Spectral characterization of some second harmonic generation materials from the amino acid family: l-Threonine and l-prolinium tartrate

Abstract

Single crystals of the organic non-linear optical materials l-threonine (I) and l-prolinium tartrate (II) were grown using a home-made crystal growth setup (MKN setup). The grown crystals were characterized using X-ray diffraction, Infrared (IR), UV–vis–NIR and Circular dichroism (CD) spectroscopy. Measurements of Vicker’s microhardness, laser damage threshold (LDT) values and second harmonic generation (SHG) efficiencies are reported. Thermal and dielectric studies were also carried out.