Synthesis of Azo-BE: nonlinear optical properties studies at visible, cw, laser beams

4-((6-Methylbenzo[d]thiazol-2-yl)diazenyl)phenyl 4-chlorobenzoate(Azo-BE) is synthesized and characterized using ¹HNMR and ¹³CNMR, mass spectra, differential scanning calorimetry, optimized structure and calculation of HOMO (H) and LUMO (L) and gap energy. The Azo-BE nonlinear optical properties using cw laser beam of wavelength 473 nm are studied. The nonlinear refraction index, n₂, of Azo-BE is calculated using the same wavelength via the diffraction patterns and Z-scan. n₂ value of 3.121 × 10^–11 m²/W is obtained. It appears that Azo-BE bare no nonlinear absorption coefficient, β, at 473 nm beam and power input used. All optical switching, static and dynamic, are tested in Azo-BE using 473 and 532 nm laser beams.