# 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: |
    G. Ermolaev, A. P. Pushkarev, A. Zhizhchenko, A. A. Kuchmizhak, I. Iorsh, I. Kruglov, A. Mazitov, A. Ishteev, K. Konstantinova, D. Saranin, A. Slavich, D. Stosic, E. S. Zhukova, G. Tselikov, A. D. Carlo, A. Arsenin, K. S. Novoselov, S. V. Makarov, V. S. Volkov.
    Giant and tunable excitonic optical anisotropy in single-crystal halide perovskites.
    <a href="https://doi.org/10.1021/acs.nanolett.2c04792"><i>Nano Lett.</i> <b>23</b>, 2570–2577 (2023)</a>
    (Numerical data kindly provided by Georgy Ermolaev)
COMMENTS: |
    CsPbBr<sub>3</sub> monocrystal. Extraordinary ray (e).
CONDITIONS:
    direction: e
DATA:
  - type: tabulated nk
    data: |
        0.500 2.11250 0
        0.501 2.11162 0
        0.502 2.11074 0
        0.503 2.10986 0
        0.504 2.10899 0
        0.505 2.10813 0
        0.506 2.10727 0
        0.507 2.10642 0
        0.508 2.10557 0
        0.509 2.10472 0
        0.510 2.10389 0
        0.511 2.10305 0
        0.512 2.10222 0
        0.513 2.10140 0
        0.514 2.10058 0
        0.515 2.09976 0
        0.516 2.09895 0
        0.517 2.09815 0
        0.518 2.09735 0
        0.519 2.09655 0
        0.520 2.09576 0
        0.521 2.09497 0
        0.522 2.09419 0
        0.523 2.09341 0
        0.524 2.09264 0
        0.525 2.09187 0
        0.526 2.09111 0
        0.527 2.09035 0
        0.528 2.08959 0
        0.529 2.08884 0
        0.530 2.08809 0
        0.531 2.08735 0
        0.532 2.08661 0
        0.533 2.08587 0
        0.534 2.08514 0
        0.535 2.08442 0
        0.536 2.08369 0
        0.537 2.08297 0
        0.538 2.08226 0
        0.539 2.08155 0
        0.540 2.08084 0
        0.541 2.08014 0
        0.542 2.07944 0
        0.543 2.07875 0
        0.544 2.07806 0
        0.545 2.07737 0
        0.546 2.07668 0
        0.547 2.07600 0
        0.548 2.07533 0
        0.549 2.07466 0
        0.550 2.07399 0
        0.551 2.07332 0
        0.552 2.07266 0
        0.553 2.07200 0
        0.554 2.07135 0
        0.555 2.07070 0
        0.556 2.07005 0
        0.557 2.06941 0
        0.558 2.06877 0
        0.559 2.06813 0
        0.560 2.06750 0
        0.561 2.06687 0
        0.562 2.06624 0
        0.563 2.06562 0
        0.564 2.06500 0
        0.565 2.06438 0
        0.566 2.06376 0
        0.567 2.06315 0
        0.568 2.06255 0
        0.569 2.06194 0
        0.570 2.06134 0
        0.571 2.06074 0
        0.572 2.06015 0
        0.573 2.05956 0
        0.574 2.05897 0
        0.575 2.05838 0
        0.576 2.05780 0
        0.577 2.05722 0
        0.578 2.05665 0
        0.579 2.05607 0
        0.580 2.05551 0
        0.581 2.05494 0
        0.582 2.05437 0
        0.583 2.05381 0
        0.584 2.05325 0
        0.585 2.05270 0
        0.586 2.05214 0
        0.587 2.05159 0
        0.588 2.05105 0
        0.589 2.05050 0
        0.590 2.04996 0
        0.591 2.04942 0
        0.592 2.04889 0
        0.593 2.04835 0
        0.594 2.04782 0
        0.595 2.04729 0
        0.596 2.04677 0
        0.597 2.04625 0
        0.598 2.04573 0
        0.599 2.04521 0
        0.600 2.04469 0
        0.601 2.04418 0
        0.602 2.04367 0
        0.603 2.04316 0
        0.604 2.04266 0
        0.605 2.04216 0
        0.606 2.04166 0
        0.607 2.04116 0
        0.608 2.04066 0
        0.609 2.04017 0
        0.610 2.03968 0
        0.611 2.03919 0
        0.612 2.03871 0
        0.613 2.03823 0
        0.614 2.03775 0
        0.615 2.03727 0
        0.616 2.03679 0
        0.617 2.03632 0
        0.618 2.03585 0
        0.619 2.03538 0
        0.620 2.03491 0
        0.621 2.03445 0
        0.622 2.03398 0
        0.623 2.03352 0
        0.624 2.03307 0
        0.625 2.03261 0
        0.626 2.03216 0
        0.627 2.03171 0
        0.628 2.03126 0
        0.629 2.03081 0
