Schott BaLF 5, 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	1.23751018E+00;
B2	1.16757584E-01;
B3	8.53086255E-01;
C1	8.08113000E-03;
C2	3.49868372E-02;
C3	1.10314185E+02;