Abstract
The line spectrum of chromium in ruby has been investigated. New lines have been found at 14 795, 14 950, and 15 178 cm—1. These lines have been identified as belonging to the 2F1 triplet. Similarly, a line at 21 352 cm—1 has been assigned to the 2F2 triplet. It is shown that these levels originate from the 2G and 2D levels, respectively, with considerable admixture from the 2H level.