--- /dev/null
+Lead Telluride (From Palik I: pp. 542)\r
+ANGSTROMS\r
+NK\r
+ 2066. 0.8 0.92\r
+ 2254. 0.75 0.87\r
+ 2480. 0.72 1.0\r
+ 2755. 0.65 1.22\r
+ 3100. 0.7 1.55\r
+ 3542. 0.86 1.85\r
+ 4133. 1.0 2.2\r
+ 4959. 1.35 2.86\r
+ 8266. 3.8 3.1\r
+ 12400. 4.55 2.2\r