Schott LaSF 33, 405nm - 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	1.90477227E+00;
B2	2.48374150E-01;
B3	1.18108995E+00;
C1	1.17756540E-02;
C2	5.28082514E-02;
C3	1.08154737E+02;