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arXiv 2208.04429physics.opticsphysics.class-ph
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准单色光学光束的相对论变换

Relativistic transformations of quasi-monochromatic optical beams

Murat Yessenov, Ayman F. Abouraddy

AI总结:

本文研究准单色光学光束在运动探测器下的相对论变换,发现其转化为传播不变的脉冲光束(时空波包),并证明该效应在陆地速度下可观测。

摘要:

相对于光源运动的观察者记录的单色平面波会发生多普勒频移和空间像差。我们在此研究一个通用的、近轴的、光谱相干的准单色光学光束(具有有限横向宽度)在被运动探测器记录时所经历的变换。由于洛伦兹变换引起的时空耦合,单色光束被转换为传播不变的脉冲光束,其群速度等于相对运动的速度,并且属于最近研究的“时空波包”家族。我们表明,从准单色光束到脉冲波包的预测变换即使在陆地速度下也可以观察到。

英文摘要:

A monochromatic plane wave recorded by an observer moving with respect to the source undergoes a Doppler shift and spatial aberration. We investigate here the transformation undergone by a generic, paraxial, spectrally coherent quasi-monochromatic optical \textit{beam} (of finite transverse width) when recorded by a moving detector. Because of the space-time coupling engendered by the Lorentz transformation, the monochromatic beam is converted into a propagation-invariant pulsed beam traveling at a group velocity equal to that of the relative motion, and which belongs to the recently studied family of `space-time wave packets'. We show that the predicted transformation from a quasi-monochromatic beam to a pulsed wave packet can be observed even at terrestrial speeds.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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