Third-order optical nonlinearities of spray deposited l-glutamic acid thin films using Z-scan and f-scan

Abstract

The l-glutamic acid thin films prepared using a lucrative process simplified spray pyrolysis (or) perfume atomizer technique. The absorption coefficient, refractive index, extinction coefficient, imaginary and real parts of dielectric constant, electrical and optical conductivity, optical polarization, electrical and optical susceptibility were inspected with spectrum of UV–Visible spectroscopy. The optical properties for varying molar concentration and wavelength were investigated to reveal the characteristic features of the chosen sample. In addition, the nonlinear optical constants, third-order susceptibility, nonlinear refractive index, nonlinear absorption coefficient, intensity dependent refractive coefficient and change in refractive index were also examined with Z-scan technique. The optical nonlinearities were also assayed using the Eclipse and f-scan experiments. The difference in the nonlinear optical responses relating to selected functional parameters has been considered significantly along with optical limiting behavior.