Determination of the optical constants, nonlinear optical parameters and threshold limiting of methyl red-epoxy resin film

A methyl red-epoxy resin film is prepared on a glass substrate. The film linear optical properties are studied using the experimentally obtained absorbance and transmittance spectra. The nonlinear optical properties are obtained via the linear measurements and the Z-scan technique. Based on the nonlinear properties, the optical limiting property of the film is investigated. The sample is proven to possess the properties of an optical limiter at the wavelength of 473 nm, as the threshold limiting value of the film is equal to 13.5 mW. Also, the threshold limiting value of the film is compared to the values for materials characterized by having a good thresholds limiting value, and from comparison, it appear that the prepared film in this study has better threshold limiting value than that possessed by these materials.