Schott KzFS N9, 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	1.35457004E+00;
B2	1.51346035E-01;
B3	8.80334400E-01;
C1	8.58526768E-03;
C2	3.90569325E-02;
C3	6.96889290E+01;