Investigation of the Spectral, Hardness, Second-Order NLO and Electrical Characteristics of l-Arginine Hydrobromide Monohydrate Crystals for Laser Technology

Single crystal of l-arginine hydrobromide monohydrate (LAHBM) was grown by the slow evaporation technique at 30°C. The lattice parameters of LAHBM were determined from X-ray diffraction patterns, which revealed a monoclinic crystal structure. The optical band gap and other linear optical parameters were evaluated by optical studies. Vickers microhardness study was carried out to reveal the mechanical properties including the hardness and work hardening coefficient of the grown crystal. The second harmonic generation (SHG) efficiency of the LAHBM crystal was found using a Kurtz–Perry powder setup with a Nd:YAG laser. Other studies including laser damage threshold (LDT), calculation of electronic polarizability, Fermi energy and plasma energy, impedance study, Fourier transform infrared (FTIR) study and dielectric study were carried out for the LAHBM grown crystal.