实验中制作出了高衍射效率和信噪比的体积全息光栅和反射全息图。
The holographic volume gratings and reflection holograms having high diffraction efficiencies and signal noise ratio are also fabricated in experiment.
应用天线理论中的电流分布法，首次推导了具有连续位相结构的反射式毫米波衍射天线的远场衍射图计算公式。
The far field diffractive pattern calculating formula for diffraction antenna with continuous phase structure is derived by current distribution method in antenna theory for the first time.
实验表明，反射全息图的衍射光谱呈现出明显的非对称性，并伴随着一系列次峰的出现。
The experiments has shown that the spectrum of reflection hologram presents obvious non-symmetry, and is accompanied with a series of sub-peaks.
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