Não linearidades de segunda ordem em cristais orgânicos de alaninas dopadas com metais de transição e alcalino terroso (Mn, Fe, Ni e Mg).

Abstract

In this work, a class of optical materials for nonlinear crystals organic alanine which they have been less studied from the point of view of nonlinear optical. The organic crystals were chosen because previous studies indicate that there is no possibility of high second order nonlinear optical materials such as for example the effect of second harmonic generation, and having indicia which show good transparency to particular regions of the electromagnetic spectrum. Additionally properties these materials exhibit optical birefringence phase matching and, thus arousing the interest in the production of optical devices with a higher efficiency light modulation. The linear optical absorption properties of organic compounds alanine crystals doped with transition metals (Mn, Fe, Ni, Mg) were observed in different regions of the electromagnetic spectrum with these being regions of the visible, ultraviolet and infrared. By using the technique of luminescence with a laser source of the type Nd-YAG pulsed spectra observed some process related to the generation of second harmonic in the region of 532 nm.