Tensorial steering of non-linear and luminescent chromophores by multiphoton coherent control

Summary form only given. A noncentrosymmetric equilibrium structure is reached by cycling of joint one- and two-photon absorption processes intertwined with mechanical relaxation pathways such as photoisomerization. This all-optical poling scheme enables us to engineer the symmetry of the photoinduced non-linear tensor by controlling the writing fields polarization for a given molecular symmetry. We extended this light-driven process to fluorescent chromophores imbedded in a polymer matrix, in order to design organic materials which present a conjunction of non-centrosymmetry and luminescence properties. In this work, we applied the all-optical poling scheme to polymer thin films containing the classical DCM laser.