Schott LaF 11A, 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	1.66890817E+00;
B2	3.11963471E-01;
B3	9.76838785E-01;
C1	1.13869898E-02;
C2	5.00311048E-02;
C3	8.73247266E+01;