        0.630 2.03037 0
        0.631 2.02992 0
        0.632 2.02948 0
        0.633 2.02904 0
        0.634 2.02861 0
        0.635 2.02817 0
        0.636 2.02774 0
        0.637 2.02731 0
        0.638 2.02688 0
        0.639 2.02645 0
        0.640 2.02603 0
        0.641 2.02561 0
        0.642 2.02519 0
        0.643 2.02477 0
        0.644 2.02435 0
        0.645 2.02394 0
        0.646 2.02353 0
        0.647 2.02312 0
        0.648 2.02271 0
        0.649 2.02230 0
        0.650 2.02190 0
        0.651 2.02149 0
        0.652 2.02109 0
        0.653 2.02069 0
        0.654 2.02029 0
        0.655 2.01990 0
        0.656 2.01950 0
        0.657 2.01911 0
        0.658 2.01872 0
        0.659 2.01833 0
        0.660 2.01795 0
        0.661 2.01756 0
        0.662 2.01718 0
        0.663 2.01680 0
        0.664 2.01642 0
        0.665 2.01604 0
        0.666 2.01566 0
        0.667 2.01529 0
        0.668 2.01491 0
        0.669 2.01454 0
        0.670 2.01417 0
        0.671 2.01380 0
        0.672 2.01344 0
        0.673 2.01307 0
        0.674 2.01271 0
        0.675 2.01235 0
        0.676 2.01199 0
        0.677 2.01163 0
        0.678 2.01127 0
        0.679 2.01092 0
        0.680 2.01056 0
        0.681 2.01021 0
        0.682 2.00986 0
        0.683 2.00951 0
        0.684 2.00916 0
        0.685 2.00882 0
        0.686 2.00847 0
        0.687 2.00813 0
        0.688 2.00779 0
        0.689 2.00745 0
        0.690 2.00711 0
        0.691 2.00677 0
        0.692 2.00644 0
        0.693 2.00610 0
        0.694 2.00577 0
        0.695 2.00544 0
        0.696 2.00511 0
        0.697 2.00478 0
        0.698 2.00446 0
        0.699 2.00413 0
        0.700 2.00381 0
        0.701 2.00348 0
        0.702 2.00316 0
        0.703 2.00284 0
        0.704 2.00252 0
        0.705 2.00221 0
        0.706 2.00189 0
        0.707 2.00157 0
        0.708 2.00126 0
        0.709 2.00095 0
        0.710 2.00064 0
        0.711 2.00033 0
        0.712 2.00002 0
        0.713 1.99971 0
        0.714 1.99941 0
        0.715 1.99910 0
        0.716 1.99880 0
        0.717 1.99850 0
        0.718 1.99820 0
        0.719 1.99790 0
        0.720 1.99760 0
        0.721 1.99731 0
        0.722 1.99701 0
        0.723 1.99672 0
        0.724 1.99642 0
        0.725 1.99613 0
        0.726 1.99584 0
        0.727 1.99555 0
        0.728 1.99526 0
        0.729 1.99498 0
        0.730 1.99469 0
        0.731 1.99441 0
        0.732 1.99412 0
        0.733 1.99384 0
        0.734 1.99356 0
        0.735 1.99328 0
        0.736 1.99300 0
        0.737 1.99272 0
        0.738 1.99245 0
        0.739 1.99217 0
        0.740 1.99190 0
        0.741 1.99162 0
        0.742 1.99135 0
        0.743 1.99108 0
        0.744 1.99081 0
        0.745 1.99054 0
        0.746 1.99027 0
        0.747 1.99001 0
        0.748 1.98974 0
        0.749 1.98948 0
        0.750 1.98921 0
        0.751 1.98895 0
        0.752 1.98869 0
        0.753 1.98843 0
        0.754 1.98817 0
        0.755 1.98791 0
        0.756 1.98765 0
        0.757 1.98740 0
        0.758 1.98714 0
        0.759 1.98689 0
        0.760 1.98663 0
        0.761 1.98638 0
        0.762 1.98613 0
        0.763 1.98588 0
        0.764 1.98563 0
        0.765 1.98538 0
        0.766 1.98514 0
        0.767 1.98489 0
        0.768 1.98464 0
        0.769 1.98440 0
        0.770 1.98415 0
        0.771 1.98391 0
        0.772 1.98367 0
        0.773 1.98343 0
        0.774 1.98319 0
        0.775 1.98295 0
        0.776 1.98271 0
        0.777 1.98248 0
        0.778 1.98224 0
        0.779 1.98201 0
        0.780 1.98177 0
        0.781 1.98154 0
        0.782 1.98131 0
        0.783 1.98107 0
        0.784 1.98084 0
        0.785 1.98061 0
        0.786 1.98038 0
        0.787 1.98016 0
        0.788 1.97993 0
        0.789 1.97970 0
