Concentration dependence of photoinduced birefringence and second-order susceptibility in all-optical poling

摘要

We study photoinduced molecular reorientation of the azobenzene derivative Disperse Red 1 embedded in poly(4-vinylpyridine) polymer matrix. Photoinduced axial order leading to birefringence and polar order leading tosecond-order nonlinear optical (NLO) re