Investigation on the Linear and Nonlinear Optical Properties of L-Lysine Doped Ammonium Dihydrogen Phosphate Crystal for NLO Applications

In present investigation L-lysine doped ADP crystal has been grown by slow evaporation technique. The crystalline nature of the grown crystal was confirmed using powder X-ray diffraction technique. The optical studies were carried to examine optical transparency and determine the optical constants of the grown crystal quenching the optoelectronics applications. The optical band gap of grown crystal is found to be 4.7eV. The third order nonlinear behaviour has been investigated using Z-scan technique at 632.8 nm. The nonlinear third order susceptibility of grown crystal is found to be 1 .578 x 10 -5 esu. The nonlinear index of refraction and absorption coefficient were determined to explore the optical limiting applications of the grown NLO crystal. The kurtz powder test confirmed the second harmonic generations by the grown crystal.