Schott FK54, 297nm - 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 7.453204e-001
C1 3.581716e-003
B2 3.023301e-001
C2 1.228850e-002
B3 1.018850e+000
C3 2.130175e+002