$RCWArefractiveindexreal

$RCWArefractiveindexreal required setting tag the real refractive index. This number needs to be set in the beginning of input file. It relates to $RCWAlamdalength and $RCWAtotallayer.

Example

$RCWArefractiveindexreal 

lamda1 lamda2 lamda3

1       1      1 
0.2     0.2    0.2
...
...
... until the total layer number $RCWAtotallayer

$RCWAsourcelength,$RCWAtotallayer