User layer parameterization for low index material
USER
2 1
A+B/wvl+C/wvl^2+D/wvl^3+E/wvl^4+f/wvl^5+g/wvl^6
0
A 1.489729
B 0.007646
C 0.000999
D 0.000000
E 0.000075
f 0.000000
g 0.000000