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Optical properties of lead-bismuth cuprous glasses | ||
| Iraqi Journal of Physics | ||
| Article 1, Volume 8, Issue 12, 2010, Pages 8-12 | ||
| Author | ||
| Firas J. Al-Maliki | ||
| Abstract | ||
| 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. | ||
| Keywords | ||
| Optical properties; Lead; Bismuth | ||
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