采用菲涅尔近似公式和傅里叶级数展开的方法, 分析了罗奇光栅、正弦强度光

栅、正弦振幅光栅的泰伯衍射光场的三维强度分布特征, 给出了计算机模拟的三维强

度分布图, 并讨论了一些在三维传感领域有应用前景的性质。-In th is paper, w e calcu late the 32D in ten sity dist ribu t ion of Talbo t

diff ract ion f ield of the u sually u sed Ronch i grat ing, sine in ten sity grat ing and sine

amp litude grat ing, by app lying F resnel app rox im at ion and them ethod of Fou rier se2

ries expan sion. Compu ter sim u lated 32D diagram s are given, and som e in terest ing

p ropert ies w ith p rom ising app licat ion in 32D sen sing are also discu ssed.