# 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: |
    Crystran Ltd.
    <a href="https://issuu.com/crystran/docs/handbook_2023_website">
    The Crystran handbook of infra-red and ultra-violet optical materials (5th edition, 2023)
    </a><br>
    See also
    <a href="https://www.crystran.com/optical-materials/gallium-arsenide-gaas">
    Crystran GaAs online data sheet
    </a>
COMMENTS: |
    Gallium Arsenide has specialist applications in far IR optics and lens systems.<br>
    Gallium Arsenide is produced by Czochralski or horizontal Bridgeman crystal growth techniques.<br>
    As it is arsenic bearing, precautions in handling and working should be observed.<br>
    REFERENCES:<br>
    (1) Handbook Optical Constants, ed Palik, V1, ISBN 0-12-544420-6<br>
    (2) Deutch, J.Electron. Mater. V4 p679<br>
    (3) Sze, Physics of Semiconductor Devices, Wiley 1981<br>
    (4) M.Cadona. Proc. Int Conf. Semi. Phys. 1960 p.388. Note: dn/dT = n x (4.5 +/-0.2)x10<sup>-5</sup> °K<sup>-1</sup>
PROPERTIES:
    density:
      - value: 5315
    thermal_dispersion:
      - type: constant
        wavelength: 10
        value: 147e-06
    thermal_expansion:
      - temperature: 300
        value: 5.7e-06
    hardness:
      - type: Knoop
        value: 7.35e9
    melting_point:
      - value: 1784
    thermal_conductivity:
      - temperature: 273
        value: 48
    youngs_modulus:
      - value: 84.81e9
    poissons_ratio:
      - value: 0.31
    solubility:
      - value: 0
DATA:
  - type: tabulated n
    data: |
        1.033 3.4920
        1.550 3.3737
        2.066 3.3380
        2.480 3.3240
        3.100 3.3125
        4.133 3.3027
        4.959 3.2978
        6.199 3.2921
        7.293 3.2874
        8.266 3.2831
        9.537 3.2769
        10.33 3.2727
        11.27 3.2671
        12.40 3.2597
        13.78 3.2493
        15.50 3.2336
        17.71 3.2081
        19.07 3.1866
  - type: tabulated k
    data: |
        0.40 1.38E-04
        0.41 1.41E-04
        0.42 1.44E-04
        0.43 1.45E-04
        0.44 1.50E-04
        0.45 1.55E-04
        0.46 1.60E-04
        0.47 1.66E-04
        0.48 1.71E-04
        0.49 1.75E-04
        0.50 1.80E-04
        0.51 1.86E-04
        0.52 1.90E-04
        0.53 1.95E-04
        0.54 2.00E-04
        0.55 2.06E-04
        0.56 2.11E-04
        0.57 2.15E-04
        0.58 2.21E-04
        0.59 2.27E-04
        0.60 2.32E-04
        0.61 2.37E-04
        0.62 2.42E-04
        0.63 2.49E-04
        0.64 2.54E-04
        0.65 2.60E-04
        0.66 2.66E-04
        0.67 2.71E-04
        0.68 2.79E-04
        0.69 2.85E-04
        0.70 2.92E-04
        0.71 2.98E-04
        0.72 3.05E-04
        0.73 3.12E-04
        0.74 3.23E-04
        0.75 3.31E-04
        0.76 3.39E-04
        0.77 3.48E-04
        0.78 3.58E-04
        0.79 3.68E-04
        0.80 3.80E-04
        0.81 3.92E-04
        0.82 4.07E-04
        0.83 4.25E-04
        0.84 4.48E-04
        0.85 4.54E-04
        0.86 2.13E-04
        0.87 1.97E-04
        0.88 1.68E-04
        0.89 1.03E-04
        0.90 4.15E-05
        0.91 2.02E-05
        0.92 1.66E-05
        0.93 1.53E-05
        0.94 1.49E-05
        0.95 1.45E-05
        0.96 1.41E-05
        0.97 1.38E-05
        0.98 1.35E-05
        0.99 1.32E-05
        1.00 1.29E-05
        1.01 1.27E-05
        1.02 1.25E-05
        1.03 1.23E-05
        1.04 1.21E-05
        1.05 1.18E-05
        1.06 1.15E-05
        1.07 1.12E-05
        1.08 1.08E-05
        1.09 1.06E-05
        1.10 1.04E-05
        1.11 1.01E-05
        1.12 9.78E-06
        1.13 9.40E-06
        1.14 8.96E-06
        1.15 8.54E-06
