--- /dev/null
+Schott LaK N16A, 334nm - 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 1.57607885E+00;\r
+B2 3.67649802E-01;\r
+B3 1.16490334E+00;\r
+C1 7.78079836E-03;\r
+C2 2.59315960E-02;\r
+C3 8.23723198E+01;
\ No newline at end of file