Schott F 14, 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	1.31949846E+00;
B2	1.81106999E-01;
B3	9.21850182E-01;
C1	9.80475193E-03;
C2	4.65330997E-02;
C3	1.09855329E+02;