Schott PSK2, 313nm - 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 1.179761e+000
C1 6.479880e-003
B2 2.466866e-001
C2 2.040667e-002
B3 9.894569e-001
C3 9.526247e+001