        1.16 8.15E-06
        1.17 7.75E-06
        1.18 7.32E-06
        1.19 6.87E-06
        1.20 6.41E-06
        1.21 5.95E-06
        1.22 5.54E-06
        1.23 5.26E-06
        1.24 4.83E-06
        1.25 4.36E-06
        1.26 4.18E-06
        1.27 3.97E-06
        1.28 3.69E-06
        1.29 3.34E-06
        1.30 3.09E-06
        1.31 2.94E-06
        1.32 2.84E-06
        1.33 2.67E-06
        1.34 2.55E-06
        1.35 2.49E-06
        1.36 2.44E-06
        1.37 2.38E-06
        1.38 1.82E-06
        1.39 1.77E-06
        1.40 1.74E-06
        1.41 1.71E-06
        1.42 1.65E-06
        1.43 1.52E-06
        1.44 1.31E-06
        1.45 1.17E-06
        1.46 1.11E-06
        1.47 1.04E-06
        1.48 9.66E-07
        1.49 9.04E-07
        1.50 8.49E-07
        1.51 8.05E-07
        1.52 7.71E-07
        1.53 7.45E-07
        1.54 7.20E-07
        1.55 6.90E-07
        1.56 6.42E-07
        1.57 5.63E-07
        1.58 4.86E-07
        1.59 4.40E-07
        1.60 4.19E-07
        1.61 4.09E-07
        1.62 4.08E-07
        1.63 4.14E-07
        1.64 4.24E-07
        1.65 4.36E-07
        1.66 4.35E-07
        1.67 4.07E-07
        1.68 3.40E-07
        1.69 2.55E-07
        1.70 1.81E-07
        1.71 1.68E-07
        1.72 2.42E-07
        1.73 3.68E-07
        1.74 4.55E-07
        1.75 3.72E-07
        1.76 8.94E-08
        1.77 -2.36E-07
        1.78 -3.49E-07
        1.79 -1.34E-07
        1.80 1.82E-07
        1.81 4.28E-07
        1.82 4.62E-07
        1.83 2.57E-07
        1.84 0.00E+00
        1.85 0.00E+00
        1.86 0.00E+00
        1.87 0.00E+00
        1.88 0.00E+00
        1.89 0.00E+00
        1.90 0.00E+00
        1.91 0.00E+00
        1.92 0.00E+00
        1.93 0.00E+00
        1.94 0.00E+00
        1.95 0.00E+00
        1.96 0.00E+00
        1.97 0.00E+00
        1.98 0.00E+00
        1.99 0.00E+00
        2.00 0.00E+00
        2.50 0.00E+00
        2.55 0.00E+00
        2.60 0.00E+00
        2.65 0.00E+00
        2.70 0.00E+00
        2.75 0.00E+00
        2.80 0.00E+00
        2.85 0.00E+00
        2.90 0.00E+00
        2.95 0.00E+00
        3.00 0.00E+00
        3.05 0.00E+00
        3.10 0.00E+00
        3.15 0.00E+00
        3.20 0.00E+00
        3.25 0.00E+00
        3.30 0.00E+00
        3.35 0.00E+00
        3.40 0.00E+00
        3.45 0.00E+00
        3.50 0.00E+00
        3.55 0.00E+00
        3.60 0.00E+00
        3.65 0.00E+00
        3.70 0.00E+00
        3.75 0.00E+00
        3.80 0.00E+00
        3.85 0.00E+00
        3.90 0.00E+00
        3.95 0.00E+00
        4.00 0.00E+00
        4.05 0.00E+00
        4.10 0.00E+00
        4.15 0.00E+00
        4.20 0.00E+00
        4.25 0.00E+00
        4.30 0.00E+00
        4.35 0.00E+00
        4.40 0.00E+00
        4.45 0.00E+00
        4.50 0.00E+00
        4.55 0.00E+00
        4.60 0.00E+00
        4.65 0.00E+00
        4.70 0.00E+00
        4.75 0.00E+00
        4.80 0.00E+00
        4.85 0.00E+00
        4.90 0.00E+00
        4.95 0.00E+00
        5.00 0.00E+00
        5.05 0.00E+00
        5.10 0.00E+00
        5.15 0.00E+00
        5.20 0.00E+00
        5.25 0.00E+00
        5.30 0.00E+00
        5.35 0.00E+00
        5.40 0.00E+00
        5.45 0.00E+00
        5.50 0.00E+00
        5.55 0.00E+00
        5.60 0.00E+00
        5.65 0.00E+00
        5.70 0.00E+00
        5.75 0.00E+00
        5.80 0.00E+00
        5.85 0.00E+00
        5.90 0.00E+00
        5.95 0.00E+00
        6.00 0.00E+00
        6.05 0.00E+00
        6.10 0.00E+00
        6.15 0.00E+00
        6.20 0.00E+00
        6.25 0.00E+00
        6.30 0.00E+00
        6.35 0.00E+00
        6.40 0.00E+00
