Measurements of δn/δT in solid-state dye-laser gain media

Measurements of partial derivativen/partial derivativeT for polymeric solid-state dye-laser gain media have been performed. The method employed in these measurements is simple transmission of a laser beam, at minimum deviation, through a gain matrix configured in a prismatic geometry. For rhodamine 6G-doped modified poly(methyl methacrylate) partial derivativen/partial derivativeT = - 1.4 +/- 0.2 x 10(-4) K-1 which is found to be a representative value for dye-doped polymeric gain media.