Author/Authors :
Rau، نويسنده , , I. and Armatys، نويسنده , , P. and Chollet، نويسنده , , P.-A. and Kajzar، نويسنده , , F. and Bretonnière، نويسنده , , Y. and Andraud، نويسنده , , C.، نويسنده ,
Abstract :
Second order nonlinear optical properties of poled thin films of a guest–host system consisting in a charge transfer chromophore dissolved in poly bis(phenol A carbonate) matrix were studied by optical second harmonic generation and as function of chromophore content. The chromophores were oriented by the corona poling technique. The optical microscopy observations evidence a new mechanism of relaxation, which arises from the accelerated chromophore aggregation due to the heating which facilitates their diffusion.
