Optical properties of lead-bismuth cuprous glasses

Abstract EN

The optical transmission and absorption spectra in UV-VIS were recorded in the wavelength range 350-800 nm for different glass compositions in the system : (CuO) x (PbO) 50-x (Bi2O3)50 (x = 2.5, 5.0, 7.5, 10.0, 12.5, 15.0, 20.0).

Absorption coefficient {α (λ)}, optical energy gap (Eopt), refractive index (n), optical dielectric constant (ε), Urbach energy (Ee), constant B and ratio of carrier concentration to the effective mass (N / m) have been reported.

The effects of compositions of glasses on these parameters have been discussed.

It has been indicated that a small compositional modification of the glasses lead to an important change in all the optical properties including non-linear behavior.

The optical parameters were found to be almost the same for different glasses in the same family.