057 5.4184509
        0.792 0.2700222 5.4279623
        0.793 0.2701397 5.4374698
        0.794 0.2702583 5.4469736
        0.795 0.2703779 5.4564735
        0.796 0.2704986 5.4659694
        0.797 0.2706203 5.4754614
        0.798 0.2707431 5.4849493
        0.799 0.2708670 5.4944331
        0.800 0.2709919 5.5039128
        0.801 0.2711178 5.5133883
        0.802 0.2712448 5.5228596
        0.803 0.2713728 5.5323265
        0.804 0.2715019 5.5417891
        0.805 0.2716321 5.5512473
        0.806 0.2717632 5.5607009
        0.807 0.2718955 5.5701501
        0.808 0.2720288 5.5795946
        0.809 0.2721631 5.5890345
        0.810 0.2722985 5.5984696
        0.811 0.2724350 5.6079000
        0.812 0.2725725 5.6173255
        0.813 0.2727111 5.6267462
        0.814 0.2728507 5.6361618
        0.815 0.2729914 5.6455724
        0.816 0.2731332 5.6549779
        0.817 0.2732760 5.6643782
        0.818 0.2734198 5.6737733
        0.819 0.2735648 5.6831631
        0.820 0.2737108 5.6925476
        0.821 0.2738578 5.7019265
        0.822 0.2740059 5.7113000
        0.823 0.2741551 5.7206679
        0.824 0.2743054 5.7300302
        0.825 0.2744567 5.7393867
        0.826 0.2746091 5.7487375
        0.827 0.2747625 5.7580824
        0.828 0.2749171 5.7674214
        0.829 0.2750727 5.7767544
        0.830 0.2752294 5.7860813
        0.831 0.2753871 5.7954021
        0.832 0.2755459 5.8047166
        0.833 0.2757059 5.8140249
        0.834 0.2758669 5.8233268
        0.835 0.2760289 5.8326223
        0.836 0.2761921 5.8419113
        0.837 0.2763563 5.8511937
        0.838 0.2765217 5.8604695
        0.839 0.2766881 5.8697385
        0.840 0.2768556 5.8790007
        0.841 0.2770242 5.8882561
        0.842 0.2771939 5.8975045
        0.843 0.2773647 5.9067459
        0.844 0.2775366 5.9159802
        0.845 0.2777096 5.9252073
        0.846 0.2778837 5.9344271
        0.847 0.2780589 5.9436397
        0.848 0.2782352 5.9528448
        0.849 0.2784126 5.9620425
        0.850 0.2785911 5.9712325
        0.851 0.2787707 5.9804150
        0.852 0.2789515 5.9895898
        0.853 0.2791333 5.9987567
        0.854 0.2793163 6.0079158
        0.855 0.2795004 6.0170670
        0.856 0.2796856 6.0262101
        0.857 0.2798719 6.0353452
        0.858 0.2800593 6.0444721
        0.859 0.2802479 6.0535907
        0.860 0.2804376 6.0627010
        0.861 0.2806284 6.0718029
        0.862 0.2808204 6.0808963
        0.863 0.2810135 6.0899812
        0.864 0.2812077 6.0990574
        0.865 0.2814031 6.1081249
        0.866 0.2815996 6.1171836
        0.867 0.2817972 6.1262334
        0.868 0.2819960 6.1352743
        0.869 0.2821960 6.1443061
        0.870 0.2823971 6.1533289
        0.871 0.2825993 6.1623424
        0.872 0.2828027 6.1713467
        0.873 0.2830073 6.1803416
        0.874 0.2832130 6.1893271
        0.875 0.2834198 6.1983032
        0.876 0.2836279 6.2072696
        0.877 0.2838371 6.2162264
        0.878 0.2840474 6.2251734
        0.879 0.2842590 6.2341106
        0.880 0.2844717 6.2430379
        0.881 0.2846856 6.2519553
        0.882 0.2849006 6.2608625
        0.883 0.2851169 6.2697597
        0.884 0.2853343 6.2786466
        0.885 0.2855529 6.2875233
        0.886 0.2857727 6.2963895
        0.887 0.2859937 6.3052454
        0.888 0.2862158 6.3140907
        0.889 0.2864392 6.3229253
        0.890 0.2866637 6.3317493
        0.891 0.2868895 6.3405626
        0.892 0.2871165 6.3493649
        0.893 0.2873446 6.3581564
        0.894 0.2875740 6.3669368
        0.895 0.2878046 6.3757062
        0.896 0.2880364 6.3844644
        0.897 0.2882694 6.3932113
        0.898 0.2885036 6.4019470
        0.899 0.2887391 6.4106712
        0.900 0.2889757 6.4193840