The expanding industrial use of dye lasers requires the scaling up of these instruments and adaptation to long periods of work. Consequently, the choice of materials in contact with solutions of dyes became a question of high relevance. Among the large variety of organic dyes used in dye lasers, the Rhodamines are among the most frequently employed. We wish to report our observations on the relationship between several metals and solutions of Rhodamine 6G and Rhodamine B used in dye lasers.
The tests were performed under static conditions, at room temperature (21 ± 3 C) for 13 to 40 days. Degreased specimens, of known weights, of the same metal (at least one specimen polished at metallographic grade) were hung with Teflon strips in closed vessels and completely immersed in dye solution (2 × 10-3 M Rhodamine 6G and 1.5 × 10-3 M Rhodamine B). At the end of...
