Schott BaSF 64A, 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:	1.65554268E+00;
B2:	1.71319770E-01;
B3:	1.33664448E+00;
C1:	1.04485644E-02;
C2:	4.99394756E-02;
C3:	1.18961472E+02;