Optical field, interaction between light and matter; basic concept of reflection (specular and diffuse), refraction, transmission, absorption and scattering, speckle and its applications, coherence: temporal and spatial, van Cittert-Zernike theorem and its applications, polarized light, Stokes parameters, Jones and Muller matrices, Interferometer and its extension to polarization domain, diffraction, optical singular fields. Gaussian theory of optical system