Schott PK1, 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 9.337732e-001
C1 5.436856e-003
B2 3.007760e-001
C2 1.665324e-002
B3 9.376012e-001
C3 9.616826e+001