Characterization of nonlinear optical properties and optical power limiting of leishman dye using z-scan technique

Abstract EN

The nonlinear optical properties of Leishman dye in Dimethyl (formamide) (DMF) at different concentrations were characterized using the z-scan technique with continuous wave (CW) solid-state laser (SSL) operating at wavelength 532 nm.

The nonlinear refractive index (n2), the nonlinear absorption coefficient (β), and the nonlinear optical susceptibility χ (3) of Leishman dye at different concentrations were determined.

The Leishman dye solution exhibited negative nonlinearity (self-defocusing) and saturable absorption.

Optical power limiting effect was studied for the Leishman dye solution at different concentrations.

The results show that the Leishman dye exhibits strong nonlinearities and these imply that the investigated Leishman dye can be used as a promising material for applications in the optical power limiting and photonic devices.