Schott PSK50, 334nm - 2325nm
USER
2 1
SQRT(1+B1*wvl^2/(wvl^2-C1)+B2*wvl^2/(wvl^2-C2)+B3*wvl^2/(wvl^2-C3))
0
B1 1.322035e+000
C1 7.278645e-003
B2 7.230813e-002
C2 2.799217e-002
B3 8.669996e-001
C3 9.106430e+001