Accueil > Recherche > Publications / brevets > Publications équipe SMALL > Photocomm Photostrus Molec

Structural, thermal and optical characterization of a Schiff base as a new organic material for nonlinear optical crystals and films with reversible noncentrosymmetry

M. Rodriguez, G. Ramos-Ortiz, J. L. Maldonado, V. M. Herrera-Ambriz, O. Dominguez, R. Santillan, N. Farfan and K. Nakatani Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2011, 79, 5, 1757-61

Macroscopic single crystals of (E)-5-(diethylamino)-2-((3,5-dinitrophenylimino)methyl)phenol (DNP) were obtained from slow cooling of chloroform or dichlorometane saturated solutions at controlled temperature. X-ray diffraction analysis showed that this compound crystallizes in a noncentrosymmetric space group (P2(1)2(1)2(1)). Thermal analysis was performed and indicated that the crystals are stable until 260 degrees C. Second-order nonlinear optical properties of DNP were experimentally investigated in solution through EFISH technique and in solid state through the Kurtz-Perry powder technique. Crystals of compound DNP exhibited a second-harmonic signals 39 times larger than of the technologically useful potassium dihydrogenphosphate (KDP) under excitation at infrared wavelengths. In addition, the second-order nonlinear optical properties of DNP were also studied at visible wavelengths through the photorefractive effect and applied to demonstrate dynamic holographic reconstruction.

Type :

Publication

Dates :

Paru le 24 mai 2011

Informations complémentaires :

doi 10.1016/j.saa.2011.05.051