The series density formulae of the binary phase grating are obtained from the general complex amplitude transmittance formulae through Fourier integral.
它直接从位相物体振幅透过率的一般公式出发，运用傅里叶积分，求得二进制位相光栅各级衍射光强度的通式。
The amplitude transmittance of one of them is assumod to be the same function as the coherent impulse response of the system, and that of the other being complex conjugate of the former.
它包括使用两个复数透光片，其中一个振幅透射率等于该系统的相干脉冲响应函数，另一则为其共轭复数。
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