Optical Characterizations of L-Alaninium Maleate Single Crystals

Abstract

The innovation, with an eye for application, has been the key to successful crystal harvesting. It is realized that crystalline material is intrinsically applied and basic research in this area needs to be directed and motivated by specific applications in technology. Combination of aminoacids with organic materials gets increased efficiency made this study of optical characterization of l-alaninium maleate-a novel organic NLO crystal. The single crystals are grown by slow evaporation technique by mixing L-Alanine with maleic acid in the ratio 1:0.25, 1:0.5, 1:0.75, 1:1. Single crystal X-ray diffraction study is compared with powder X-ray diffraction study. The FTIR spectrum is drawn for the crystals and their functional groups were determined. The UV-Vis-NIR spectrum shows less optical absorption in the entire visible region. The band gap energy of the crystals were calculated. Non-Linear optical efficiency was evaluated by Kurtz and Perry powder technique using Q-switched Nd-YAG laser.