Schott LaF 22A, 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	1.85985046E+00;
B2	2.19921174E-01;
B3	1.34141119E+00;
C1	1.09833145E-02;
C2	5.08016771E-02;
C3	1.14555542E+02;