The oblique angle configuration has emerged as an invaluable tool for the deposition of nanostructured thin films. In this article, we use this technique to investigate the optical properties of cadmium oxide nanostructure. Cadmium metal was deposited normally (θ=˚0) and obliquely at different angles (50º and 70º) by using vacuum evaporation technique on a quartz substrate, then oxidized in air at 773K for the 1:30 hour.The absorbance and transmittance spectrum have been investigated by using UV-Visible spectrophotometer in the range300-1100nm. The optical energy gap (Eg), refractive index (n), extinction coefficient (k), real dielectric constant (εr) and imaginary dielectric constant (εi) have been determined.
