# 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. S. Slavich, G. A. Ermolaev, I. A. Zavidovskiy, D. V. Grudinin, K. V. Kravtsov, M. K. Tatmyshevskiy, M. S. Mironov, A. N. Toksumakov, G. I. Tselikov, I. M. Fradkin, K. V. Voronin, M. R. Povolotskiy, O. G. Matveeva, A. V. Syuy, D. I. Yakubovsky, D. M. Tsymbarenko, I. Kruglov, D. A. Ghazaryan, S. M. Novikov, A. A. Vyshnevyy, A. V. Arsenin, V. S. Volkov, K. S. Novoselov.
    Germanium disulfide as an alternative high refractive index and transparent material for UV-visible nanophotonics.
    <a href="https://doi.org/10.1038/s41377-025-01886-y"><i>Light Sci. Appl.</i>, <b>14</b>, 213 (2025)</a>
    (Numerical data kindly provided by Dr. Georgy Ermolaev)
COMMENTS: |
    n(α),k(α). Ab initio calculations.
CONDITIONS:
    direction: alpha
DATA:
  - type: tabulated nk
    data: | 
        0.29945 2.55637 0.69286
        0.30785 2.58063 0.63580
        0.31676 2.58019 0.59149
        0.32624 2.58244 0.55893
        0.33633 2.58415 0.52129
        0.34711 2.57824 0.50280
        0.35864 2.62256 0.48901
        0.37100 2.65148 0.41537
        0.38431 2.66194 0.35305
        0.39862 2.66394 0.27016
        0.41412 2.63032 0.18188
        0.43091 2.56275 0.12290
        0.44916 2.50293 0.11037
        0.46913 2.47936 0.10678
        0.49099 2.46654 0.07890
        0.51506 2.43378 0.04355
        0.54170 2.39234 0.02608
        0.57130 2.35815 0.01919
        0.60441 2.33059 0.01560
        0.64169 2.30750 0.01317
        0.68395 2.28771 0.01134
        0.73234 2.27048 0.00989
        0.78815 2.25541 0.00867
        0.85329 2.24215 0.00760
        0.93037 2.23046 0.00668
        1.02293 2.22019 0.00586
        1.13605 2.21120 0.00511
        1.27756 2.20337 0.00443
        1.45951 2.19664 0.00378
        1.70213 2.19089 0.00317
        2.04216 2.18614 0.00261