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Real and imaginary indices of refraction of the sea salt at T=293 K; #entries 61
References: Dorsey,1940; Volz, 1972a; Shettle and Fenn, 1979;

 Wavelength  Real    Imaginary
  micron     index   index 
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     0.200  1.510  1.0E-04
     0.250  1.510  5.0E-06
     0.300  1.510  2.0E-06
     0.337  1.510  4.0E-07
     0.400  1.500  3.0E-08
     0.488  1.500  2.0E-08
     0.515  1.500  1.0E-08
     0.550  1.500  1.0E-08
     0.633  1.490  2.0E-08
     0.694  1.490  1.0E-07
     0.860  1.480  3.0E-06
     1.060  1.470  2.0E-04
     1.300  1.470  4.0E-04
     1.536  1.460  6.0E-04
     1.800  1.450  8.0E-04
     2.000  1.450  0.0010
     2.250  1.440  0.0020
     2.500  1.430  0.0040
     2.700  1.400  0.0070
     3.000  1.610  0.0100
     3.200  1.490  0.0030
     3.392  1.480  0.0020
     3.500  1.480  0.0016
     3.750  1.470  0.0014
     4.000  1.480  0.0014
     4.500  1.490  0.0014
     5.000  1.470  0.0025
     5.500  1.420  0.0036
     6.000  1.410  0.0110
     6.200  1.600  0.022
     6.500  1.460  0.005
     7.200  1.420  0.007
     7.900  1.400  0.013
     8.200  1.420  0.020
     8.500  1.480  0.026
     8.700  1.600  0.030
     9.000  1.650  0.028
     9.200  1.610  0.026
     9.500  1.580  0.018
     9.800  1.560  0.016
    10.000  1.540  0.015
    10.591  1.500  0.014
    11.000  1.480  0.014
    11.500  1.480  0.014
    12.500  1.420  0.016
    13.000  1.410  0.018
    14.000  1.410  0.023
    14.800  1.430  0.030
    15.000  1.450  0.035
    16.400  1.560  0.090
    17.200  1.740  0.120
    18.000  1.780  0.130
    18.500  1.770  0.135
    20.000  1.760  0.152
    21.300  1.760  0.165
    22.500  1.760  0.180
    25.000  1.760  0.205
    27.900  1.770  0.275
    30.000  1.770  0.300
    35.000  1.760  0.500
    40.000  1.740  1.00