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Spectral, Temporal and Spatial Characteristics of Few Cycle Optical Pulsed Beam

机译:少周期光脉冲光束的光谱,时空特征

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摘要

In this paper, the spectral, temporal and spatial properties of few cycle optical pulsed beam on propagation in free space has been studied. We analyze the spectral shifts of the ultrashort pulse in the far zone, and then discuss the scaling law of the pulsed sources. It is found that by the truncation of the pulsed beam, the scaling law may be destroyed. In this case the spectral shifts on propagation of the few cycle pulses may be observed in experiment. On the other hand, we reveal an analytical form of the pulsed Gaussian beam in free space and analyze the space-time coupling on propagation.
机译:本文研究了少数周期光脉冲光束在自由空间中传播的光谱,时空特征。我们分析了超短脉冲在远区的频谱偏移,然后讨论了脉冲源的缩放定律。发现通过脉冲束的截断,缩放定律可能被破坏。在这种情况下,可以在实验中观察到少数循环脉冲传播时的频谱偏移。另一方面,我们揭示了自由空间中脉冲高斯光束的解析形式,并分析了传播时空耦合。

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