Schott KzFS 8, 365nm - 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	1.60299210E+00;
B2	2.67572377E-01;
B3	9.76091468E-01;
C1	1.06584622E-02;
C2	4.76203179E-02;
C3	7.64325728E+01;