Simulating Diffraction of Sine Grating by MATLAB
用MATLAB模拟正弦光栅的衍射

In accordance with the abstractness of optical theory,the diffraction experiment of a sine grating is simulated by using the Matlab and a conclusion that the difference between a sine grating and a black and white grating in diffraction is the transmittance of the aperture and the distance of one step and zero step bright lines of the sine grating is proportional to the grating frequency,transfer distance and the wavelength of the incident light and is independent of the grating parameters is derived.This provides the theoretical basis for the further widening of the application of the sine gratings.