        6.45 0.00E+00
        6.50 0.00E+00
        6.55 0.00E+00
        6.60 0.00E+00
        6.65 0.00E+00
        6.70 0.00E+00
        6.75 0.00E+00
        6.80 0.00E+00
        6.85 0.00E+00
        6.90 0.00E+00
        6.95 0.00E+00
        7.00 0.00E+00
        7.05 0.00E+00
        7.10 0.00E+00
        7.15 0.00E+00
        7.20 0.00E+00
        7.25 0.00E+00
        7.30 0.00E+00
        7.35 0.00E+00
        7.40 0.00E+00
        7.45 0.00E+00
        7.50 0.00E+00
        7.55 0.00E+00
        7.60 0.00E+00
        7.65 0.00E+00
        7.70 0.00E+00
        7.75 0.00E+00
        7.80 0.00E+00
        7.85 0.00E+00
        7.90 0.00E+00
        7.95 0.00E+00
        8.00 0.00E+00
        8.05 0.00E+00
        8.10 0.00E+00
        8.15 0.00E+00
        8.20 0.00E+00
        8.25 0.00E+00
        8.30 0.00E+00
        8.35 0.00E+00
        8.40 0.00E+00
        8.45 0.00E+00
        8.50 0.00E+00
        8.55 0.00E+00
        8.60 0.00E+00
        8.65 0.00E+00
        8.70 0.00E+00
        8.75 0.00E+00
        8.80 0.00E+00
        8.85 0.00E+00
        8.90 0.00E+00
        8.95 0.00E+00
        9.00 0.00E+00
        9.05 0.00E+00
        9.10 0.00E+00
        9.15 0.00E+00
        9.20 0.00E+00
        9.25 0.00E+00
        9.30 0.00E+00
        9.35 0.00E+00
        9.40 0.00E+00
        9.45 0.00E+00
        9.50 0.00E+00
        9.55 0.00E+00
        9.60 0.00E+00
        9.65 0.00E+00
        9.70 0.00E+00
        9.75 0.00E+00
        9.80 0.00E+00
        9.85 0.00E+00
        9.90 0.00E+00
        9.95 0.00E+00
        10.00 0.00E+00
        10.05 0.00E+00
        10.10 0.00E+00
        10.15 0.00E+00
        10.20 0.00E+00
        10.25 0.00E+00
        10.30 0.00E+00
        10.35 0.00E+00
        10.40 0.00E+00
        10.45 0.00E+00
        10.50 0.00E+00
        10.55 0.00E+00
        10.60 0.00E+00
        10.65 0.00E+00
        10.70 0.00E+00
        10.75 0.00E+00
        10.80 0.00E+00
        10.85 0.00E+00
        10.90 0.00E+00
        10.95 0.00E+00
        11.00 0.00E+00
        11.05 0.00E+00
        11.10 0.00E+00
        11.15 0.00E+00
        11.20 0.00E+00
        11.25 0.00E+00
        11.30 0.00E+00
        11.35 0.00E+00
        11.40 0.00E+00
        11.45 0.00E+00
        11.50 0.00E+00
        11.55 0.00E+00
        11.60 0.00E+00
        11.65 0.00E+00
        11.70 0.00E+00
        11.75 0.00E+00
        11.80 0.00E+00
        11.85 0.00E+00
        11.90 0.00E+00
        11.95 0.00E+00
        12.00 0.00E+00
        12.05 0.00E+00
        12.10 0.00E+00
        12.15 0.00E+00
        12.20 0.00E+00
        12.25 0.00E+00
        12.30 0.00E+00
        12.35 0.00E+00
        12.40 0.00E+00
        12.45 0.00E+00
        12.50 1.17E-07
        12.55 2.67E-06
        12.60 5.36E-06
        12.65 8.18E-06
        12.70 1.12E-05
        12.75 1.48E-05
        12.80 1.90E-05
        12.85 2.28E-05
        12.90 2.59E-05
        12.95 2.79E-05
        13.00 2.90E-05
        13.05 2.83E-05
        13.10 2.51E-05
        13.15 2.08E-05
        13.20 1.65E-05
        13.25 1.29E-05
        13.30 1.04E-05
        13.35 8.62E-06
        13.40 7.52E-06
        13.45 6.97E-06
        13.50 6.80E-06
        13.55 6.89E-06
        13.60 7.04E-06
        13.65 7.07E-06
        13.70 7.01E-06
        13.75 7.09E-06
        13.80 7.58E-06
        13.85 8.62E-06
        13.90 9.85E-06
        13.95 1.08E-05
        14.00 1.17E-05
        14.05 1.28E-05
        14.10 1.42E-05
        14.15 1.54E-05
        14.20 1.60E-05
        14.25 1.64E-05
        14.30 1.68E-05
        14.35 1.69E-05
        14.40 1.66E-05
