In recent years, nonlinear optics has developed into a field of major study because of rapid advances in laser technology. Nonlinear optical techniques have been applied to many diverse disciplines such as atomic, molecular, solid-state physics, materials science, chemical dynamics, surface interface sciences, biophysics, and medicine. The development of new advanced nonlinear optical materials for special applications is of crucial importance in technical areas such as optoelectronics, acoustic-optic conversions, optical signal processing, optical computing, and neuro-network implementation.