        0.790 1.97948 0
        0.791 1.97925 0
        0.792 1.97903 0
        0.793 1.97881 0
        0.794 1.97858 0
        0.795 1.97836 0
        0.796 1.97814 0
        0.797 1.97792 0
        0.798 1.97770 0
        0.799 1.97749 0
        0.800 1.97727 0
        0.801 1.97705 0
        0.802 1.97684 0
        0.803 1.97662 0
        0.804 1.97641 0
        0.805 1.97619 0
        0.806 1.97598 0
        0.807 1.97577 0
        0.808 1.97556 0
        0.809 1.97535 0
        0.810 1.97514 0
        0.811 1.97493 0
        0.812 1.97473 0
        0.813 1.97452 0
        0.814 1.97431 0
        0.815 1.97411 0
        0.816 1.97390 0
        0.817 1.97370 0
        0.818 1.97350 0
        0.819 1.97329 0
        0.820 1.97309 0
        0.821 1.97289 0
        0.822 1.97269 0
        0.823 1.97249 0
        0.824 1.97229 0
        0.825 1.97209 0
        0.826 1.97190 0
        0.827 1.97170 0
        0.828 1.97151 0
        0.829 1.97131 0
        0.830 1.97112 0
        0.831 1.97092 0
        0.832 1.97073 0
        0.833 1.97054 0
        0.834 1.97035 0
        0.835 1.97015 0
        0.836 1.96996 0
        0.837 1.96977 0
        0.838 1.96958 0
        0.839 1.96940 0
        0.840 1.96921 0
        0.841 1.96902 0
        0.842 1.96884 0
        0.843 1.96865 0
        0.844 1.96847 0
        0.845 1.96828 0
        0.846 1.96810 0
        0.847 1.96792 0
        0.848 1.96773 0
        0.849 1.96755 0
        0.850 1.96737 0
        0.851 1.96719 0
        0.852 1.96701 0
        0.853 1.96683 0
        0.854 1.96665 0
        0.855 1.96648 0
        0.856 1.96630 0
        0.857 1.96612 0
        0.858 1.96595 0
        0.859 1.96577 0
        0.860 1.96560 0
        0.861 1.96542 0
        0.862 1.96525 0
        0.863 1.96507 0
        0.864 1.96490 0
        0.865 1.96473 0
        0.866 1.96456 0
        0.867 1.96439 0
        0.868 1.96422 0
        0.869 1.96405 0
        0.870 1.96388 0
        0.871 1.96371 0
        0.872 1.96354 0
        0.873 1.96338 0
        0.874 1.96321 0
        0.875 1.96304 0
        0.876 1.96288 0
        0.877 1.96272 0
        0.878 1.96255 0
        0.879 1.96239 0
        0.880 1.96222 0
        0.881 1.96206 0
        0.882 1.96190 0
        0.883 1.96174 0
        0.884 1.96158 0
        0.885 1.96142 0
        0.886 1.96126 0
        0.887 1.96110 0
        0.888 1.96094 0
        0.889 1.96078 0
        0.890 1.96062 0
        0.891 1.96047 0
        0.892 1.96031 0
        0.893 1.96015 0
        0.894 1.96000 0
        0.895 1.95984 0
        0.896 1.95969 0
        0.897 1.95953 0
        0.898 1.95938 0
        0.899 1.95923 0
        0.900 1.95907 0
        0.901 1.95892 0
        0.902 1.95877 0
        0.903 1.95862 0
        0.904 1.95847 0
        0.905 1.95832 0
        0.906 1.95817 0
        0.907 1.95802 0
        0.908 1.95787 0
        0.909 1.95772 0
        0.910 1.95758 0
        0.911 1.95743 0
        0.912 1.95728 0
        0.913 1.95714 0
        0.914 1.95699 0
        0.915 1.95685 0
        0.916 1.95670 0
        0.917 1.95656 0
        0.918 1.95642 0
        0.919 1.95627 0
        0.920 1.95613 0
        0.921 1.95599 0
        0.922 1.95585 0
        0.923 1.95570 0
        0.924 1.95556 0
        0.925 1.95542 0
        0.926 1.95528 0
        0.927 1.95514 0
        0.928 1.95500 0
        0.929 1.95487 0
        0.930 1.95473 0
        0.931 1.95459 0
        0.932 1.95445 0
        0.933 1.95432 0
        0.934 1.95418 0
        0.935 1.95404 0
        0.936 1.95391 0
        0.937 1.95377 0
        0.938 1.95364 0
        0.939 1.95350 0
        0.940 1.95337 0
        0.941 1.95324 0
        0.942 1.95310 0
        0.943 1.95297 0
        0.944 1.95284 0
        0.945 1.95271 0
        0.946 1.95258 0
        0.947 1.95245 0
        0.948 1.95231 0
        0.949 1.95218 0