--- /dev/null
+Schott LaK N22, 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 1.14229781E+00;\r
+B2 5.35138441E-01;\r
+B3 1.04088385E+00;\r
+C1 5.85778594E-03;\r
+C2 1.98546147E-02;\r
+C3 1.00834017E+02;
\ No newline at end of file