Investigations on the Low Temperature Solution growth, etching, laser damage threshold, Photoluminescence, electrical characterization and nonlinear optical properties of organic material: Ammonium hydrogen l-malate

Abstract

Optically good quality bulk organic nonlinear optical crystal ammonium hydrogen l-malate (AHM) of crystal size 25mm×26mm×26mm has been grown by slow cooling (Low Temperature Solution) method. The grown crystals were subjected to various characterization studies such as chemical etching, UV–vis spectrum, birefringence, laser damage threshold, Photoluminescence studies and second harmonic generation studies. The quality was ascertained by birefringence studies. Piezoelectric charge coefficients of the grown crystal have been determined. The dielectric constant, dielectric loss and ac conductivity of the compound were calculated at different temperatures and frequencies to analyze the electrical properties.