相关的自发参量上转换和下转换光子表现出光束亮度高、空间发散小以及在很宽频谱范围内可调谐等特点。
The correlated spontaneous up conversion and down conversion photons exhibits a high beam brightness, small spatial divergence, and broad spectral tunability.
在分析了振动信号固有特性的基础上，提出了一种基于频域积分的振动参量转换波形修正算法。
Based on the analysis of the inherent characteristic of the signal, an algorithm that called the modification of the vibration parameter transform based on frequency domain integration is introduced.
在物理模型数值模拟的基础上，确定了上述关系中的待定参量，给出了能量转换和中子产额的定标规律。
Based on numerical simulation for the physical model, the uncertain parameters stated above are determined, and both the scaling lows of energy conversion and neutron yield are given.
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