--- /dev/null
+Schott LaF N28, 365nm - 2325nm\r
+USER\r
+2 1\r
+SQRT(1+B1*wvl^2/(wvl^2-C1)+B2*wvl^2/(wvl^2-C2)+B3*wvl^2/(wvl^2-C3))\r
+0\r
+B1 1.75882549E+00;\r
+B2 3.15197670E-01;\r
+B3 1.19029675E+00;\r
+C1 8.72810026E-03;\r
+C2 2.93020832E-02;\r
+C3 8.51780644E+01;
\ No newline at end of file