对透射闪耀光栅的傅里叶分析

摘要

the general transmission grating spectroscopy of disadvantage is that not the dispersion of the zero level great Lord takes up a large part of the incident energy,the remaining energy to be assigned to al levels of the main great,used for analysis of dispersion of the spectral line caused by assigned to only smal fraction of energy.In the actual application,try to focus your energy alocation to have to use the magnitude spectrum,blazed grating is designed for this purpose.Research from different direction incident transmission of blazed grating transmission function,using the Fourier optics,theoreticaly analyzed transmission blazed grating diffraction pattern of complex amplitude distribution of light intensity and blaze Angle and the relationship between the wavelength.%一般的透射光栅光谱的缺点是，没有色散的零级主极大占去了入射能量中的很大一部分，剩下的能量又要分配到正负各级主极大上，造成用来分析的有色散的那些谱线中只分配到很小的能量。在实际的应用中，要设法把能量集中分配到所要利用的那级光谱中，闪耀光栅就是为此目的设计的。研究从不同方向入射透射闪耀光栅的透射函数，利用傅里叶光学，从理论上分析透射闪耀光栅衍射图样的复振幅和光强分布与闪耀角及波长的关系。