--- /dev/null
+Schott LaK 11, 313nm - 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 1.05088219E+00;\r
+B2 6.51491084E-01;\r
+B3 1.03286344E+00;\r
+C1 4.82822430E-03;\r
+C2 1.83961539E-02;\r
+C3 8.98416133E+01;
\ No newline at end of file