## Example input file without minimal input parameters,
comment             Crystalline H2O (3.1 micron band)
file_output         nk_H2O_crystal_50K_Fig7.txt
file_spectrum       abs_H2O_crystal_50K_Fig7.txt
file_substrate      au_nk.txt
thickness_cm        0.226e-4
visible_index       1.36
goal                1.0E-05
step_adapt          True
step                0.01
step_dnrate         0.02
step_interval       2
step_max            0.01
step_min            1.0E-5
step_uprate	    0.01																																																																																																																																																																																																																																																																																																																																																																																														     
approx_terms        -0.01
xrange1             3600
xrange2             2800
n_fix               True
n_limit             0.05
lorentz_hgt         0.1
lorentz_wid         20
iteration_max      10000