Wavefront Conjugation in Dye-Activated Nematics in the field of Pulsed Ruby Laser

Abstract Wavefront conjugation (WFC) of free-running ruby laser by using thermal nonlinearity in dye- activated nematics is demonstrated. Obtained values of the conjugation coefficient R near phase transition to isotropic state are close to 100 %. Temperature dependence of R has been studied theoretically and experimentally.