Measurements of ∂n/∂T in Solid-State Dye-Laser Gain Media

Abstract
Measurements of ∂n/∂T 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) ∂n/∂T = -1.4 ± 0.2 × 10-4 K-1 which is found to be a representative value for dye-doped polymeric gain media.