Fresnel and Fraunhofer Approximations

This chapter contains sections titled: Introduction Diffraction in the Fresnel Region FFT Implementation of Fresnel Diffraction Paraxial Wave Equation Diffraction in the Fraunhofer Region Diffraction Gratings Fraunhofer Diffraction By a Sinusoidal Amplitude Grating Fresnel Diffraction By a Sinusoidal Amplitude Grating Fraunhofer Diffraction with a Sinusoidal Phase Grating Diffraction Gratings Made of Slits