        14.45 1.63E-05
        14.50 1.60E-05
        14.55 1.58E-05
        14.60 1.58E-05
        14.65 1.56E-05
        14.70 1.47E-05
        14.75 1.34E-05
        14.80 1.30E-05
        14.85 1.32E-05
        14.90 1.42E-05
        14.95 1.54E-05
        15.00 1.41E-05
        15.05 1.30E-05
        15.10 1.24E-05
        15.15 1.22E-05
        15.20 1.24E-05
        15.25 1.30E-05
        15.30 1.38E-05
        15.35 1.48E-05
        15.40 1.58E-05
        15.45 1.71E-05
        15.50 1.86E-05
        15.55 2.03E-05
        15.60 2.26E-05
        15.65 2.51E-05
        15.70 2.77E-05
        15.75 3.04E-05
        15.80 3.32E-05
        15.85 3.61E-05
        15.90 3.94E-05
        15.95 4.31E-05
        16.00 4.72E-05
        16.05 5.14E-05
        16.10 5.53E-05
        16.15 5.90E-05
        16.20 6.25E-05
        16.25 6.59E-05
        16.30 6.91E-05
        16.35 7.22E-05
        16.40 7.53E-05
        16.45 7.84E-05
        16.50 8.13E-05
        16.55 8.38E-05
        16.60 8.54E-05
        16.65 8.64E-05
        16.70 8.74E-05
        16.75 8.85E-05
        16.80 8.98E-05
        16.85 9.15E-05
        16.90 9.34E-05
        16.95 9.54E-05
        17.00 9.80E-05
        17.05 9.85E-05
        17.10 1.12E-04
        17.15 1.29E-04
        17.20 1.50E-04
        17.25 1.77E-04
        17.30 1.83E-04
        17.35 1.85E-04
        17.40 1.88E-04
        17.45 1.91E-04
        17.50 1.94E-04
        17.55 1.98E-04
        17.60 2.02E-04
        17.65 2.08E-04
        17.70 2.18E-04
        17.75 2.31E-04
        17.80 2.49E-04
        17.85 2.81E-04
        17.90 3.19E-04
        17.95 3.78E-04
        18.00 4.46E-04
        18.05 5.08E-04
        18.10 5.67E-04
        18.15 6.41E-04
        18.20 7.06E-04
        18.25 8.05E-04
        18.30 9.28E-04
        18.35 1.04E-03
        18.40 1.21E-03
        18.45 1.42E-03
        18.50 1.64E-03
        18.55 1.93E-03
        18.60 2.20E-03
        18.65 2.51E-03
        18.70 2.71E-03
        18.75 2.93E-03
        18.80 3.17E-03
        18.85 3.47E-03
        18.90 3.90E-03
        18.95 4.58E-03
        19.00 5.29E-03
        19.05 5.92E-03
        19.10 6.33E-03
        19.15 6.48E-03
        19.20 6.47E-03
        19.25 5.53E-03
        19.30 4.79E-03
        19.35 4.35E-03
        19.40 4.03E-03
        19.45 3.80E-03
        19.50 3.74E-03
        19.55 3.81E-03
        19.60 3.88E-03
        19.65 3.89E-03
        19.70 3.81E-03
        19.75 3.60E-03
        19.80 3.43E-03
        19.85 3.30E-03
        19.90 3.22E-03
        19.95 3.17E-03
        20.00 3.15E-03
        20.05 3.15E-03
        20.10 3.15E-03
        20.15 3.17E-03
        20.20 3.17E-03
        20.25 3.18E-03
        20.30 3.18E-03
        20.35 3.16E-03
        20.40 3.13E-03
        20.45 3.09E-03
        20.50 3.05E-03
        20.55 2.98E-03
        20.60 2.86E-03
        20.65 2.72E-03
        20.70 2.57E-03
        20.75 2.43E-03
        20.80 2.35E-03
        20.85 2.29E-03
        20.90 2.25E-03
        20.95 2.23E-03
        21.00 2.24E-03
        21.05 2.27E-03
        21.10 2.32E-03
        21.15 2.37E-03
        21.20 2.41E-03
        21.25 2.46E-03
        21.30 2.51E-03
        21.35 2.57E-03
        21.40 2.65E-03
        21.45 2.73E-03
        21.50 2.81E-03
        21.55 2.90E-03
        21.60 2.99E-03
        21.65 3.10E-03
        21.70 3.22E-03
        21.75 3.35E-03
        21.80 3.51E-03
        21.85 3.68E-03
        21.90 3.88E-03
        21.95 4.07E-03
        22.00 4.22E-03
        22.05 4.32E-03
        22.10 4.39E-03
        22.15 4.43E-03
        22.20 4.46E-03
        22.25 4.46E-03