# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
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REFERENCES: |
    T. Inagaki, L. C. Emerson, E. T. Arakawa, M. W. Williams.
    Optical properties of solid Na and Li between 0.6 and 3.8 eV.
    <a href="https://doi.org/10.1103/PhysRevB.13.2305"><i>Phs. Rev. B</i> <b>13</b>, 2305-2313 (1976)</a>
DATA:
  - type: tabulated nk
    data: |
        0.326 0.338 1.40
        0.335 0.329 1.45
        0.344 0.320 1.50
        0.354 0.311 1.55
        0.365 0.301 1.61
        0.376 0.292 1.66
        0.387 0.281 1.72
        0.400 0.273 1.78
        0.413 0.263 1.84
        0.428 0.255 1.90
        0.443 0.244 1.99
        0.459 0.235 2.08
        0.477 0.225 2.19
        0.496 0.214 2.33
        0.517 0.209 2.43
        0.539 0.202 2.58
        0.564 0.199 2.69
        0.590 0.194 2.86
        0.620 0.191 3.04
        0.653 0.190 3.22
        0.689 0.191 3.42
        0.729 0.194 3.62
        0.775 0.197 3.88
        0.827 0.204 4.14
        0.886 0.216 4.43
        0.954 0.229 4.81
        1.033 0.251 5.20
        1.127 0.278 5.70
        1.240 0.319 6.28
        1.378 0.371 6.98
        1.550 0.436 7.87
        1.771 0.530 8.99
        2.066 0.663 10.50